./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/realpath-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/realpath-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 05679b26723da7fefe43df743638bd07f7ab18e951e1a83e76570c1072d39492 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:57:24,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:57:24,561 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-27 19:57:24,578 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:57:24,585 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:57:24,620 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:57:24,621 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:57:24,621 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:57:24,622 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:57:24,622 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:57:24,622 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:57:24,623 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:57:24,623 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:57:24,623 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:57:24,623 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:57:24,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:57:24,624 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:57:24,624 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:57:24,624 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:57:24,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:57:24,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:57:24,625 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:57:24,625 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 19:57:24,625 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 19:57:24,626 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:57:24,626 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:57:24,626 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:57:24,626 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:57:24,626 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:57:24,626 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:57:24,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:57:24,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:57:24,627 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:57:24,627 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:57:24,627 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:57:24,628 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:57:24,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:57:24,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:57:24,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:57:24,628 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:57:24,628 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:57:24,629 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:57:24,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:57:24,629 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:57:24,629 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:57:24,629 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:57:24,629 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:57:24,629 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05679b26723da7fefe43df743638bd07f7ab18e951e1a83e76570c1072d39492 [2024-11-27 19:57:24,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:57:24,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:57:24,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:57:24,998 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:57:25,000 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:57:25,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/busybox-1.22.0/realpath-1.i [2024-11-27 19:57:28,534 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/data/5c8228632/d7d4c12e27ec4094a391aec4214adfc6/FLAG00f77dd2d [2024-11-27 19:57:29,257 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:57:29,259 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/sv-benchmarks/c/busybox-1.22.0/realpath-1.i [2024-11-27 19:57:29,299 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/data/5c8228632/d7d4c12e27ec4094a391aec4214adfc6/FLAG00f77dd2d [2024-11-27 19:57:29,323 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/data/5c8228632/d7d4c12e27ec4094a391aec4214adfc6 [2024-11-27 19:57:29,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:57:29,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:57:29,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:57:29,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:57:29,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:57:29,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:57:29" (1/1) ... [2024-11-27 19:57:29,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a6a1c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:29, skipping insertion in model container [2024-11-27 19:57:29,339 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:57:29" (1/1) ... [2024-11-27 19:57:29,420 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:57:30,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:57:31,006 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:57:31,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:57:31,480 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2024-11-27 19:57:31,490 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:57:31,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:31 WrapperNode [2024-11-27 19:57:31,492 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:57:31,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:57:31,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:57:31,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:57:31,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:31" (1/1) ... [2024-11-27 19:57:31,553 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:31" (1/1) ... [2024-11-27 19:57:31,640 INFO L138 Inliner]: procedures = 600, calls = 515, calls flagged for inlining = 18, calls inlined = 15, statements flattened = 840 [2024-11-27 19:57:31,641 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:57:31,642 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:57:31,642 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:57:31,642 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:57:31,656 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:31" (1/1) ... [2024-11-27 19:57:31,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:31" (1/1) ... [2024-11-27 19:57:31,673 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:31" (1/1) ... [2024-11-27 19:57:31,685 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-27 19:57:31,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:31" (1/1) ... [2024-11-27 19:57:31,686 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:31" (1/1) ... [2024-11-27 19:57:31,757 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:31" (1/1) ... [2024-11-27 19:57:31,763 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:31" (1/1) ... [2024-11-27 19:57:31,775 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:31" (1/1) ... [2024-11-27 19:57:31,783 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:31" (1/1) ... [2024-11-27 19:57:31,788 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:31" (1/1) ... [2024-11-27 19:57:31,799 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:57:31,800 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:57:31,801 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:57:31,801 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:57:31,802 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:31" (1/1) ... [2024-11-27 19:57:31,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:57:31,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:31,872 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:57:31,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:57:31,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 19:57:31,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-27 19:57:31,918 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2024-11-27 19:57:31,918 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2024-11-27 19:57:31,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-27 19:57:31,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 19:57:31,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 19:57:31,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:57:31,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-27 19:57:31,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:57:31,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:57:31,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-11-27 19:57:31,920 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-11-27 19:57:31,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-27 19:57:31,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-27 19:57:31,922 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 19:57:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 19:57:31,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 19:57:31,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-27 19:57:31,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 19:57:31,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 19:57:32,550 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:57:32,555 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:57:34,619 INFO L? ?]: Removed 224 outVars from TransFormulas that were not future-live. [2024-11-27 19:57:34,620 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:57:34,644 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:57:34,647 INFO L312 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-27 19:57:34,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:57:34 BoogieIcfgContainer [2024-11-27 19:57:34,648 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:57:34,651 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:57:34,653 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:57:34,665 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:57:34,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:57:29" (1/3) ... [2024-11-27 19:57:34,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cea581f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:57:34, skipping insertion in model container [2024-11-27 19:57:34,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:57:31" (2/3) ... [2024-11-27 19:57:34,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cea581f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:57:34, skipping insertion in model container [2024-11-27 19:57:34,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:57:34" (3/3) ... [2024-11-27 19:57:34,668 INFO L128 eAbstractionObserver]: Analyzing ICFG realpath-1.i [2024-11-27 19:57:34,690 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:57:34,692 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG realpath-1.i that has 4 procedures, 160 locations, 1 initial locations, 13 loop locations, and 33 error locations. [2024-11-27 19:57:34,785 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:57:34,807 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@12fcf619, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:57:34,808 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-11-27 19:57:34,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 116 states have (on average 1.6551724137931034) internal successors, (192), 149 states have internal predecessors, (192), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 19:57:34,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-27 19:57:34,820 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:34,821 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 19:57:34,821 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:34,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:34,826 INFO L85 PathProgramCache]: Analyzing trace with hash 244369736, now seen corresponding path program 1 times [2024-11-27 19:57:34,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:34,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156378544] [2024-11-27 19:57:34,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:34,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:57:36,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:36,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156378544] [2024-11-27 19:57:36,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156378544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:36,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:36,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:57:36,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859341920] [2024-11-27 19:57:36,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:36,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:57:36,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:36,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:57:36,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:57:36,363 INFO L87 Difference]: Start difference. First operand has 160 states, 116 states have (on average 1.6551724137931034) internal successors, (192), 149 states have internal predecessors, (192), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-27 19:57:36,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:36,468 INFO L93 Difference]: Finished difference Result 233 states and 303 transitions. [2024-11-27 19:57:36,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:57:36,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2024-11-27 19:57:36,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:36,481 INFO L225 Difference]: With dead ends: 233 [2024-11-27 19:57:36,481 INFO L226 Difference]: Without dead ends: 75 [2024-11-27 19:57:36,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:57:36,493 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 1 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:36,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 158 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:57:36,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-27 19:57:36,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-27 19:57:36,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 69 states have internal predecessors, (80), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:36,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 86 transitions. [2024-11-27 19:57:36,553 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 86 transitions. Word has length 5 [2024-11-27 19:57:36,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:36,554 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 86 transitions. [2024-11-27 19:57:36,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-27 19:57:36,555 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 86 transitions. [2024-11-27 19:57:36,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 19:57:36,555 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:36,556 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-27 19:57:36,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 19:57:36,557 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:36,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:36,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1534757570, now seen corresponding path program 1 times [2024-11-27 19:57:36,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:36,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385307565] [2024-11-27 19:57:36,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:36,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:37,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:57:37,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:37,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385307565] [2024-11-27 19:57:37,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385307565] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:57:37,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605140870] [2024-11-27 19:57:37,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:37,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:37,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:37,172 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:37,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:57:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:37,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:57:37,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:37,826 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:57:37,827 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:57:37,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605140870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:37,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:57:37,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-27 19:57:37,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824925526] [2024-11-27 19:57:37,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:37,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:57:37,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:37,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:57:37,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:57:37,830 INFO L87 Difference]: Start difference. First operand 75 states and 86 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-27 19:57:37,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:37,890 INFO L93 Difference]: Finished difference Result 75 states and 86 transitions. [2024-11-27 19:57:37,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:57:37,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) Word has length 9 [2024-11-27 19:57:37,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:37,892 INFO L225 Difference]: With dead ends: 75 [2024-11-27 19:57:37,892 INFO L226 Difference]: Without dead ends: 74 [2024-11-27 19:57:37,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:57:37,893 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 1 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:37,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 221 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:57:37,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-27 19:57:37,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-27 19:57:37,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 68 states have internal predecessors, (79), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:37,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 85 transitions. [2024-11-27 19:57:37,908 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 85 transitions. Word has length 9 [2024-11-27 19:57:37,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:37,908 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 85 transitions. [2024-11-27 19:57:37,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-27 19:57:37,909 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 85 transitions. [2024-11-27 19:57:37,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-27 19:57:37,911 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:37,911 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2024-11-27 19:57:37,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:57:38,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:38,112 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:38,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:38,113 INFO L85 PathProgramCache]: Analyzing trace with hash 332844686, now seen corresponding path program 1 times [2024-11-27 19:57:38,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:38,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304112475] [2024-11-27 19:57:38,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:38,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:38,573 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 19:57:38,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:38,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304112475] [2024-11-27 19:57:38,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304112475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:38,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:38,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:57:38,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777454876] [2024-11-27 19:57:38,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:38,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:57:38,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:38,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:57:38,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:57:38,575 INFO L87 Difference]: Start difference. First operand 74 states and 85 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-27 19:57:38,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:38,608 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2024-11-27 19:57:38,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:57:38,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2024-11-27 19:57:38,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:38,613 INFO L225 Difference]: With dead ends: 74 [2024-11-27 19:57:38,613 INFO L226 Difference]: Without dead ends: 73 [2024-11-27 19:57:38,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:57:38,614 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:38,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:57:38,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-27 19:57:38,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 70. [2024-11-27 19:57:38,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 64 states have internal predecessors, (75), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:38,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2024-11-27 19:57:38,631 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 10 [2024-11-27 19:57:38,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:38,631 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2024-11-27 19:57:38,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-11-27 19:57:38,631 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2024-11-27 19:57:38,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-27 19:57:38,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:38,632 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:38,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:57:38,632 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:38,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:38,633 INFO L85 PathProgramCache]: Analyzing trace with hash 20605056, now seen corresponding path program 1 times [2024-11-27 19:57:38,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:38,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905595030] [2024-11-27 19:57:38,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:38,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:39,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:57:39,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:39,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905595030] [2024-11-27 19:57:39,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905595030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:57:39,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539592352] [2024-11-27 19:57:39,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:39,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:39,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:39,122 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:39,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:57:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:39,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 1100 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 19:57:39,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:39,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 19:57:39,792 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:57:39,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539592352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:39,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:57:39,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-27 19:57:39,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360583222] [2024-11-27 19:57:39,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:39,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:57:39,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:39,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:57:39,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:57:39,795 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:39,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:39,835 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2024-11-27 19:57:39,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:57:39,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-11-27 19:57:39,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:39,839 INFO L225 Difference]: With dead ends: 70 [2024-11-27 19:57:39,839 INFO L226 Difference]: Without dead ends: 68 [2024-11-27 19:57:39,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:57:39,840 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 51 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:39,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 88 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:57:39,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-27 19:57:39,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-27 19:57:39,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 53 states have (on average 1.3773584905660377) internal successors, (73), 62 states have internal predecessors, (73), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:39,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2024-11-27 19:57:39,853 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 14 [2024-11-27 19:57:39,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:39,857 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2024-11-27 19:57:39,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:39,858 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2024-11-27 19:57:39,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 19:57:39,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:39,858 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:39,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 19:57:40,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:40,059 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:40,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:40,060 INFO L85 PathProgramCache]: Analyzing trace with hash 638757017, now seen corresponding path program 1 times [2024-11-27 19:57:40,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:40,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665230632] [2024-11-27 19:57:40,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:40,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:40,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:57:40,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:40,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665230632] [2024-11-27 19:57:40,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665230632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:57:40,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649056426] [2024-11-27 19:57:40,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:40,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:40,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:40,496 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:40,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 19:57:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:41,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:57:41,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:41,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:57:41,110 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:57:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:57:41,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649056426] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:57:41,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:57:41,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-27 19:57:41,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569038044] [2024-11-27 19:57:41,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:57:41,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:57:41,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:41,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:57:41,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:57:41,173 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:57:41,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:41,243 INFO L93 Difference]: Finished difference Result 141 states and 165 transitions. [2024-11-27 19:57:41,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:57:41,244 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-27 19:57:41,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:41,244 INFO L225 Difference]: With dead ends: 141 [2024-11-27 19:57:41,245 INFO L226 Difference]: Without dead ends: 80 [2024-11-27 19:57:41,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:57:41,246 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 6 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:41,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 287 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:57:41,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-27 19:57:41,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-27 19:57:41,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 74 states have internal predecessors, (85), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:41,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2024-11-27 19:57:41,262 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 15 [2024-11-27 19:57:41,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:41,262 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2024-11-27 19:57:41,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:57:41,263 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2024-11-27 19:57:41,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-27 19:57:41,263 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:41,263 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:41,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 19:57:41,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:41,467 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:41,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:41,468 INFO L85 PathProgramCache]: Analyzing trace with hash 2111771783, now seen corresponding path program 2 times [2024-11-27 19:57:41,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:41,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628585969] [2024-11-27 19:57:41,468 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:57:41,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:41,693 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 19:57:41,693 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:57:42,054 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 19:57:42,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:42,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628585969] [2024-11-27 19:57:42,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628585969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:42,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:42,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:57:42,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433662416] [2024-11-27 19:57:42,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:42,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:57:42,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:42,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:57:42,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:57:42,056 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:42,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:42,170 INFO L93 Difference]: Finished difference Result 80 states and 91 transitions. [2024-11-27 19:57:42,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:57:42,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-11-27 19:57:42,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:42,171 INFO L225 Difference]: With dead ends: 80 [2024-11-27 19:57:42,171 INFO L226 Difference]: Without dead ends: 78 [2024-11-27 19:57:42,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:57:42,172 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 50 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:42,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 207 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:57:42,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-27 19:57:42,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-27 19:57:42,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 72 states have internal predecessors, (83), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:42,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2024-11-27 19:57:42,187 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 27 [2024-11-27 19:57:42,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:42,190 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2024-11-27 19:57:42,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:42,190 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2024-11-27 19:57:42,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-27 19:57:42,191 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:42,191 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:42,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 19:57:42,191 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:42,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:42,192 INFO L85 PathProgramCache]: Analyzing trace with hash -907466460, now seen corresponding path program 1 times [2024-11-27 19:57:42,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:42,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775639966] [2024-11-27 19:57:42,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:42,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:42,680 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 19:57:42,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:42,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775639966] [2024-11-27 19:57:42,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775639966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:42,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:42,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:57:42,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676266296] [2024-11-27 19:57:42,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:42,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:57:42,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:42,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:57:42,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:57:42,682 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:42,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:42,719 INFO L93 Difference]: Finished difference Result 135 states and 158 transitions. [2024-11-27 19:57:42,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:57:42,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2024-11-27 19:57:42,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:42,721 INFO L225 Difference]: With dead ends: 135 [2024-11-27 19:57:42,721 INFO L226 Difference]: Without dead ends: 82 [2024-11-27 19:57:42,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:57:42,722 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 3 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:42,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 138 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:57:42,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-27 19:57:42,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-27 19:57:42,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 76 states have internal predecessors, (87), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:42,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2024-11-27 19:57:42,729 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 34 [2024-11-27 19:57:42,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:42,730 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 93 transitions. [2024-11-27 19:57:42,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:42,730 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions. [2024-11-27 19:57:42,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-27 19:57:42,731 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:42,731 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:42,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 19:57:42,731 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:42,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:42,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1950730489, now seen corresponding path program 1 times [2024-11-27 19:57:42,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:42,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396312230] [2024-11-27 19:57:42,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:42,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:43,095 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 19:57:43,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:43,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396312230] [2024-11-27 19:57:43,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396312230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:43,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:43,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:57:43,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326417386] [2024-11-27 19:57:43,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:43,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:57:43,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:43,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:57:43,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:57:43,097 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:43,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:43,124 INFO L93 Difference]: Finished difference Result 88 states and 99 transitions. [2024-11-27 19:57:43,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:57:43,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2024-11-27 19:57:43,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:43,126 INFO L225 Difference]: With dead ends: 88 [2024-11-27 19:57:43,126 INFO L226 Difference]: Without dead ends: 86 [2024-11-27 19:57:43,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:57:43,127 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 1 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:43,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 140 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:57:43,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-27 19:57:43,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-27 19:57:43,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 73 states have (on average 1.2465753424657535) internal successors, (91), 80 states have internal predecessors, (91), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:43,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 97 transitions. [2024-11-27 19:57:43,139 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 97 transitions. Word has length 36 [2024-11-27 19:57:43,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:43,139 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 97 transitions. [2024-11-27 19:57:43,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:43,139 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 97 transitions. [2024-11-27 19:57:43,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 19:57:43,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:43,141 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:43,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 19:57:43,142 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:43,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:43,142 INFO L85 PathProgramCache]: Analyzing trace with hash 2044006110, now seen corresponding path program 1 times [2024-11-27 19:57:43,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:43,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942869906] [2024-11-27 19:57:43,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:43,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:43,600 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-27 19:57:43,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:43,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942869906] [2024-11-27 19:57:43,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942869906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:43,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:43,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:57:43,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302524026] [2024-11-27 19:57:43,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:43,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:57:43,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:43,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:57:43,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:57:43,604 INFO L87 Difference]: Start difference. First operand 86 states and 97 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:43,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:43,669 INFO L93 Difference]: Finished difference Result 103 states and 116 transitions. [2024-11-27 19:57:43,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:57:43,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2024-11-27 19:57:43,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:43,671 INFO L225 Difference]: With dead ends: 103 [2024-11-27 19:57:43,671 INFO L226 Difference]: Without dead ends: 101 [2024-11-27 19:57:43,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:57:43,672 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 3 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:43,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 135 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:57:43,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-27 19:57:43,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2024-11-27 19:57:43,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 86 states have (on average 1.255813953488372) internal successors, (108), 93 states have internal predecessors, (108), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:43,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 114 transitions. [2024-11-27 19:57:43,694 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 114 transitions. Word has length 38 [2024-11-27 19:57:43,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:43,694 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 114 transitions. [2024-11-27 19:57:43,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:43,697 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 114 transitions. [2024-11-27 19:57:43,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 19:57:43,699 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:43,699 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:43,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 19:57:43,699 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:43,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:43,699 INFO L85 PathProgramCache]: Analyzing trace with hash 2044003932, now seen corresponding path program 1 times [2024-11-27 19:57:43,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:43,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987847367] [2024-11-27 19:57:43,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:43,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:44,274 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 19:57:44,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:44,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987847367] [2024-11-27 19:57:44,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987847367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:57:44,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395055998] [2024-11-27 19:57:44,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:44,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:44,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:44,281 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:44,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 19:57:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:45,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 1286 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 19:57:45,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:45,395 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:57:45,395 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:57:45,604 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 19:57:45,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395055998] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:57:45,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:57:45,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-11-27 19:57:45,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816700871] [2024-11-27 19:57:45,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:57:45,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 19:57:45,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:45,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 19:57:45,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-27 19:57:45,608 INFO L87 Difference]: Start difference. First operand 99 states and 114 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 19:57:45,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:45,898 INFO L93 Difference]: Finished difference Result 202 states and 238 transitions. [2024-11-27 19:57:45,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 19:57:45,898 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2024-11-27 19:57:45,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:45,900 INFO L225 Difference]: With dead ends: 202 [2024-11-27 19:57:45,901 INFO L226 Difference]: Without dead ends: 122 [2024-11-27 19:57:45,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-27 19:57:45,903 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 7 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:45,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 437 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 19:57:45,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-27 19:57:45,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-27 19:57:45,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.1818181818181819) internal successors, (130), 116 states have internal predecessors, (130), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:45,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 136 transitions. [2024-11-27 19:57:45,919 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 136 transitions. Word has length 38 [2024-11-27 19:57:45,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:45,919 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 136 transitions. [2024-11-27 19:57:45,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 19:57:45,920 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 136 transitions. [2024-11-27 19:57:45,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-27 19:57:45,921 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:45,922 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:45,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 19:57:46,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-27 19:57:46,126 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:46,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:46,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1458066741, now seen corresponding path program 1 times [2024-11-27 19:57:46,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:46,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586001307] [2024-11-27 19:57:46,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:46,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:46,590 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-27 19:57:46,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:46,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586001307] [2024-11-27 19:57:46,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586001307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:46,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:46,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:57:46,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996117208] [2024-11-27 19:57:46,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:46,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:57:46,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:46,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:57:46,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:57:46,593 INFO L87 Difference]: Start difference. First operand 122 states and 136 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:46,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:46,631 INFO L93 Difference]: Finished difference Result 122 states and 136 transitions. [2024-11-27 19:57:46,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:57:46,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2024-11-27 19:57:46,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:46,633 INFO L225 Difference]: With dead ends: 122 [2024-11-27 19:57:46,633 INFO L226 Difference]: Without dead ends: 121 [2024-11-27 19:57:46,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:57:46,634 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:46,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:57:46,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-27 19:57:46,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 115. [2024-11-27 19:57:46,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 104 states have (on average 1.1730769230769231) internal successors, (122), 109 states have internal predecessors, (122), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:46,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 128 transitions. [2024-11-27 19:57:46,652 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 128 transitions. Word has length 63 [2024-11-27 19:57:46,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:46,654 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 128 transitions. [2024-11-27 19:57:46,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:46,654 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 128 transitions. [2024-11-27 19:57:46,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-27 19:57:46,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:46,660 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:46,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 19:57:46,660 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:46,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:46,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1415335589, now seen corresponding path program 1 times [2024-11-27 19:57:46,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:46,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577786121] [2024-11-27 19:57:46,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:46,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:47,244 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 19:57:47,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:47,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577786121] [2024-11-27 19:57:47,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577786121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:57:47,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400844466] [2024-11-27 19:57:47,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:47,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:47,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:47,247 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:47,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 19:57:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:48,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 1364 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 19:57:48,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:48,202 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-27 19:57:48,202 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:57:48,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400844466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:48,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:57:48,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2024-11-27 19:57:48,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833447411] [2024-11-27 19:57:48,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:48,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:57:48,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:48,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:57:48,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:57:48,204 INFO L87 Difference]: Start difference. First operand 115 states and 128 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:48,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:48,342 INFO L93 Difference]: Finished difference Result 147 states and 168 transitions. [2024-11-27 19:57:48,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:57:48,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2024-11-27 19:57:48,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:48,345 INFO L225 Difference]: With dead ends: 147 [2024-11-27 19:57:48,345 INFO L226 Difference]: Without dead ends: 136 [2024-11-27 19:57:48,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:57:48,346 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 32 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:48,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 242 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:57:48,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-27 19:57:48,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 117. [2024-11-27 19:57:48,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 106 states have (on average 1.169811320754717) internal successors, (124), 111 states have internal predecessors, (124), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:48,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 130 transitions. [2024-11-27 19:57:48,357 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 130 transitions. Word has length 64 [2024-11-27 19:57:48,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:48,357 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 130 transitions. [2024-11-27 19:57:48,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:48,358 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 130 transitions. [2024-11-27 19:57:48,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-27 19:57:48,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:48,359 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:48,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 19:57:48,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 19:57:48,560 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:48,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:48,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1099196567, now seen corresponding path program 1 times [2024-11-27 19:57:48,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:48,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657222047] [2024-11-27 19:57:48,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:48,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:49,437 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 19:57:49,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:49,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657222047] [2024-11-27 19:57:49,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657222047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:49,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:49,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:57:49,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331068497] [2024-11-27 19:57:49,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:49,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:57:49,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:49,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:57:49,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:57:49,439 INFO L87 Difference]: Start difference. First operand 117 states and 130 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:49,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:49,498 INFO L93 Difference]: Finished difference Result 151 states and 171 transitions. [2024-11-27 19:57:49,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:57:49,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2024-11-27 19:57:49,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:49,500 INFO L225 Difference]: With dead ends: 151 [2024-11-27 19:57:49,502 INFO L226 Difference]: Without dead ends: 120 [2024-11-27 19:57:49,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:57:49,502 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:49,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 275 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:57:49,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-27 19:57:49,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-27 19:57:49,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 109 states have (on average 1.165137614678899) internal successors, (127), 114 states have internal predecessors, (127), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:49,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 133 transitions. [2024-11-27 19:57:49,512 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 133 transitions. Word has length 64 [2024-11-27 19:57:49,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:49,512 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 133 transitions. [2024-11-27 19:57:49,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:49,512 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 133 transitions. [2024-11-27 19:57:49,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-27 19:57:49,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:49,514 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 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] [2024-11-27 19:57:49,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 19:57:49,514 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:49,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:49,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1904174134, now seen corresponding path program 1 times [2024-11-27 19:57:49,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:49,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871881655] [2024-11-27 19:57:49,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:49,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:50,043 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 19:57:50,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:50,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871881655] [2024-11-27 19:57:50,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871881655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:50,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:50,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:57:50,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155198659] [2024-11-27 19:57:50,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:50,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:57:50,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:50,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:57:50,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:57:50,046 INFO L87 Difference]: Start difference. First operand 120 states and 133 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:50,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:50,084 INFO L93 Difference]: Finished difference Result 123 states and 135 transitions. [2024-11-27 19:57:50,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:57:50,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2024-11-27 19:57:50,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:50,085 INFO L225 Difference]: With dead ends: 123 [2024-11-27 19:57:50,086 INFO L226 Difference]: Without dead ends: 120 [2024-11-27 19:57:50,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:57:50,087 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 17 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:50,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 259 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:57:50,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-27 19:57:50,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-27 19:57:50,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 109 states have (on average 1.1559633027522935) internal successors, (126), 114 states have internal predecessors, (126), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:50,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 132 transitions. [2024-11-27 19:57:50,096 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 132 transitions. Word has length 68 [2024-11-27 19:57:50,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:50,096 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 132 transitions. [2024-11-27 19:57:50,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:50,097 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 132 transitions. [2024-11-27 19:57:50,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-27 19:57:50,097 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:50,097 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 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] [2024-11-27 19:57:50,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 19:57:50,098 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:50,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:50,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1904172212, now seen corresponding path program 1 times [2024-11-27 19:57:50,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:50,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431923968] [2024-11-27 19:57:50,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:50,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:51,127 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 19:57:51,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:51,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431923968] [2024-11-27 19:57:51,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431923968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:57:51,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:57:51,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:57:51,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752631946] [2024-11-27 19:57:51,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:57:51,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:57:51,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:51,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:57:51,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:57:51,129 INFO L87 Difference]: Start difference. First operand 120 states and 132 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:51,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:51,289 INFO L93 Difference]: Finished difference Result 154 states and 171 transitions. [2024-11-27 19:57:51,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:57:51,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2024-11-27 19:57:51,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:51,291 INFO L225 Difference]: With dead ends: 154 [2024-11-27 19:57:51,291 INFO L226 Difference]: Without dead ends: 118 [2024-11-27 19:57:51,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:57:51,294 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 55 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:51,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 238 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:57:51,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-27 19:57:51,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-27 19:57:51,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 107 states have (on average 1.1495327102803738) internal successors, (123), 112 states have internal predecessors, (123), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:51,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 129 transitions. [2024-11-27 19:57:51,308 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 129 transitions. Word has length 68 [2024-11-27 19:57:51,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:51,308 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 129 transitions. [2024-11-27 19:57:51,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:51,308 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 129 transitions. [2024-11-27 19:57:51,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-27 19:57:51,309 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:51,309 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:57:51,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 19:57:51,309 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:51,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:51,310 INFO L85 PathProgramCache]: Analyzing trace with hash -758779828, now seen corresponding path program 1 times [2024-11-27 19:57:51,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:51,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073707962] [2024-11-27 19:57:51,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:51,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:51,840 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-27 19:57:51,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:51,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073707962] [2024-11-27 19:57:51,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073707962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:57:51,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439819485] [2024-11-27 19:57:51,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:51,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:51,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:51,845 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:51,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 19:57:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:52,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:57:52,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:52,882 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-27 19:57:52,883 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:57:52,939 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-27 19:57:52,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439819485] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:57:52,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:57:52,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-27 19:57:52,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576201514] [2024-11-27 19:57:52,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:57:52,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:57:52,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:52,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:57:52,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:57:52,942 INFO L87 Difference]: Start difference. First operand 118 states and 129 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:53,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:53,017 INFO L93 Difference]: Finished difference Result 204 states and 229 transitions. [2024-11-27 19:57:53,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:57:53,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 72 [2024-11-27 19:57:53,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:53,019 INFO L225 Difference]: With dead ends: 204 [2024-11-27 19:57:53,019 INFO L226 Difference]: Without dead ends: 142 [2024-11-27 19:57:53,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:57:53,020 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 6 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:53,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 264 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:57:53,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-27 19:57:53,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-27 19:57:53,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 131 states have (on average 1.1221374045801527) internal successors, (147), 136 states have internal predecessors, (147), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:53,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 153 transitions. [2024-11-27 19:57:53,032 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 153 transitions. Word has length 72 [2024-11-27 19:57:53,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:53,032 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 153 transitions. [2024-11-27 19:57:53,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:53,033 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 153 transitions. [2024-11-27 19:57:53,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-27 19:57:53,034 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:53,034 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 4, 4, 4, 4, 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] [2024-11-27 19:57:53,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 19:57:53,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 19:57:53,238 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:53,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:53,239 INFO L85 PathProgramCache]: Analyzing trace with hash 139638813, now seen corresponding path program 1 times [2024-11-27 19:57:53,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:53,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562271903] [2024-11-27 19:57:53,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:53,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:53,749 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-11-27 19:57:53,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:53,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562271903] [2024-11-27 19:57:53,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562271903] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:57:53,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839633853] [2024-11-27 19:57:53,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:53,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:53,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:53,753 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:53,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 19:57:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:54,902 INFO L256 TraceCheckSpWp]: Trace formula consists of 1507 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 19:57:54,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:55,052 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-27 19:57:55,052 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:57:55,241 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-27 19:57:55,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839633853] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:57:55,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:57:55,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-11-27 19:57:55,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75899142] [2024-11-27 19:57:55,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:57:55,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 19:57:55,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:55,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 19:57:55,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-27 19:57:55,244 INFO L87 Difference]: Start difference. First operand 142 states and 153 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:55,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:55,486 INFO L93 Difference]: Finished difference Result 263 states and 295 transitions. [2024-11-27 19:57:55,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 19:57:55,487 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2024-11-27 19:57:55,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:55,488 INFO L225 Difference]: With dead ends: 263 [2024-11-27 19:57:55,489 INFO L226 Difference]: Without dead ends: 189 [2024-11-27 19:57:55,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-27 19:57:55,492 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 7 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:55,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 480 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:57:55,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-27 19:57:55,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2024-11-27 19:57:55,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 179 states have (on average 1.0837988826815643) internal successors, (194), 183 states have internal predecessors, (194), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:55,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 200 transitions. [2024-11-27 19:57:55,516 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 200 transitions. Word has length 86 [2024-11-27 19:57:55,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:55,516 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 200 transitions. [2024-11-27 19:57:55,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:55,517 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 200 transitions. [2024-11-27 19:57:55,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-27 19:57:55,518 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:55,518 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 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] [2024-11-27 19:57:55,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 19:57:55,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-27 19:57:55,719 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:55,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:55,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1916106949, now seen corresponding path program 1 times [2024-11-27 19:57:55,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:55,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727225079] [2024-11-27 19:57:55,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:55,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:56,297 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-27 19:57:56,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:56,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727225079] [2024-11-27 19:57:56,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727225079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:57:56,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450284610] [2024-11-27 19:57:56,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:56,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:57:56,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:57:56,301 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:57:56,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 19:57:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:57:57,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:57:57,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:57:57,498 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-27 19:57:57,498 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:57:57,557 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-27 19:57:57,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450284610] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:57:57,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:57:57,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-27 19:57:57,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670492130] [2024-11-27 19:57:57,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:57:57,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:57:57,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:57,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:57:57,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:57:57,561 INFO L87 Difference]: Start difference. First operand 189 states and 200 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:57,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:57:57,639 INFO L93 Difference]: Finished difference Result 202 states and 215 transitions. [2024-11-27 19:57:57,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:57:57,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2024-11-27 19:57:57,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:57:57,642 INFO L225 Difference]: With dead ends: 202 [2024-11-27 19:57:57,642 INFO L226 Difference]: Without dead ends: 201 [2024-11-27 19:57:57,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:57:57,644 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:57:57,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 263 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:57:57,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-27 19:57:57,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2024-11-27 19:57:57,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 191 states have (on average 1.0785340314136125) internal successors, (206), 195 states have internal predecessors, (206), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:57:57,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 212 transitions. [2024-11-27 19:57:57,663 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 212 transitions. Word has length 111 [2024-11-27 19:57:57,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:57:57,664 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 212 transitions. [2024-11-27 19:57:57,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:57:57,664 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 212 transitions. [2024-11-27 19:57:57,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-27 19:57:57,666 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:57:57,666 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 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] [2024-11-27 19:57:57,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 19:57:57,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-27 19:57:57,867 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-27 19:57:57,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:57:57,868 INFO L85 PathProgramCache]: Analyzing trace with hash -694324192, now seen corresponding path program 1 times [2024-11-27 19:57:57,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:57:57,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38268104] [2024-11-27 19:57:57,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:57:57,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:57:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:58:12,979 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 98 proven. 93 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 19:58:12,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:58:12,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38268104] [2024-11-27 19:58:12,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38268104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:58:12,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17663050] [2024-11-27 19:58:12,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:58:12,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:58:12,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:58:12,982 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:58:12,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7383faae-d211-4c15-9421-2cd893ce3084/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 19:58:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:58:14,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 1787 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-11-27 19:58:14,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:58:14,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-27 19:58:14,222 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 19:58:14,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 19:58:14,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-27 19:58:14,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-27 19:58:14,494 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-27 19:58:14,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 19:58:14,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 71 [2024-11-27 19:58:14,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 19:58:14,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 90 [2024-11-27 19:58:14,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 19:58:14,571 INFO L349 Elim1Store]: treesize reduction 33, result has 13.2 percent of original size [2024-11-27 19:58:14,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 54 [2024-11-27 19:58:14,616 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2024-11-27 19:58:14,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 23 [2024-11-27 19:58:14,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 19:58:14,666 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-27 19:58:14,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2024-11-27 19:58:14,812 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-27 19:58:14,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2024-11-27 19:58:14,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2024-11-27 19:58:14,946 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-27 19:58:14,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2024-11-27 19:58:14,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2024-11-27 19:58:15,176 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-27 19:58:15,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2024-11-27 19:58:15,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2024-11-27 19:58:15,450 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-27 19:58:15,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2024-11-27 19:58:15,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2024-11-27 19:58:15,631 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-27 19:58:15,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2024-11-27 19:58:15,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2024-11-27 19:58:15,779 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-27 19:58:15,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2024-11-27 19:58:15,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2024-11-27 19:58:15,895 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-27 19:58:15,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2024-11-27 19:58:15,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2024-11-27 19:58:16,030 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-27 19:58:16,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2024-11-27 19:58:16,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2024-11-27 19:58:16,164 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-27 19:58:16,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2024-11-27 19:58:16,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2024-11-27 19:58:16,293 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-27 19:58:16,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2024-11-27 19:58:16,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2024-11-27 19:58:16,626 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2024-11-27 19:58:16,626 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:00:53,672 INFO L349 Elim1Store]: treesize reduction 34, result has 59.0 percent of original size [2024-11-27 20:00:53,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 94251 treesize of output 94266 [2024-11-27 20:00:53,882 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:00:53,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 94217 treesize of output 41028