./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/chroot-incomplete-2.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_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/chroot-incomplete-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1 --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 ddcc9d247afe7ee578ac42a6235418dbb1180c16aae89db83ebb72b439e4993a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:11:00,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:11:00,773 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 10:11:00,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:11:00,778 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:11:00,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:11:00,798 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:11:00,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:11:00,799 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:11:00,799 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:11:00,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:11:00,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:11:00,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:11:00,799 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:11:00,800 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:11:00,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:11:00,800 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:11:00,800 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:11:00,800 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:11:00,800 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:11:00,800 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:11:00,800 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:11:00,800 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 10:11:00,800 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 10:11:00,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:11:00,800 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:11:00,801 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:11:00,801 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:11:00,801 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:11:00,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:11:00,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:11:00,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:11:00,801 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:11:00,801 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:11:00,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:11:00,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:11:00,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:11:00,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:11:00,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:11:00,802 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:11:00,802 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:11:00,802 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:11:00,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:11:00,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:11:00,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:11:00,802 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:11:00,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:11:00,802 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_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1 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 -> ddcc9d247afe7ee578ac42a6235418dbb1180c16aae89db83ebb72b439e4993a [2024-12-02 10:11:01,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:11:01,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:11:01,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:11:01,042 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:11:01,042 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:11:01,043 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/busybox-1.22.0/chroot-incomplete-2.i [2024-12-02 10:11:03,717 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/data/f8380cf7c/cadde8e304c049158c40546cf6ba63be/FLAG1f7a5fba7 [2024-12-02 10:11:04,000 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:11:04,000 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/sv-benchmarks/c/busybox-1.22.0/chroot-incomplete-2.i [2024-12-02 10:11:04,018 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/data/f8380cf7c/cadde8e304c049158c40546cf6ba63be/FLAG1f7a5fba7 [2024-12-02 10:11:04,263 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/data/f8380cf7c/cadde8e304c049158c40546cf6ba63be [2024-12-02 10:11:04,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:11:04,265 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:11:04,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:11:04,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:11:04,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:11:04,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:11:04" (1/1) ... [2024-12-02 10:11:04,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21d6a045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:11:04, skipping insertion in model container [2024-12-02 10:11:04,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:11:04" (1/1) ... [2024-12-02 10:11:04,311 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:11:05,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:11:05,307 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:11:05,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:11:05,579 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2024-12-02 10:11:05,585 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:11:05,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:11:05 WrapperNode [2024-12-02 10:11:05,586 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:11:05,586 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:11:05,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:11:05,587 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:11:05,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:11:05" (1/1) ... [2024-12-02 10:11:05,617 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:11:05" (1/1) ... [2024-12-02 10:11:05,672 INFO L138 Inliner]: procedures = 615, calls = 586, calls flagged for inlining = 25, calls inlined = 23, statements flattened = 1012 [2024-12-02 10:11:05,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:11:05,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:11:05,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:11:05,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:11:05,682 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:11:05" (1/1) ... [2024-12-02 10:11:05,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:11:05" (1/1) ... [2024-12-02 10:11:05,689 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:11:05" (1/1) ... [2024-12-02 10:11:05,707 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-12-02 10:11:05,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:11:05" (1/1) ... [2024-12-02 10:11:05,708 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:11:05" (1/1) ... [2024-12-02 10:11:05,753 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:11:05" (1/1) ... [2024-12-02 10:11:05,756 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:11:05" (1/1) ... [2024-12-02 10:11:05,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:11:05" (1/1) ... [2024-12-02 10:11:05,769 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:11:05" (1/1) ... [2024-12-02 10:11:05,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:11:05" (1/1) ... [2024-12-02 10:11:05,785 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:11:05,785 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:11:05,785 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:11:05,786 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:11:05,786 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:11:05" (1/1) ... [2024-12-02 10:11:05,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:11:05,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:11:05,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:11:05,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:11:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure execvp [2024-12-02 10:11:05,839 INFO L138 BoogieDeclarations]: Found implementation of procedure execvp [2024-12-02 10:11:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 10:11:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-12-02 10:11:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-12-02 10:11:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 10:11:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 10:11:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:11:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-02 10:11:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:11:05,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:11:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-12-02 10:11:05,840 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-12-02 10:11:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-12-02 10:11:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-12-02 10:11:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2024-12-02 10:11:05,840 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2024-12-02 10:11:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 10:11:05,840 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 10:11:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 10:11:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-02 10:11:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-12-02 10:11:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 10:11:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 10:11:06,146 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:11:06,148 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:11:07,434 INFO L? ?]: Removed 273 outVars from TransFormulas that were not future-live. [2024-12-02 10:11:07,434 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:11:07,446 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:11:07,447 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2024-12-02 10:11:07,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:11:07 BoogieIcfgContainer [2024-12-02 10:11:07,447 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:11:07,449 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:11:07,449 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:11:07,453 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:11:07,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:11:04" (1/3) ... [2024-12-02 10:11:07,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5ec5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:11:07, skipping insertion in model container [2024-12-02 10:11:07,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:11:05" (2/3) ... [2024-12-02 10:11:07,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5ec5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:11:07, skipping insertion in model container [2024-12-02 10:11:07,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:11:07" (3/3) ... [2024-12-02 10:11:07,455 INFO L128 eAbstractionObserver]: Analyzing ICFG chroot-incomplete-2.i [2024-12-02 10:11:07,466 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:11:07,469 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chroot-incomplete-2.i that has 5 procedures, 201 locations, 1 initial locations, 12 loop locations, and 34 error locations. [2024-12-02 10:11:07,514 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:11:07,524 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;@1978f04b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:11:07,524 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-12-02 10:11:07,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 149 states have (on average 1.5838926174496644) internal successors, (236), 185 states have internal predecessors, (236), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 10:11:07,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-02 10:11:07,532 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:07,532 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 10:11:07,533 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:07,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:07,537 INFO L85 PathProgramCache]: Analyzing trace with hash 286359156, now seen corresponding path program 1 times [2024-12-02 10:11:07,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:07,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807066823] [2024-12-02 10:11:07,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:07,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:08,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:11:08,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:08,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807066823] [2024-12-02 10:11:08,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807066823] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:08,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:11:08,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:11:08,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10799592] [2024-12-02 10:11:08,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:08,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:11:08,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:08,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:11:08,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:11:08,336 INFO L87 Difference]: Start difference. First operand has 201 states, 149 states have (on average 1.5838926174496644) internal successors, (236), 185 states have internal predecessors, (236), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) 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) [2024-12-02 10:11:08,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:08,408 INFO L93 Difference]: Finished difference Result 311 states and 415 transitions. [2024-12-02 10:11:08,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:11:08,411 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 [2024-12-02 10:11:08,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:08,418 INFO L225 Difference]: With dead ends: 311 [2024-12-02 10:11:08,418 INFO L226 Difference]: Without dead ends: 111 [2024-12-02 10:11:08,423 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 [2024-12-02 10:11:08,426 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 1 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 258 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 [2024-12-02 10:11:08,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 258 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:11:08,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-12-02 10:11:08,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-12-02 10:11:08,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 85 states have (on average 1.411764705882353) internal successors, (120), 101 states have internal predecessors, (120), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:08,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 135 transitions. [2024-12-02 10:11:08,464 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 135 transitions. Word has length 5 [2024-12-02 10:11:08,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:08,465 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 135 transitions. [2024-12-02 10:11:08,465 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) [2024-12-02 10:11:08,465 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 135 transitions. [2024-12-02 10:11:08,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-02 10:11:08,466 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:08,466 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-12-02 10:11:08,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:11:08,466 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:08,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:08,467 INFO L85 PathProgramCache]: Analyzing trace with hash 387544302, now seen corresponding path program 1 times [2024-12-02 10:11:08,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:08,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830558026] [2024-12-02 10:11:08,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:08,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:08,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:11:08,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:08,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830558026] [2024-12-02 10:11:08,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830558026] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:08,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810455663] [2024-12-02 10:11:08,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:08,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:08,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:11:08,901 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:11:08,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:11:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:09,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:11:09,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:09,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:11:09,451 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:11:09,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810455663] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:09,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:11:09,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-12-02 10:11:09,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419570255] [2024-12-02 10:11:09,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:09,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:11:09,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:09,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:11:09,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:11:09,454 INFO L87 Difference]: Start difference. First operand 111 states and 135 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) [2024-12-02 10:11:09,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:09,500 INFO L93 Difference]: Finished difference Result 111 states and 135 transitions. [2024-12-02 10:11:09,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:11:09,500 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 [2024-12-02 10:11:09,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:09,501 INFO L225 Difference]: With dead ends: 111 [2024-12-02 10:11:09,501 INFO L226 Difference]: Without dead ends: 110 [2024-12-02 10:11:09,502 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 [2024-12-02 10:11:09,503 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 1 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 368 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 [2024-12-02 10:11:09,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 368 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:11:09,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-12-02 10:11:09,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-12-02 10:11:09,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 85 states have (on average 1.4) internal successors, (119), 100 states have internal predecessors, (119), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:09,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 134 transitions. [2024-12-02 10:11:09,511 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 134 transitions. Word has length 9 [2024-12-02 10:11:09,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:09,511 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 134 transitions. [2024-12-02 10:11:09,511 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) [2024-12-02 10:11:09,512 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 134 transitions. [2024-12-02 10:11:09,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-02 10:11:09,512 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:09,512 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2024-12-02 10:11:09,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:11:09,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-12-02 10:11:09,713 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:09,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:09,714 INFO L85 PathProgramCache]: Analyzing trace with hash -871028210, now seen corresponding path program 1 times [2024-12-02 10:11:09,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:09,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943608598] [2024-12-02 10:11:09,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:09,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:09,937 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 10:11:09,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:09,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943608598] [2024-12-02 10:11:09,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943608598] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:09,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:11:09,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:11:09,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286068542] [2024-12-02 10:11:09,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:09,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:11:09,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:09,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:11:09,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:11:09,939 INFO L87 Difference]: Start difference. First operand 110 states and 134 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) [2024-12-02 10:11:09,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:09,958 INFO L93 Difference]: Finished difference Result 110 states and 134 transitions. [2024-12-02 10:11:09,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:11:09,959 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 [2024-12-02 10:11:09,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:09,960 INFO L225 Difference]: With dead ends: 110 [2024-12-02 10:11:09,960 INFO L226 Difference]: Without dead ends: 109 [2024-12-02 10:11:09,961 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 [2024-12-02 10:11:09,961 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 247 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 [2024-12-02 10:11:09,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 247 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:11:09,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-12-02 10:11:09,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2024-12-02 10:11:09,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 82 states have (on average 1.4024390243902438) internal successors, (115), 96 states have internal predecessors, (115), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:09,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 130 transitions. [2024-12-02 10:11:09,970 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 130 transitions. Word has length 10 [2024-12-02 10:11:09,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:09,970 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 130 transitions. [2024-12-02 10:11:09,970 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) [2024-12-02 10:11:09,970 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 130 transitions. [2024-12-02 10:11:09,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-02 10:11:09,970 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:09,970 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:11:09,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:11:09,971 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:09,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:09,971 INFO L85 PathProgramCache]: Analyzing trace with hash -878076858, now seen corresponding path program 1 times [2024-12-02 10:11:09,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:09,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620940249] [2024-12-02 10:11:09,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:09,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:10,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:11:10,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:10,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620940249] [2024-12-02 10:11:10,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620940249] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:10,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566490569] [2024-12-02 10:11:10,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:10,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:10,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:11:10,280 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:11:10,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:11:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:10,756 INFO L256 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:11:10,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:10,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 10:11:10,778 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:11:10,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566490569] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:10,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:11:10,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-12-02 10:11:10,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800991370] [2024-12-02 10:11:10,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:10,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:11:10,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:10,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:11:10,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:11:10,780 INFO L87 Difference]: Start difference. First operand 106 states and 130 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) [2024-12-02 10:11:10,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:10,806 INFO L93 Difference]: Finished difference Result 106 states and 130 transitions. [2024-12-02 10:11:10,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:11:10,807 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 [2024-12-02 10:11:10,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:10,808 INFO L225 Difference]: With dead ends: 106 [2024-12-02 10:11:10,808 INFO L226 Difference]: Without dead ends: 104 [2024-12-02 10:11:10,808 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 [2024-12-02 10:11:10,809 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 75 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 160 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 [2024-12-02 10:11:10,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 160 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:11:10,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-12-02 10:11:10,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-12-02 10:11:10,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 82 states have (on average 1.3780487804878048) internal successors, (113), 94 states have internal predecessors, (113), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:10,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2024-12-02 10:11:10,817 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 14 [2024-12-02 10:11:10,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:10,818 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2024-12-02 10:11:10,819 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) [2024-12-02 10:11:10,819 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2024-12-02 10:11:10,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-02 10:11:10,819 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:10,819 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:11:10,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:11:11,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:11,020 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:11,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:11,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1450578497, now seen corresponding path program 1 times [2024-12-02 10:11:11,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:11,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995233416] [2024-12-02 10:11:11,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:11,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:11,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:11:11,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:11,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995233416] [2024-12-02 10:11:11,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995233416] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:11,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585802875] [2024-12-02 10:11:11,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:11,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:11,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:11:11,417 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:11:11,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:11:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:11,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 1199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:11:11,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:11,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:11:11,891 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:11:11,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:11:11,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585802875] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:11:11,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:11:11,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-12-02 10:11:11,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350392908] [2024-12-02 10:11:11,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:11:11,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:11:11,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:11,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:11:11,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:11:11,921 INFO L87 Difference]: Start difference. First operand 104 states and 128 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) [2024-12-02 10:11:11,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:11,965 INFO L93 Difference]: Finished difference Result 213 states and 263 transitions. [2024-12-02 10:11:11,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:11:11,965 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 [2024-12-02 10:11:11,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:11,966 INFO L225 Difference]: With dead ends: 213 [2024-12-02 10:11:11,966 INFO L226 Difference]: Without dead ends: 116 [2024-12-02 10:11:11,967 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 [2024-12-02 10:11:11,968 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 6 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:11,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 483 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:11:11,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-12-02 10:11:11,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-12-02 10:11:11,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 94 states have (on average 1.3297872340425532) internal successors, (125), 106 states have internal predecessors, (125), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:11,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 140 transitions. [2024-12-02 10:11:11,976 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 140 transitions. Word has length 15 [2024-12-02 10:11:11,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:11,977 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 140 transitions. [2024-12-02 10:11:11,977 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) [2024-12-02 10:11:11,977 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 140 transitions. [2024-12-02 10:11:11,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-02 10:11:11,978 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:11,978 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:11:11,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:11:12,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:12,178 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:12,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:12,179 INFO L85 PathProgramCache]: Analyzing trace with hash -747718483, now seen corresponding path program 2 times [2024-12-02 10:11:12,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:12,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448008382] [2024-12-02 10:11:12,179 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:11:12,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:12,299 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 10:11:12,299 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:11:12,538 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 10:11:12,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:12,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448008382] [2024-12-02 10:11:12,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448008382] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:12,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:11:12,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:11:12,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711369915] [2024-12-02 10:11:12,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:12,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:11:12,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:12,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:11:12,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:11:12,539 INFO L87 Difference]: Start difference. First operand 116 states and 140 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) [2024-12-02 10:11:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:12,606 INFO L93 Difference]: Finished difference Result 116 states and 140 transitions. [2024-12-02 10:11:12,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:11:12,607 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 [2024-12-02 10:11:12,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:12,608 INFO L225 Difference]: With dead ends: 116 [2024-12-02 10:11:12,608 INFO L226 Difference]: Without dead ends: 114 [2024-12-02 10:11:12,608 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 [2024-12-02 10:11:12,609 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 74 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:12,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 366 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:11:12,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-12-02 10:11:12,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-12-02 10:11:12,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 94 states have (on average 1.3085106382978724) internal successors, (123), 104 states have internal predecessors, (123), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:12,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 138 transitions. [2024-12-02 10:11:12,616 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 138 transitions. Word has length 27 [2024-12-02 10:11:12,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:12,617 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 138 transitions. [2024-12-02 10:11:12,617 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) [2024-12-02 10:11:12,617 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 138 transitions. [2024-12-02 10:11:12,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-12-02 10:11:12,617 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:12,618 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] [2024-12-02 10:11:12,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:11:12,618 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:12,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:12,618 INFO L85 PathProgramCache]: Analyzing trace with hash -154286744, now seen corresponding path program 1 times [2024-12-02 10:11:12,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:12,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534961888] [2024-12-02 10:11:12,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:12,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:12,993 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 10:11:12,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:12,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534961888] [2024-12-02 10:11:12,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534961888] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:12,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:11:12,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:11:12,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470902869] [2024-12-02 10:11:12,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:12,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:11:12,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:12,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:11:12,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:11:12,995 INFO L87 Difference]: Start difference. First operand 114 states and 138 transitions. Second operand has 3 states, 2 states have (on average 10.0) 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) [2024-12-02 10:11:13,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:13,026 INFO L93 Difference]: Finished difference Result 207 states and 256 transitions. [2024-12-02 10:11:13,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:11:13,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) 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 [2024-12-02 10:11:13,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:13,027 INFO L225 Difference]: With dead ends: 207 [2024-12-02 10:11:13,028 INFO L226 Difference]: Without dead ends: 118 [2024-12-02 10:11:13,028 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 [2024-12-02 10:11:13,028 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 1 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 236 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 [2024-12-02 10:11:13,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 236 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:11:13,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-12-02 10:11:13,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-12-02 10:11:13,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 98 states have (on average 1.2959183673469388) internal successors, (127), 108 states have internal predecessors, (127), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:13,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 142 transitions. [2024-12-02 10:11:13,037 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 142 transitions. Word has length 34 [2024-12-02 10:11:13,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:13,037 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 142 transitions. [2024-12-02 10:11:13,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) 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) [2024-12-02 10:11:13,037 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 142 transitions. [2024-12-02 10:11:13,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-12-02 10:11:13,038 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:13,038 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] [2024-12-02 10:11:13,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:11:13,038 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:13,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:13,039 INFO L85 PathProgramCache]: Analyzing trace with hash 304104525, now seen corresponding path program 1 times [2024-12-02 10:11:13,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:13,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262852333] [2024-12-02 10:11:13,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:13,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:13,347 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 10:11:13,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:13,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262852333] [2024-12-02 10:11:13,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262852333] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:13,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:11:13,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:11:13,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289920253] [2024-12-02 10:11:13,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:13,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:11:13,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:13,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:11:13,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:11:13,349 INFO L87 Difference]: Start difference. First operand 118 states and 142 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) [2024-12-02 10:11:13,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:13,370 INFO L93 Difference]: Finished difference Result 124 states and 148 transitions. [2024-12-02 10:11:13,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:11:13,371 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 [2024-12-02 10:11:13,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:13,372 INFO L225 Difference]: With dead ends: 124 [2024-12-02 10:11:13,372 INFO L226 Difference]: Without dead ends: 122 [2024-12-02 10:11:13,372 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 [2024-12-02 10:11:13,373 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 1 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 238 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 [2024-12-02 10:11:13,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 238 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:11:13,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-12-02 10:11:13,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-12-02 10:11:13,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 102 states have (on average 1.2843137254901962) internal successors, (131), 112 states have internal predecessors, (131), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:13,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 146 transitions. [2024-12-02 10:11:13,380 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 146 transitions. Word has length 36 [2024-12-02 10:11:13,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:13,380 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 146 transitions. [2024-12-02 10:11:13,380 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) [2024-12-02 10:11:13,380 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 146 transitions. [2024-12-02 10:11:13,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-02 10:11:13,381 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:13,381 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] [2024-12-02 10:11:13,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:11:13,381 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:13,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:13,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1497201886, now seen corresponding path program 1 times [2024-12-02 10:11:13,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:13,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821082650] [2024-12-02 10:11:13,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:13,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:13,683 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 10:11:13,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:13,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821082650] [2024-12-02 10:11:13,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821082650] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:13,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684632586] [2024-12-02 10:11:13,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:13,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:13,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:11:13,686 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:11:13,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:11:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:14,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 1384 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:11:14,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:14,342 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:11:14,343 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:11:14,466 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:11:14,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684632586] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:11:14,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:11:14,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-12-02 10:11:14,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433332990] [2024-12-02 10:11:14,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:11:14,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 10:11:14,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:14,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 10:11:14,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:11:14,468 INFO L87 Difference]: Start difference. First operand 122 states and 146 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) [2024-12-02 10:11:14,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:14,616 INFO L93 Difference]: Finished difference Result 248 states and 302 transitions. [2024-12-02 10:11:14,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:11:14,616 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 [2024-12-02 10:11:14,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:14,617 INFO L225 Difference]: With dead ends: 248 [2024-12-02 10:11:14,617 INFO L226 Difference]: Without dead ends: 145 [2024-12-02 10:11:14,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:11:14,619 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 7 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:14,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 558 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:11:14,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-12-02 10:11:14,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-12-02 10:11:14,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 126 states have (on average 1.2222222222222223) internal successors, (154), 135 states have internal predecessors, (154), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:14,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 169 transitions. [2024-12-02 10:11:14,628 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 169 transitions. Word has length 38 [2024-12-02 10:11:14,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:14,628 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 169 transitions. [2024-12-02 10:11:14,629 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) [2024-12-02 10:11:14,629 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 169 transitions. [2024-12-02 10:11:14,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 10:11:14,630 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:14,630 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] [2024-12-02 10:11:14,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:11:14,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:14,831 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:14,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:14,831 INFO L85 PathProgramCache]: Analyzing trace with hash -2123713720, now seen corresponding path program 1 times [2024-12-02 10:11:14,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:14,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502891675] [2024-12-02 10:11:14,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:14,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:15,222 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 10:11:15,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:15,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502891675] [2024-12-02 10:11:15,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502891675] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:15,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651322241] [2024-12-02 10:11:15,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:15,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:15,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:11:15,225 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:11:15,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:11:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:15,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 1481 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:11:15,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:15,741 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-12-02 10:11:15,741 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:11:15,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651322241] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:15,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:11:15,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-12-02 10:11:15,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305307521] [2024-12-02 10:11:15,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:15,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:11:15,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:15,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:11:15,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:11:15,743 INFO L87 Difference]: Start difference. First operand 145 states and 169 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) [2024-12-02 10:11:15,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:15,762 INFO L93 Difference]: Finished difference Result 145 states and 169 transitions. [2024-12-02 10:11:15,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:11:15,762 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 62 [2024-12-02 10:11:15,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:15,763 INFO L225 Difference]: With dead ends: 145 [2024-12-02 10:11:15,763 INFO L226 Difference]: Without dead ends: 144 [2024-12-02 10:11:15,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:11:15,764 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 2 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 223 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 [2024-12-02 10:11:15,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 223 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:11:15,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-12-02 10:11:15,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-12-02 10:11:15,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 126 states have (on average 1.2142857142857142) internal successors, (153), 134 states have internal predecessors, (153), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:15,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2024-12-02 10:11:15,771 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 62 [2024-12-02 10:11:15,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:15,772 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2024-12-02 10:11:15,772 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) [2024-12-02 10:11:15,772 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2024-12-02 10:11:15,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-02 10:11:15,773 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:15,773 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] [2024-12-02 10:11:15,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 10:11:15,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 10:11:15,973 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:15,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:15,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1410683045, now seen corresponding path program 1 times [2024-12-02 10:11:15,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:15,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835843914] [2024-12-02 10:11:15,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:15,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:16,257 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-12-02 10:11:16,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:16,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835843914] [2024-12-02 10:11:16,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835843914] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:16,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:11:16,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:11:16,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728119701] [2024-12-02 10:11:16,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:16,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:11:16,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:16,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:11:16,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:11:16,259 INFO L87 Difference]: Start difference. First operand 144 states and 168 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) [2024-12-02 10:11:16,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:16,279 INFO L93 Difference]: Finished difference Result 144 states and 168 transitions. [2024-12-02 10:11:16,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:11:16,279 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 [2024-12-02 10:11:16,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:16,281 INFO L225 Difference]: With dead ends: 144 [2024-12-02 10:11:16,281 INFO L226 Difference]: Without dead ends: 143 [2024-12-02 10:11:16,281 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 [2024-12-02 10:11:16,281 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 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 [2024-12-02 10:11:16,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:11:16,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-12-02 10:11:16,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 140. [2024-12-02 10:11:16,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 123 states have (on average 1.2113821138211383) internal successors, (149), 130 states have internal predecessors, (149), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:16,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 164 transitions. [2024-12-02 10:11:16,289 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 164 transitions. Word has length 63 [2024-12-02 10:11:16,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:16,289 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 164 transitions. [2024-12-02 10:11:16,289 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) [2024-12-02 10:11:16,289 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 164 transitions. [2024-12-02 10:11:16,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-02 10:11:16,290 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:16,290 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] [2024-12-02 10:11:16,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 10:11:16,290 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:16,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:16,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1410615519, now seen corresponding path program 1 times [2024-12-02 10:11:16,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:16,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526550986] [2024-12-02 10:11:16,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:16,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:16,620 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 10:11:16,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:16,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526550986] [2024-12-02 10:11:16,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526550986] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:16,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376310775] [2024-12-02 10:11:16,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:16,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:16,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:11:16,623 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:11:16,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 10:11:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:17,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 1482 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:11:17,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:17,143 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-12-02 10:11:17,143 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:11:17,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376310775] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:17,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:11:17,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-12-02 10:11:17,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432212610] [2024-12-02 10:11:17,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:17,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:11:17,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:17,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:11:17,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:11:17,144 INFO L87 Difference]: Start difference. First operand 140 states and 164 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) [2024-12-02 10:11:17,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:17,169 INFO L93 Difference]: Finished difference Result 151 states and 177 transitions. [2024-12-02 10:11:17,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:11:17,170 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 [2024-12-02 10:11:17,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:17,171 INFO L225 Difference]: With dead ends: 151 [2024-12-02 10:11:17,171 INFO L226 Difference]: Without dead ends: 150 [2024-12-02 10:11:17,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:11:17,171 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:17,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 228 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:11:17,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-12-02 10:11:17,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-12-02 10:11:17,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 133 states have (on average 1.2105263157894737) internal successors, (161), 140 states have internal predecessors, (161), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:17,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 176 transitions. [2024-12-02 10:11:17,178 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 176 transitions. Word has length 63 [2024-12-02 10:11:17,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:17,178 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 176 transitions. [2024-12-02 10:11:17,179 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) [2024-12-02 10:11:17,179 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 176 transitions. [2024-12-02 10:11:17,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 10:11:17,179 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:17,179 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] [2024-12-02 10:11:17,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 10:11:17,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 10:11:17,380 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:17,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:17,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1765674389, now seen corresponding path program 1 times [2024-12-02 10:11:17,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:17,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956319205] [2024-12-02 10:11:17,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:17,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:17,675 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 10:11:17,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:17,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956319205] [2024-12-02 10:11:17,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956319205] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:17,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55974374] [2024-12-02 10:11:17,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:17,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:17,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:11:17,677 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:11:17,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 10:11:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:18,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:11:18,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:18,211 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-12-02 10:11:18,211 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:11:18,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55974374] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:18,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:11:18,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2024-12-02 10:11:18,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792257474] [2024-12-02 10:11:18,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:18,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:11:18,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:18,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:11:18,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:11:18,212 INFO L87 Difference]: Start difference. First operand 150 states and 176 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) [2024-12-02 10:11:18,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:18,276 INFO L93 Difference]: Finished difference Result 203 states and 247 transitions. [2024-12-02 10:11:18,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:11:18,277 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 [2024-12-02 10:11:18,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:18,278 INFO L225 Difference]: With dead ends: 203 [2024-12-02 10:11:18,278 INFO L226 Difference]: Without dead ends: 192 [2024-12-02 10:11:18,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:11:18,278 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 56 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:18,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 383 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:11:18,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-12-02 10:11:18,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 152. [2024-12-02 10:11:18,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 135 states have (on average 1.2074074074074075) internal successors, (163), 142 states have internal predecessors, (163), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:18,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 178 transitions. [2024-12-02 10:11:18,284 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 178 transitions. Word has length 64 [2024-12-02 10:11:18,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:18,285 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 178 transitions. [2024-12-02 10:11:18,285 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) [2024-12-02 10:11:18,285 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 178 transitions. [2024-12-02 10:11:18,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 10:11:18,286 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:18,286 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] [2024-12-02 10:11:18,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 10:11:18,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 10:11:18,486 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:18,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:18,487 INFO L85 PathProgramCache]: Analyzing trace with hash 265366145, now seen corresponding path program 1 times [2024-12-02 10:11:18,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:18,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028849113] [2024-12-02 10:11:18,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:18,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:18,715 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 10:11:18,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:18,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028849113] [2024-12-02 10:11:18,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028849113] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:18,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:11:18,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:11:18,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654814954] [2024-12-02 10:11:18,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:18,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:11:18,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:18,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:11:18,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:11:18,716 INFO L87 Difference]: Start difference. First operand 152 states and 178 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-12-02 10:11:18,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:18,735 INFO L93 Difference]: Finished difference Result 165 states and 194 transitions. [2024-12-02 10:11:18,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:11:18,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 67 [2024-12-02 10:11:18,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:18,736 INFO L225 Difference]: With dead ends: 165 [2024-12-02 10:11:18,736 INFO L226 Difference]: Without dead ends: 154 [2024-12-02 10:11:18,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:11:18,737 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:18,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 354 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:11:18,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-12-02 10:11:18,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2024-12-02 10:11:18,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 137 states have (on average 1.2043795620437956) internal successors, (165), 144 states have internal predecessors, (165), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:18,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 180 transitions. [2024-12-02 10:11:18,743 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 180 transitions. Word has length 67 [2024-12-02 10:11:18,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:18,744 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 180 transitions. [2024-12-02 10:11:18,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-12-02 10:11:18,744 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 180 transitions. [2024-12-02 10:11:18,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-12-02 10:11:18,744 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:18,745 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, 1, 1, 1] [2024-12-02 10:11:18,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 10:11:18,745 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:18,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:18,745 INFO L85 PathProgramCache]: Analyzing trace with hash 449977130, now seen corresponding path program 1 times [2024-12-02 10:11:18,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:18,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877888025] [2024-12-02 10:11:18,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:18,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:19,017 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 10:11:19,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:19,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877888025] [2024-12-02 10:11:19,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877888025] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:19,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:11:19,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:11:19,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770715512] [2024-12-02 10:11:19,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:19,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:11:19,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:19,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:11:19,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:11:19,018 INFO L87 Difference]: Start difference. First operand 154 states and 180 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-12-02 10:11:19,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:19,039 INFO L93 Difference]: Finished difference Result 167 states and 196 transitions. [2024-12-02 10:11:19,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:11:19,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 71 [2024-12-02 10:11:19,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:19,041 INFO L225 Difference]: With dead ends: 167 [2024-12-02 10:11:19,041 INFO L226 Difference]: Without dead ends: 156 [2024-12-02 10:11:19,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:11:19,042 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:19,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 354 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:11:19,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-12-02 10:11:19,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-12-02 10:11:19,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 139 states have (on average 1.2014388489208634) internal successors, (167), 146 states have internal predecessors, (167), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:19,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 182 transitions. [2024-12-02 10:11:19,049 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 182 transitions. Word has length 71 [2024-12-02 10:11:19,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:19,050 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 182 transitions. [2024-12-02 10:11:19,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-12-02 10:11:19,050 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 182 transitions. [2024-12-02 10:11:19,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-12-02 10:11:19,050 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:19,051 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:11:19,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 10:11:19,051 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:19,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:19,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1665198177, now seen corresponding path program 1 times [2024-12-02 10:11:19,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:19,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085209255] [2024-12-02 10:11:19,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:19,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:19,452 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-12-02 10:11:19,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:19,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085209255] [2024-12-02 10:11:19,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085209255] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:19,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:11:19,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:11:19,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840209671] [2024-12-02 10:11:19,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:19,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:11:19,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:19,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:11:19,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:11:19,454 INFO L87 Difference]: Start difference. First operand 156 states and 182 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 10:11:19,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:19,493 INFO L93 Difference]: Finished difference Result 169 states and 196 transitions. [2024-12-02 10:11:19,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:11:19,494 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), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2024-12-02 10:11:19,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:19,495 INFO L225 Difference]: With dead ends: 169 [2024-12-02 10:11:19,495 INFO L226 Difference]: Without dead ends: 166 [2024-12-02 10:11:19,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:11:19,496 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 18 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:19,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 492 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:11:19,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-12-02 10:11:19,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 163. [2024-12-02 10:11:19,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 146 states have (on average 1.2054794520547945) internal successors, (176), 152 states have internal predecessors, (176), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:19,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 191 transitions. [2024-12-02 10:11:19,503 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 191 transitions. Word has length 73 [2024-12-02 10:11:19,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:19,503 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 191 transitions. [2024-12-02 10:11:19,503 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), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 10:11:19,504 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 191 transitions. [2024-12-02 10:11:19,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-12-02 10:11:19,504 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:19,504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:11:19,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 10:11:19,505 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:19,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:19,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1665200099, now seen corresponding path program 1 times [2024-12-02 10:11:19,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:19,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353944345] [2024-12-02 10:11:19,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:19,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:20,178 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-12-02 10:11:20,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:20,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353944345] [2024-12-02 10:11:20,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353944345] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:20,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097679438] [2024-12-02 10:11:20,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:20,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:20,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:11:20,180 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:11:20,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 10:11:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:20,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 1592 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 10:11:20,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:20,838 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-12-02 10:11:20,838 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:11:20,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097679438] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:20,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:11:20,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2024-12-02 10:11:20,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918043058] [2024-12-02 10:11:20,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:20,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:11:20,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:20,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:11:20,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:11:20,839 INFO L87 Difference]: Start difference. First operand 163 states and 191 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 10:11:20,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:20,927 INFO L93 Difference]: Finished difference Result 241 states and 290 transitions. [2024-12-02 10:11:20,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:11:20,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2024-12-02 10:11:20,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:20,929 INFO L225 Difference]: With dead ends: 241 [2024-12-02 10:11:20,929 INFO L226 Difference]: Without dead ends: 161 [2024-12-02 10:11:20,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:11:20,930 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 78 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:20,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 445 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:11:20,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-12-02 10:11:20,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2024-12-02 10:11:20,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 144 states have (on average 1.2013888888888888) internal successors, (173), 150 states have internal predecessors, (173), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:20,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 188 transitions. [2024-12-02 10:11:20,938 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 188 transitions. Word has length 73 [2024-12-02 10:11:20,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:20,939 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 188 transitions. [2024-12-02 10:11:20,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 10:11:20,939 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 188 transitions. [2024-12-02 10:11:20,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-12-02 10:11:20,939 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:20,939 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:11:20,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 10:11:21,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 10:11:21,140 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:21,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:21,140 INFO L85 PathProgramCache]: Analyzing trace with hash 964876439, now seen corresponding path program 1 times [2024-12-02 10:11:21,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:21,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926214090] [2024-12-02 10:11:21,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:21,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:21,399 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-12-02 10:11:21,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:21,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926214090] [2024-12-02 10:11:21,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926214090] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:21,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382481813] [2024-12-02 10:11:21,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:21,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:21,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:11:21,401 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:11:21,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 10:11:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:22,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 1556 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:11:22,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:22,097 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-12-02 10:11:22,097 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:11:22,126 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-12-02 10:11:22,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382481813] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:11:22,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:11:22,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-12-02 10:11:22,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879351877] [2024-12-02 10:11:22,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:11:22,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:11:22,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:22,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:11:22,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:11:22,128 INFO L87 Difference]: Start difference. First operand 161 states and 188 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) [2024-12-02 10:11:22,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:22,187 INFO L93 Difference]: Finished difference Result 290 states and 347 transitions. [2024-12-02 10:11:22,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:11:22,188 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 73 [2024-12-02 10:11:22,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:22,188 INFO L225 Difference]: With dead ends: 290 [2024-12-02 10:11:22,189 INFO L226 Difference]: Without dead ends: 185 [2024-12-02 10:11:22,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:11:22,189 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 6 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:22,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 574 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:11:22,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-12-02 10:11:22,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-12-02 10:11:22,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 168 states have (on average 1.1726190476190477) internal successors, (197), 174 states have internal predecessors, (197), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:22,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 212 transitions. [2024-12-02 10:11:22,200 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 212 transitions. Word has length 73 [2024-12-02 10:11:22,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:22,201 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 212 transitions. [2024-12-02 10:11:22,201 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) [2024-12-02 10:11:22,201 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 212 transitions. [2024-12-02 10:11:22,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 10:11:22,201 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:22,202 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] [2024-12-02 10:11:22,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-02 10:11:22,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 10:11:22,402 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:22,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:22,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1622147101, now seen corresponding path program 1 times [2024-12-02 10:11:22,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:22,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072455756] [2024-12-02 10:11:22,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:22,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:22,643 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-12-02 10:11:22,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:22,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072455756] [2024-12-02 10:11:22,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072455756] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:22,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824869530] [2024-12-02 10:11:22,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:22,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:22,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:11:22,645 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:11:22,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 10:11:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:23,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 1603 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:11:23,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:23,385 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-12-02 10:11:23,385 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:11:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-12-02 10:11:23,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824869530] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:11:23,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:11:23,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-12-02 10:11:23,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498300340] [2024-12-02 10:11:23,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:11:23,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 10:11:23,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:23,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 10:11:23,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:11:23,467 INFO L87 Difference]: Start difference. First operand 185 states and 212 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) [2024-12-02 10:11:23,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:23,567 INFO L93 Difference]: Finished difference Result 349 states and 413 transitions. [2024-12-02 10:11:23,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:11:23,567 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 [2024-12-02 10:11:23,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:23,569 INFO L225 Difference]: With dead ends: 349 [2024-12-02 10:11:23,569 INFO L226 Difference]: Without dead ends: 232 [2024-12-02 10:11:23,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:11:23,570 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 7 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:23,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 548 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:11:23,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-12-02 10:11:23,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2024-12-02 10:11:23,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 216 states have (on average 1.1296296296296295) internal successors, (244), 221 states have internal predecessors, (244), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:23,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 259 transitions. [2024-12-02 10:11:23,577 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 259 transitions. Word has length 86 [2024-12-02 10:11:23,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:23,577 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 259 transitions. [2024-12-02 10:11:23,577 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) [2024-12-02 10:11:23,577 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 259 transitions. [2024-12-02 10:11:23,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 10:11:23,578 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:23,578 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] [2024-12-02 10:11:23,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 10:11:23,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:23,779 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:23,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:23,779 INFO L85 PathProgramCache]: Analyzing trace with hash -69916525, now seen corresponding path program 1 times [2024-12-02 10:11:23,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:23,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422558552] [2024-12-02 10:11:23,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:23,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:24,029 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-12-02 10:11:24,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:24,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422558552] [2024-12-02 10:11:24,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422558552] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:24,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887862924] [2024-12-02 10:11:24,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:24,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:24,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:11:24,031 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:11:24,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 10:11:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:24,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 1742 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:11:24,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:24,709 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-12-02 10:11:24,709 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:11:24,738 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-12-02 10:11:24,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887862924] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:11:24,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:11:24,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-12-02 10:11:24,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363021463] [2024-12-02 10:11:24,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:11:24,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:11:24,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:24,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:11:24,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:11:24,740 INFO L87 Difference]: Start difference. First operand 232 states and 259 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) [2024-12-02 10:11:24,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:24,774 INFO L93 Difference]: Finished difference Result 245 states and 274 transitions. [2024-12-02 10:11:24,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:11:24,774 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 [2024-12-02 10:11:24,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:24,776 INFO L225 Difference]: With dead ends: 245 [2024-12-02 10:11:24,776 INFO L226 Difference]: Without dead ends: 244 [2024-12-02 10:11:24,776 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 [2024-12-02 10:11:24,777 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:24,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:11:24,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-12-02 10:11:24,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2024-12-02 10:11:24,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 228 states have (on average 1.1228070175438596) internal successors, (256), 233 states have internal predecessors, (256), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:24,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 271 transitions. [2024-12-02 10:11:24,787 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 271 transitions. Word has length 111 [2024-12-02 10:11:24,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:24,788 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 271 transitions. [2024-12-02 10:11:24,788 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) [2024-12-02 10:11:24,788 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 271 transitions. [2024-12-02 10:11:24,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 10:11:24,789 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:24,789 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:11:24,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 10:11:24,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:24,990 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:24,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:24,990 INFO L85 PathProgramCache]: Analyzing trace with hash 664358799, now seen corresponding path program 1 times [2024-12-02 10:11:24,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:24,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990236919] [2024-12-02 10:11:24,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:24,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-12-02 10:11:27,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:27,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990236919] [2024-12-02 10:11:27,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990236919] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:27,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263996769] [2024-12-02 10:11:27,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:27,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:27,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:11:27,379 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:11:27,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 10:11:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:28,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 1873 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 10:11:28,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:28,141 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 10:11:28,142 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 19 treesize of output 16 [2024-12-02 10:11:28,405 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-12-02 10:11:28,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2024-12-02 10:11:28,490 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 10:11:28,491 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 19 treesize of output 16 [2024-12-02 10:11:28,520 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-12-02 10:11:28,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2024-12-02 10:11:28,857 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 10:11:29,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:11:29,068 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 17 treesize of output 12 [2024-12-02 10:11:29,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 16 treesize of output 8 [2024-12-02 10:11:29,137 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2024-12-02 10:11:29,137 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:11:29,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263996769] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:11:29,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:11:29,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 24 [2024-12-02 10:11:29,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76129926] [2024-12-02 10:11:29,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:11:29,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:11:29,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:11:29,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:11:29,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-12-02 10:11:29,138 INFO L87 Difference]: Start difference. First operand 244 states and 271 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 10:11:32,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:11:32,816 INFO L93 Difference]: Finished difference Result 282 states and 316 transitions. [2024-12-02 10:11:32,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:11:32,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 119 [2024-12-02 10:11:32,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:11:32,819 INFO L225 Difference]: With dead ends: 282 [2024-12-02 10:11:32,819 INFO L226 Difference]: Without dead ends: 276 [2024-12-02 10:11:32,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 111 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2024-12-02 10:11:32,819 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 115 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:11:32,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 777 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-12-02 10:11:32,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-12-02 10:11:32,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 244. [2024-12-02 10:11:32,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 228 states have (on average 1.118421052631579) internal successors, (255), 233 states have internal predecessors, (255), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:11:32,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 270 transitions. [2024-12-02 10:11:32,831 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 270 transitions. Word has length 119 [2024-12-02 10:11:32,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:11:32,831 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 270 transitions. [2024-12-02 10:11:32,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 10:11:32,831 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 270 transitions. [2024-12-02 10:11:32,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:11:32,832 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:11:32,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:11:32,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-12-02 10:11:33,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:33,033 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [execvpErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, execvpErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 31 more)] === [2024-12-02 10:11:33,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:11:33,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1216050548, now seen corresponding path program 1 times [2024-12-02 10:11:33,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:11:33,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204936713] [2024-12-02 10:11:33,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:33,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:11:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:39,300 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2024-12-02 10:11:39,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:39,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204936713] [2024-12-02 10:11:39,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204936713] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:39,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248427093] [2024-12-02 10:11:39,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:11:39,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:39,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:11:39,302 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:11:39,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 10:11:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:11:40,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 1880 conjuncts, 85 conjuncts are in the unsatisfiable core [2024-12-02 10:11:40,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:11:40,054 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 [2024-12-02 10:11:40,090 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-02 10:11:40,102 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-02 10:11:40,126 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 10:11:40,127 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 19 treesize of output 16 [2024-12-02 10:11:40,245 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-02 10:11:40,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2024-12-02 10:11:40,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:11:40,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:11:40,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 209 treesize of output 101 [2024-12-02 10:11:40,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:11:40,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:11:40,283 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 0 case distinctions, treesize of input 52 treesize of output 54 [2024-12-02 10:11:40,289 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 50 treesize of output 33 [2024-12-02 10:11:40,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:11:40,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:11:40,313 INFO L349 Elim1Store]: treesize reduction 87, result has 1.1 percent of original size [2024-12-02 10:11:40,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 293 treesize of output 137 [2024-12-02 10:11:40,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:11:40,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:11:40,324 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 [2024-12-02 10:11:40,338 INFO L349 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2024-12-02 10:11:40,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 55 [2024-12-02 10:11:40,344 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-12-02 10:11:40,358 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 10:11:40,359 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 10:11:40,363 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-12-02 10:11:40,368 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 10:11:40,369 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 10:11:40,372 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-12-02 10:11:40,441 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-12-02 10:11:40,441 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 [2024-12-02 10:11:40,446 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 35 treesize of output 20 [2024-12-02 10:11:40,533 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-12-02 10:11:40,533 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 [2024-12-02 10:11:40,538 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 35 treesize of output 20 [2024-12-02 10:11:40,625 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-12-02 10:11:40,625 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 [2024-12-02 10:11:40,630 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 35 treesize of output 20 [2024-12-02 10:11:40,727 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-12-02 10:11:40,727 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 [2024-12-02 10:11:40,737 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 35 treesize of output 20 [2024-12-02 10:11:40,812 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-12-02 10:11:40,812 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 [2024-12-02 10:11:40,818 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 35 treesize of output 20 [2024-12-02 10:11:40,892 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-12-02 10:11:40,892 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 [2024-12-02 10:11:40,901 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 35 treesize of output 20 [2024-12-02 10:11:40,984 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-12-02 10:11:40,984 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 [2024-12-02 10:11:40,994 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 35 treesize of output 20 [2024-12-02 10:11:41,079 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-12-02 10:11:41,079 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 [2024-12-02 10:11:41,086 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 35 treesize of output 20 [2024-12-02 10:11:41,155 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-12-02 10:11:41,155 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 [2024-12-02 10:11:41,159 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 35 treesize of output 20 [2024-12-02 10:11:41,236 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-12-02 10:11:41,237 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 [2024-12-02 10:11:41,245 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 35 treesize of output 20 [2024-12-02 10:11:41,449 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2024-12-02 10:11:41,449 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:14:54,244 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-12-02 10:14:54,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-12-02 10:14:54,245 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-12-02 10:14:54,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 10:14:54,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:14:54,447 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:947) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:555) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 46 more [2024-12-02 10:14:54,451 INFO L158 Benchmark]: Toolchain (without parser) took 230185.54ms. Allocated memory was 117.4MB in the beginning and 385.9MB in the end (delta: 268.4MB). Free memory was 88.0MB in the beginning and 265.8MB in the end (delta: -177.8MB). Peak memory consumption was 83.1MB. Max. memory is 16.1GB. [2024-12-02 10:14:54,451 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:14:54,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1319.94ms. Allocated memory is still 117.4MB. Free memory was 87.7MB in the beginning and 53.1MB in the end (delta: 34.7MB). Peak memory consumption was 72.8MB. Max. memory is 16.1GB. [2024-12-02 10:14:54,452 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.73ms. Allocated memory is still 117.4MB. Free memory was 52.9MB in the beginning and 44.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:14:54,452 INFO L158 Benchmark]: Boogie Preprocessor took 112.10ms. Allocated memory is still 117.4MB. Free memory was 44.1MB in the beginning and 73.4MB in the end (delta: -29.3MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2024-12-02 10:14:54,452 INFO L158 Benchmark]: RCFGBuilder took 1661.90ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 51.5MB in the end (delta: 21.9MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2024-12-02 10:14:54,452 INFO L158 Benchmark]: TraceAbstraction took 227001.36ms. Allocated memory was 117.4MB in the beginning and 385.9MB in the end (delta: 268.4MB). Free memory was 51.5MB in the beginning and 265.8MB in the end (delta: -214.3MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2024-12-02 10:14:54,454 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1319.94ms. Allocated memory is still 117.4MB. Free memory was 87.7MB in the beginning and 53.1MB in the end (delta: 34.7MB). Peak memory consumption was 72.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.73ms. Allocated memory is still 117.4MB. Free memory was 52.9MB in the beginning and 44.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 112.10ms. Allocated memory is still 117.4MB. Free memory was 44.1MB in the beginning and 73.4MB in the end (delta: -29.3MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * RCFGBuilder took 1661.90ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 51.5MB in the end (delta: 21.9MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. * TraceAbstraction took 227001.36ms. Allocated memory was 117.4MB in the beginning and 385.9MB in the end (delta: 268.4MB). Free memory was 51.5MB in the beginning and 265.8MB in the end (delta: -214.3MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/chroot-incomplete-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1 --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 ddcc9d247afe7ee578ac42a6235418dbb1180c16aae89db83ebb72b439e4993a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:14:56,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:14:56,213 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-12-02 10:14:56,218 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:14:56,218 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:14:56,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-12-02 10:14:56,239 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:14:56,240 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:14:56,240 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:14:56,240 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:14:56,240 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:14:56,241 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:14:56,241 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:14:56,241 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:14:56,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:14:56,241 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:14:56,242 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:14:56,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:14:56,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:14:56,242 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:14:56,242 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:14:56,242 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:14:56,242 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 10:14:56,242 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 10:14:56,242 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 10:14:56,242 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 10:14:56,243 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 10:14:56,243 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:14:56,243 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:14:56,243 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:14:56,243 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:14:56,243 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:14:56,243 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:14:56,243 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:14:56,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:14:56,243 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:14:56,244 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:14:56,244 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:14:56,244 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:14:56,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:14:56,244 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:14:56,244 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:14:56,244 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:14:56,244 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:14:56,244 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 10:14:56,244 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 10:14:56,245 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:14:56,245 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:14:56,245 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:14:56,245 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:14:56,245 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_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1 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 -> ddcc9d247afe7ee578ac42a6235418dbb1180c16aae89db83ebb72b439e4993a [2024-12-02 10:14:56,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:14:56,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:14:56,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:14:56,467 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:14:56,467 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:14:56,469 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/busybox-1.22.0/chroot-incomplete-2.i [2024-12-02 10:14:59,242 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/data/4ee965a22/edcd1784382a4d24999be368ae8cd1f7/FLAGe4b4e7966 [2024-12-02 10:14:59,580 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:14:59,581 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/sv-benchmarks/c/busybox-1.22.0/chroot-incomplete-2.i [2024-12-02 10:14:59,606 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/data/4ee965a22/edcd1784382a4d24999be368ae8cd1f7/FLAGe4b4e7966 [2024-12-02 10:14:59,620 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/data/4ee965a22/edcd1784382a4d24999be368ae8cd1f7 [2024-12-02 10:14:59,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:14:59,624 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:14:59,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:14:59,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:14:59,630 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:14:59,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:14:59" (1/1) ... [2024-12-02 10:14:59,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2834d647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:14:59, skipping insertion in model container [2024-12-02 10:14:59,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:14:59" (1/1) ... [2024-12-02 10:14:59,671 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:15:00,494 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,496 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,497 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,498 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,500 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,500 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,502 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,502 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,503 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,507 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,508 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,511 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,512 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,519 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,519 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,521 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,522 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,523 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,549 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,558 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:15:00,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:15:00,595 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:15:00,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:15:00,851 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2024-12-02 10:15:00,859 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:15:00,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:00 WrapperNode [2024-12-02 10:15:00,860 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:15:00,861 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:15:00,861 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:15:00,861 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:15:00,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:00" (1/1) ... [2024-12-02 10:15:00,898 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:00" (1/1) ... [2024-12-02 10:15:00,952 INFO L138 Inliner]: procedures = 626, calls = 586, calls flagged for inlining = 25, calls inlined = 23, statements flattened = 981 [2024-12-02 10:15:00,952 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:15:00,953 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:15:00,953 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:15:00,953 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:15:00,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:00" (1/1) ... [2024-12-02 10:15:00,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:00" (1/1) ... [2024-12-02 10:15:00,973 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:00" (1/1) ... [2024-12-02 10:15:00,993 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-12-02 10:15:00,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:00" (1/1) ... [2024-12-02 10:15:00,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:00" (1/1) ... [2024-12-02 10:15:01,033 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:00" (1/1) ... [2024-12-02 10:15:01,037 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:00" (1/1) ... [2024-12-02 10:15:01,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:00" (1/1) ... [2024-12-02 10:15:01,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:00" (1/1) ... [2024-12-02 10:15:01,061 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:00" (1/1) ... [2024-12-02 10:15:01,072 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:15:01,073 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:15:01,073 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:15:01,073 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:15:01,074 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:00" (1/1) ... [2024-12-02 10:15:01,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:15:01,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:01,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:15:01,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:15:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure execvp [2024-12-02 10:15:01,131 INFO L138 BoogieDeclarations]: Found implementation of procedure execvp [2024-12-02 10:15:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 10:15:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2024-12-02 10:15:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-02 10:15:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-12-02 10:15:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 10:15:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:15:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-02 10:15:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2024-12-02 10:15:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2024-12-02 10:15:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2024-12-02 10:15:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:15:01,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:15:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-12-02 10:15:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-12-02 10:15:01,132 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-12-02 10:15:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-12-02 10:15:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-12-02 10:15:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-12-02 10:15:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2024-12-02 10:15:01,133 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2024-12-02 10:15:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 10:15:01,133 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 10:15:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 10:15:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-02 10:15:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-12-02 10:15:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-12-02 10:15:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-12-02 10:15:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2024-12-02 10:15:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2024-12-02 10:15:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2024-12-02 10:15:01,480 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:15:01,482 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:15:07,948 INFO L? ?]: Removed 261 outVars from TransFormulas that were not future-live. [2024-12-02 10:15:07,948 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:15:07,960 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:15:07,961 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2024-12-02 10:15:07,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:15:07 BoogieIcfgContainer [2024-12-02 10:15:07,961 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:15:07,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:15:07,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:15:07,968 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:15:07,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:14:59" (1/3) ... [2024-12-02 10:15:07,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d48174d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:15:07, skipping insertion in model container [2024-12-02 10:15:07,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:15:00" (2/3) ... [2024-12-02 10:15:07,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d48174d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:15:07, skipping insertion in model container [2024-12-02 10:15:07,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:15:07" (3/3) ... [2024-12-02 10:15:07,970 INFO L128 eAbstractionObserver]: Analyzing ICFG chroot-incomplete-2.i [2024-12-02 10:15:07,984 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:15:07,987 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chroot-incomplete-2.i that has 5 procedures, 197 locations, 1 initial locations, 12 loop locations, and 34 error locations. [2024-12-02 10:15:08,038 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:15:08,049 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;@4aa0f91d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:15:08,050 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-12-02 10:15:08,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 197 states, 145 states have (on average 1.5862068965517242) internal successors, (230), 182 states have internal predecessors, (230), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 10:15:08,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-02 10:15:08,059 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:08,059 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 10:15:08,060 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_perror_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-12-02 10:15:08,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:08,064 INFO L85 PathProgramCache]: Analyzing trace with hash 274907496, now seen corresponding path program 1 times [2024-12-02 10:15:08,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:15:08,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [589117725] [2024-12-02 10:15:08,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:08,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:08,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:08,079 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:15:08,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:15:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:09,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 10:15:09,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:15:09,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:09,083 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:15:09,083 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:15:09,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589117725] [2024-12-02 10:15:09,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589117725] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:09,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:09,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 10:15:09,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027761993] [2024-12-02 10:15:09,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:09,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 10:15:09,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:15:09,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 10:15:09,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:15:09,107 INFO L87 Difference]: Start difference. First operand has 197 states, 145 states have (on average 1.5862068965517242) internal successors, (230), 182 states have internal predecessors, (230), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 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) [2024-12-02 10:15:09,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:09,139 INFO L93 Difference]: Finished difference Result 294 states and 400 transitions. [2024-12-02 10:15:09,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 10:15:09,141 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 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 [2024-12-02 10:15:09,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:09,147 INFO L225 Difference]: With dead ends: 294 [2024-12-02 10:15:09,147 INFO L226 Difference]: Without dead ends: 99 [2024-12-02 10:15:09,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:15:09,153 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:09,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:15:09,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-12-02 10:15:09,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-12-02 10:15:09,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 80 states have (on average 1.35) internal successors, (108), 90 states have internal predecessors, (108), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:15:09,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 123 transitions. [2024-12-02 10:15:09,186 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 123 transitions. Word has length 5 [2024-12-02 10:15:09,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:09,186 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 123 transitions. [2024-12-02 10:15:09,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 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) [2024-12-02 10:15:09,187 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 123 transitions. [2024-12-02 10:15:09,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-02 10:15:09,187 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:09,187 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 10:15:09,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:15:09,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:09,388 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_perror_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-12-02 10:15:09,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:09,389 INFO L85 PathProgramCache]: Analyzing trace with hash -67801912, now seen corresponding path program 1 times [2024-12-02 10:15:09,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:15:09,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2027880066] [2024-12-02 10:15:09,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:09,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:09,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:09,392 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:15:09,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:15:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:10,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:15:10,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:15:10,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:10,467 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:15:10,467 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:15:10,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027880066] [2024-12-02 10:15:10,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027880066] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:10,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:10,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:15:10,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560428168] [2024-12-02 10:15:10,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:10,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:15:10,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:15:10,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:15:10,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:15:10,469 INFO L87 Difference]: Start difference. First operand 99 states and 123 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-12-02 10:15:10,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:10,570 INFO L93 Difference]: Finished difference Result 196 states and 244 transitions. [2024-12-02 10:15:10,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:15:10,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-12-02 10:15:10,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:10,572 INFO L225 Difference]: With dead ends: 196 [2024-12-02 10:15:10,572 INFO L226 Difference]: Without dead ends: 103 [2024-12-02 10:15:10,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:15:10,573 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:10,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:15:10,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-12-02 10:15:10,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-12-02 10:15:10,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 84 states have (on average 1.3333333333333333) internal successors, (112), 94 states have internal predecessors, (112), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:15:10,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 127 transitions. [2024-12-02 10:15:10,583 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 127 transitions. Word has length 6 [2024-12-02 10:15:10,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:10,583 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 127 transitions. [2024-12-02 10:15:10,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-12-02 10:15:10,583 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 127 transitions. [2024-12-02 10:15:10,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-02 10:15:10,584 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:10,584 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2024-12-02 10:15:10,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:15:10,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:10,784 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_perror_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-12-02 10:15:10,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:10,785 INFO L85 PathProgramCache]: Analyzing trace with hash -152247666, now seen corresponding path program 1 times [2024-12-02 10:15:10,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:15:10,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [87078685] [2024-12-02 10:15:10,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:10,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:10,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:10,788 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:15:10,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:15:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:11,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:15:11,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:15:11,981 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:11,981 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:15:12,198 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:15:12,198 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:15:12,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87078685] [2024-12-02 10:15:12,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87078685] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:15:12,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:15:12,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-12-02 10:15:12,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937841217] [2024-12-02 10:15:12,199 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:15:12,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:15:12,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:15:12,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:15:12,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:15:12,200 INFO L87 Difference]: Start difference. First operand 103 states and 127 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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) [2024-12-02 10:15:12,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:12,482 INFO L93 Difference]: Finished difference Result 200 states and 250 transitions. [2024-12-02 10:15:12,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:15:12,482 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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 [2024-12-02 10:15:12,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:12,483 INFO L225 Difference]: With dead ends: 200 [2024-12-02 10:15:12,483 INFO L226 Difference]: Without dead ends: 107 [2024-12-02 10:15:12,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:12,484 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:12,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 462 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:12,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-12-02 10:15:12,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 103. [2024-12-02 10:15:12,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 85 states have (on average 1.3176470588235294) internal successors, (112), 94 states have internal predecessors, (112), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:15:12,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 127 transitions. [2024-12-02 10:15:12,493 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 127 transitions. Word has length 10 [2024-12-02 10:15:12,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:12,493 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 127 transitions. [2024-12-02 10:15:12,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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) [2024-12-02 10:15:12,494 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 127 transitions. [2024-12-02 10:15:12,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-02 10:15:12,494 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:12,495 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:12,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:15:12,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:12,695 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_perror_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-12-02 10:15:12,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:12,696 INFO L85 PathProgramCache]: Analyzing trace with hash -634988737, now seen corresponding path program 1 times [2024-12-02 10:15:12,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:15:12,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [967097173] [2024-12-02 10:15:12,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:12,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:12,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:12,698 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:15:12,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:15:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:13,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:15:13,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:15:13,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:15:13,831 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:15:13,831 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:15:13,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967097173] [2024-12-02 10:15:13,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967097173] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:13,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:13,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:15:13,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583968761] [2024-12-02 10:15:13,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:13,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:15:13,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:15:13,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:15:13,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:15:13,833 INFO L87 Difference]: Start difference. First operand 103 states and 127 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) [2024-12-02 10:15:14,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:14,209 INFO L93 Difference]: Finished difference Result 103 states and 127 transitions. [2024-12-02 10:15:14,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:15:14,210 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 19 [2024-12-02 10:15:14,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:14,211 INFO L225 Difference]: With dead ends: 103 [2024-12-02 10:15:14,211 INFO L226 Difference]: Without dead ends: 101 [2024-12-02 10:15:14,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:15:14,211 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 70 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:14,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 350 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:15:14,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-12-02 10:15:14,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-12-02 10:15:14,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 85 states have (on average 1.2941176470588236) internal successors, (110), 92 states have internal predecessors, (110), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:15:14,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 125 transitions. [2024-12-02 10:15:14,217 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 125 transitions. Word has length 19 [2024-12-02 10:15:14,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:14,218 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 125 transitions. [2024-12-02 10:15:14,218 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) [2024-12-02 10:15:14,218 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 125 transitions. [2024-12-02 10:15:14,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-02 10:15:14,219 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:14,219 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:14,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:15:14,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:14,419 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_perror_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-12-02 10:15:14,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:14,420 INFO L85 PathProgramCache]: Analyzing trace with hash -685009071, now seen corresponding path program 1 times [2024-12-02 10:15:14,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:15:14,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [734797141] [2024-12-02 10:15:14,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:14,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:14,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:14,422 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:15:14,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:15:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:15,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:15:15,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:15:15,424 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:15:15,424 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:15:15,424 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:15:15,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734797141] [2024-12-02 10:15:15,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734797141] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:15,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:15,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:15:15,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598895089] [2024-12-02 10:15:15,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:15,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:15:15,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:15:15,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:15:15,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:15:15,426 INFO L87 Difference]: Start difference. First operand 101 states and 125 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-12-02 10:15:15,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:15,668 INFO L93 Difference]: Finished difference Result 112 states and 138 transitions. [2024-12-02 10:15:15,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:15:15,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 [2024-12-02 10:15:15,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:15,669 INFO L225 Difference]: With dead ends: 112 [2024-12-02 10:15:15,669 INFO L226 Difference]: Without dead ends: 111 [2024-12-02 10:15:15,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:15:15,670 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 5 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:15,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 224 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:15,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-12-02 10:15:15,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-12-02 10:15:15,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 94 states have (on average 1.297872340425532) internal successors, (122), 101 states have internal predecessors, (122), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:15:15,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 137 transitions. [2024-12-02 10:15:15,676 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 137 transitions. Word has length 27 [2024-12-02 10:15:15,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:15,676 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 137 transitions. [2024-12-02 10:15:15,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-12-02 10:15:15,676 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 137 transitions. [2024-12-02 10:15:15,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-02 10:15:15,677 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:15,677 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:15,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 10:15:15,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:15,877 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_perror_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-12-02 10:15:15,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:15,878 INFO L85 PathProgramCache]: Analyzing trace with hash -685076597, now seen corresponding path program 1 times [2024-12-02 10:15:15,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:15:15,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [341549150] [2024-12-02 10:15:15,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:15,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:15,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:15,880 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:15:15,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 10:15:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:16,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:15:16,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:15:16,854 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:15:16,854 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:15:16,854 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:15:16,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341549150] [2024-12-02 10:15:16,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341549150] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:16,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:16,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:15:16,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697414572] [2024-12-02 10:15:16,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:16,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:15:16,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:15:16,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:15:16,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:15:16,855 INFO L87 Difference]: Start difference. First operand 110 states and 137 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-12-02 10:15:16,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:16,959 INFO L93 Difference]: Finished difference Result 205 states and 258 transitions. [2024-12-02 10:15:16,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:15:16,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 [2024-12-02 10:15:16,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:16,961 INFO L225 Difference]: With dead ends: 205 [2024-12-02 10:15:16,961 INFO L226 Difference]: Without dead ends: 118 [2024-12-02 10:15:16,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:15:16,962 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:16,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:15:16,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-12-02 10:15:16,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-12-02 10:15:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 102 states have (on average 1.2745098039215685) internal successors, (130), 109 states have internal predecessors, (130), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:15:16,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 145 transitions. [2024-12-02 10:15:16,970 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 145 transitions. Word has length 27 [2024-12-02 10:15:16,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:16,970 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 145 transitions. [2024-12-02 10:15:16,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-12-02 10:15:16,971 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 145 transitions. [2024-12-02 10:15:16,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-02 10:15:16,971 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:16,971 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:16,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 10:15:17,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:17,172 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_perror_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-12-02 10:15:17,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:17,172 INFO L85 PathProgramCache]: Analyzing trace with hash 348782614, now seen corresponding path program 1 times [2024-12-02 10:15:17,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:15:17,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [868810724] [2024-12-02 10:15:17,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:17,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:17,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:17,174 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:15:17,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 10:15:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:18,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:15:18,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:15:18,154 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:15:18,154 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:15:18,154 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:15:18,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868810724] [2024-12-02 10:15:18,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868810724] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:18,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:18,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:15:18,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347009081] [2024-12-02 10:15:18,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:18,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:15:18,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:15:18,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:15:18,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:15:18,156 INFO L87 Difference]: Start difference. First operand 118 states and 145 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-12-02 10:15:18,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:18,239 INFO L93 Difference]: Finished difference Result 123 states and 150 transitions. [2024-12-02 10:15:18,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:15:18,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 29 [2024-12-02 10:15:18,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:18,241 INFO L225 Difference]: With dead ends: 123 [2024-12-02 10:15:18,241 INFO L226 Difference]: Without dead ends: 122 [2024-12-02 10:15:18,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:15:18,242 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:18,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 229 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:15:18,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-12-02 10:15:18,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-12-02 10:15:18,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 106 states have (on average 1.2641509433962264) internal successors, (134), 113 states have internal predecessors, (134), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:15:18,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 149 transitions. [2024-12-02 10:15:18,246 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 149 transitions. Word has length 29 [2024-12-02 10:15:18,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:18,246 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 149 transitions. [2024-12-02 10:15:18,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-12-02 10:15:18,247 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 149 transitions. [2024-12-02 10:15:18,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 10:15:18,247 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:18,247 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:18,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 10:15:18,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:18,448 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_perror_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-12-02 10:15:18,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:18,448 INFO L85 PathProgramCache]: Analyzing trace with hash 428756241, now seen corresponding path program 1 times [2024-12-02 10:15:18,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:15:18,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [310074645] [2024-12-02 10:15:18,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:18,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:18,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:18,450 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:15:18,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 10:15:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:19,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:15:19,452 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:15:19,616 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:15:19,616 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:15:19,856 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:15:19,856 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:15:19,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310074645] [2024-12-02 10:15:19,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310074645] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:15:19,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:15:19,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-12-02 10:15:19,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332333013] [2024-12-02 10:15:19,856 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:15:19,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:15:19,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:15:19,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:15:19,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:15:19,857 INFO L87 Difference]: Start difference. First operand 122 states and 149 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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) [2024-12-02 10:15:20,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:20,149 INFO L93 Difference]: Finished difference Result 226 states and 282 transitions. [2024-12-02 10:15:20,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:15:20,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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 31 [2024-12-02 10:15:20,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:20,150 INFO L225 Difference]: With dead ends: 226 [2024-12-02 10:15:20,151 INFO L226 Difference]: Without dead ends: 131 [2024-12-02 10:15:20,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:20,151 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:20,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 336 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:20,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-12-02 10:15:20,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 123. [2024-12-02 10:15:20,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 108 states have (on average 1.2407407407407407) internal successors, (134), 114 states have internal predecessors, (134), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:15:20,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 149 transitions. [2024-12-02 10:15:20,159 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 149 transitions. Word has length 31 [2024-12-02 10:15:20,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:20,160 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 149 transitions. [2024-12-02 10:15:20,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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) [2024-12-02 10:15:20,160 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 149 transitions. [2024-12-02 10:15:20,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-02 10:15:20,160 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:20,160 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:20,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 10:15:20,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:20,361 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_perror_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-12-02 10:15:20,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:20,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1579146212, now seen corresponding path program 1 times [2024-12-02 10:15:20,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:15:20,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [615704641] [2024-12-02 10:15:20,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:20,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:20,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:20,363 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:15:20,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 10:15:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:21,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:15:21,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:15:21,409 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:15:21,409 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:15:21,643 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:15:21,643 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:15:21,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615704641] [2024-12-02 10:15:21,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615704641] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:15:21,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:15:21,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-12-02 10:15:21,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400724545] [2024-12-02 10:15:21,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:15:21,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:15:21,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:15:21,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:15:21,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:15:21,644 INFO L87 Difference]: Start difference. First operand 123 states and 149 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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) [2024-12-02 10:15:21,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:21,905 INFO L93 Difference]: Finished difference Result 132 states and 160 transitions. [2024-12-02 10:15:21,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:15:21,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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 33 [2024-12-02 10:15:21,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:21,907 INFO L225 Difference]: With dead ends: 132 [2024-12-02 10:15:21,907 INFO L226 Difference]: Without dead ends: 113 [2024-12-02 10:15:21,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:21,908 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:21,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 450 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:15:21,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-12-02 10:15:21,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-12-02 10:15:21,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 99 states have (on average 1.2424242424242424) internal successors, (123), 104 states have internal predecessors, (123), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:15:21,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 138 transitions. [2024-12-02 10:15:21,914 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 138 transitions. Word has length 33 [2024-12-02 10:15:21,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:21,914 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 138 transitions. [2024-12-02 10:15:21,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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) [2024-12-02 10:15:21,915 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 138 transitions. [2024-12-02 10:15:21,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-12-02 10:15:21,916 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:21,916 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:21,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 10:15:22,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:22,116 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_perror_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-12-02 10:15:22,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:22,116 INFO L85 PathProgramCache]: Analyzing trace with hash -2014831230, now seen corresponding path program 1 times [2024-12-02 10:15:22,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:15:22,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422238566] [2024-12-02 10:15:22,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:22,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:22,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:22,119 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:15:22,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 10:15:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:23,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:15:23,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:15:23,201 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:15:23,201 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:15:23,201 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:15:23,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422238566] [2024-12-02 10:15:23,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422238566] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:23,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:23,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:15:23,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253618641] [2024-12-02 10:15:23,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:23,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:15:23,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:15:23,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:15:23,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:15:23,203 INFO L87 Difference]: Start difference. First operand 113 states and 138 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-12-02 10:15:23,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:23,289 INFO L93 Difference]: Finished difference Result 126 states and 154 transitions. [2024-12-02 10:15:23,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:15:23,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 35 [2024-12-02 10:15:23,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:23,292 INFO L225 Difference]: With dead ends: 126 [2024-12-02 10:15:23,292 INFO L226 Difference]: Without dead ends: 115 [2024-12-02 10:15:23,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:15:23,293 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:23,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 324 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:15:23,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-12-02 10:15:23,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-12-02 10:15:23,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 101 states have (on average 1.2376237623762376) internal successors, (125), 106 states have internal predecessors, (125), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:15:23,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 140 transitions. [2024-12-02 10:15:23,298 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 140 transitions. Word has length 35 [2024-12-02 10:15:23,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:23,299 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 140 transitions. [2024-12-02 10:15:23,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-12-02 10:15:23,299 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 140 transitions. [2024-12-02 10:15:23,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-02 10:15:23,299 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:23,299 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:23,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 10:15:23,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:23,500 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_perror_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-12-02 10:15:23,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:23,500 INFO L85 PathProgramCache]: Analyzing trace with hash 221814827, now seen corresponding path program 1 times [2024-12-02 10:15:23,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:15:23,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [641851118] [2024-12-02 10:15:23,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:23,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:23,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:23,502 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:15:23,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 10:15:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:24,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:15:24,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:15:24,500 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:15:24,500 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:15:24,501 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:15:24,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641851118] [2024-12-02 10:15:24,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641851118] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:24,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:24,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:15:24,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120670856] [2024-12-02 10:15:24,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:24,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:15:24,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:15:24,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:15:24,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:15:24,502 INFO L87 Difference]: Start difference. First operand 115 states and 140 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-12-02 10:15:24,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:24,587 INFO L93 Difference]: Finished difference Result 128 states and 156 transitions. [2024-12-02 10:15:24,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:15:24,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 39 [2024-12-02 10:15:24,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:24,589 INFO L225 Difference]: With dead ends: 128 [2024-12-02 10:15:24,589 INFO L226 Difference]: Without dead ends: 117 [2024-12-02 10:15:24,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:15:24,590 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:24,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 324 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:15:24,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-12-02 10:15:24,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-12-02 10:15:24,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 103 states have (on average 1.233009708737864) internal successors, (127), 108 states have internal predecessors, (127), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:15:24,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 142 transitions. [2024-12-02 10:15:24,596 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 142 transitions. Word has length 39 [2024-12-02 10:15:24,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:24,596 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 142 transitions. [2024-12-02 10:15:24,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-12-02 10:15:24,596 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 142 transitions. [2024-12-02 10:15:24,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-02 10:15:24,597 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:24,597 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:24,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 10:15:24,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:24,797 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_perror_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-12-02 10:15:24,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:24,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1811929968, now seen corresponding path program 1 times [2024-12-02 10:15:24,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:15:24,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1471382377] [2024-12-02 10:15:24,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:24,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:24,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:24,800 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:15:24,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 10:15:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:25,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 10:15:25,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:15:25,924 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 10:15:25,924 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:15:25,924 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:15:25,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471382377] [2024-12-02 10:15:25,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471382377] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:25,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:25,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:15:25,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281791316] [2024-12-02 10:15:25,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:25,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:15:25,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:15:25,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:15:25,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:15:25,926 INFO L87 Difference]: Start difference. First operand 117 states and 142 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 10:15:26,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:26,163 INFO L93 Difference]: Finished difference Result 130 states and 156 transitions. [2024-12-02 10:15:26,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:15:26,163 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), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2024-12-02 10:15:26,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:26,164 INFO L225 Difference]: With dead ends: 130 [2024-12-02 10:15:26,164 INFO L226 Difference]: Without dead ends: 127 [2024-12-02 10:15:26,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:26,165 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 18 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:26,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 431 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:15:26,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-12-02 10:15:26,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 124. [2024-12-02 10:15:26,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 110 states have (on average 1.2363636363636363) internal successors, (136), 114 states have internal predecessors, (136), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:15:26,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 151 transitions. [2024-12-02 10:15:26,169 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 151 transitions. Word has length 41 [2024-12-02 10:15:26,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:26,170 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 151 transitions. [2024-12-02 10:15:26,170 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), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 10:15:26,170 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 151 transitions. [2024-12-02 10:15:26,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-02 10:15:26,170 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:26,170 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:26,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 10:15:26,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:26,371 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_perror_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-12-02 10:15:26,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:26,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1811928046, now seen corresponding path program 1 times [2024-12-02 10:15:26,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:15:26,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2081831022] [2024-12-02 10:15:26,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:26,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:26,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:26,374 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:15:26,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 10:15:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:27,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 10:15:27,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:15:27,861 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:15:27,861 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:15:27,861 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:15:27,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081831022] [2024-12-02 10:15:27,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081831022] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:15:27,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:15:27,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:15:27,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105864018] [2024-12-02 10:15:27,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:15:27,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:15:27,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:15:27,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:15:27,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:15:27,863 INFO L87 Difference]: Start difference. First operand 124 states and 151 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 10:15:28,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:28,635 INFO L93 Difference]: Finished difference Result 202 states and 250 transitions. [2024-12-02 10:15:28,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:15:28,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-12-02 10:15:28,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:28,637 INFO L225 Difference]: With dead ends: 202 [2024-12-02 10:15:28,637 INFO L226 Difference]: Without dead ends: 124 [2024-12-02 10:15:28,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:15:28,638 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 78 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:28,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 368 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:15:28,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-12-02 10:15:28,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-12-02 10:15:28,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 110 states have (on average 1.2272727272727273) internal successors, (135), 114 states have internal predecessors, (135), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:15:28,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 150 transitions. [2024-12-02 10:15:28,644 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 150 transitions. Word has length 41 [2024-12-02 10:15:28,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:28,644 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 150 transitions. [2024-12-02 10:15:28,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 10:15:28,644 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 150 transitions. [2024-12-02 10:15:28,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-02 10:15:28,645 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:28,645 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:28,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 10:15:28,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:28,845 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_perror_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-12-02 10:15:28,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:28,846 INFO L85 PathProgramCache]: Analyzing trace with hash -418903335, now seen corresponding path program 1 times [2024-12-02 10:15:28,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:15:28,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1185689303] [2024-12-02 10:15:28,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:28,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:28,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:28,848 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:15:28,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 10:15:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:29,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:15:29,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:15:30,240 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 10:15:30,240 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:15:30,752 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 10:15:30,752 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:15:30,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185689303] [2024-12-02 10:15:30,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185689303] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:15:30,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:15:30,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-12-02 10:15:30,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248884696] [2024-12-02 10:15:30,753 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:15:30,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:15:30,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:15:30,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:15:30,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:15:30,754 INFO L87 Difference]: Start difference. First operand 124 states and 150 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 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) [2024-12-02 10:15:31,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:31,266 INFO L93 Difference]: Finished difference Result 153 states and 186 transitions. [2024-12-02 10:15:31,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:15:31,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 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 49 [2024-12-02 10:15:31,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:31,268 INFO L225 Difference]: With dead ends: 153 [2024-12-02 10:15:31,268 INFO L226 Difference]: Without dead ends: 152 [2024-12-02 10:15:31,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:15:31,268 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:31,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 319 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:15:31,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-12-02 10:15:31,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 110. [2024-12-02 10:15:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 97 states have (on average 1.2371134020618557) internal successors, (120), 100 states have internal predecessors, (120), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:15:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 135 transitions. [2024-12-02 10:15:31,276 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 135 transitions. Word has length 49 [2024-12-02 10:15:31,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:31,276 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 135 transitions. [2024-12-02 10:15:31,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 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) [2024-12-02 10:15:31,276 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 135 transitions. [2024-12-02 10:15:31,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 10:15:31,277 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:31,277 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:31,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 10:15:31,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:31,477 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_perror_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-12-02 10:15:31,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:31,478 INFO L85 PathProgramCache]: Analyzing trace with hash -720123250, now seen corresponding path program 1 times [2024-12-02 10:15:31,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:15:31,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [492902516] [2024-12-02 10:15:31,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:15:31,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:31,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:31,481 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:15:31,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 10:15:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:15:32,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:15:32,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:15:32,687 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 10:15:32,687 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:15:33,037 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 10:15:33,037 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 10:15:33,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492902516] [2024-12-02 10:15:33,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492902516] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:15:33,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 10:15:33,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-12-02 10:15:33,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750825843] [2024-12-02 10:15:33,038 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 10:15:33,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:15:33,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 10:15:33,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:15:33,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:15:33,039 INFO L87 Difference]: Start difference. First operand 110 states and 135 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 10:15:33,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:15:33,575 INFO L93 Difference]: Finished difference Result 225 states and 278 transitions. [2024-12-02 10:15:33,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:15:33,576 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 55 [2024-12-02 10:15:33,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:15:33,576 INFO L225 Difference]: With dead ends: 225 [2024-12-02 10:15:33,576 INFO L226 Difference]: Without dead ends: 126 [2024-12-02 10:15:33,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:15:33,577 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 12 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:15:33,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 419 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:15:33,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-12-02 10:15:33,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2024-12-02 10:15:33,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 113 states have (on average 1.2035398230088497) internal successors, (136), 116 states have internal predecessors, (136), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:15:33,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 151 transitions. [2024-12-02 10:15:33,581 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 151 transitions. Word has length 55 [2024-12-02 10:15:33,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:15:33,582 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 151 transitions. [2024-12-02 10:15:33,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 10:15:33,582 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 151 transitions. [2024-12-02 10:15:33,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-12-02 10:15:33,582 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:15:33,582 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:15:33,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 10:15:33,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:33,783 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [bb_perror_msg_and_dieErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_perror_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_perror_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-12-02 10:15:33,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:15:33,783 INFO L85 PathProgramCache]: Analyzing trace with hash 574363766, now seen corresponding path program 2 times [2024-12-02 10:15:33,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 10:15:33,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2061209085] [2024-12-02 10:15:33,784 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:15:33,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:15:33,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:15:33,786 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:15:33,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d21e7c16-1b28-490c-b762-d7493b39cf57/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process