./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/uname-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/uname-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash df8b7adcbf56654757c5dc2be0c22286a9ec336a21d175300e29946df337c12f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:23:18,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:23:18,365 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-27 20:23:18,371 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:23:18,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:23:18,395 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:23:18,396 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:23:18,396 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:23:18,397 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:23:18,397 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:23:18,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:23:18,397 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:23:18,397 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:23:18,398 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:23:18,398 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:23:18,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:23:18,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:23:18,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:23:18,398 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:23:18,398 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:23:18,398 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:23:18,398 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:23:18,399 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:23:18,399 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:23:18,399 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:23:18,399 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:23:18,399 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:23:18,399 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:23:18,399 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:23:18,399 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:23:18,399 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:23:18,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:23:18,400 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:23:18,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:23:18,400 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:23:18,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:23:18,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:23:18,400 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:23:18,400 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:23:18,400 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:23:18,400 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:23:18,401 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:23:18,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:23:18,401 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:23:18,401 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:23:18,401 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:23:18,401 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:23:18,401 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_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df8b7adcbf56654757c5dc2be0c22286a9ec336a21d175300e29946df337c12f [2024-11-27 20:23:18,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:23:18,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:23:18,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:23:18,766 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:23:18,767 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:23:18,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/busybox-1.22.0/uname-1.i [2024-11-27 20:23:21,736 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/data/92b694b40/015e7cb02991425fb8d1cf0ca36657f9/FLAG15eb25765 [2024-11-27 20:23:22,406 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:23:22,407 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/sv-benchmarks/c/busybox-1.22.0/uname-1.i [2024-11-27 20:23:22,459 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/data/92b694b40/015e7cb02991425fb8d1cf0ca36657f9/FLAG15eb25765 [2024-11-27 20:23:22,482 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/data/92b694b40/015e7cb02991425fb8d1cf0ca36657f9 [2024-11-27 20:23:22,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:23:22,487 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:23:22,489 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:23:22,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:23:22,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:23:22,501 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:23:22" (1/1) ... [2024-11-27 20:23:22,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b796e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:22, skipping insertion in model container [2024-11-27 20:23:22,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:23:22" (1/1) ... [2024-11-27 20:23:22,602 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:23:24,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:23:24,173 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:23:24,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:23:24,633 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2024-11-27 20:23:24,642 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:23:24,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:24 WrapperNode [2024-11-27 20:23:24,644 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:23:24,645 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:23:24,645 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:23:24,645 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:23:24,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:24" (1/1) ... [2024-11-27 20:23:24,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:24" (1/1) ... [2024-11-27 20:23:24,795 INFO L138 Inliner]: procedures = 570, calls = 888, calls flagged for inlining = 24, calls inlined = 22, statements flattened = 2125 [2024-11-27 20:23:24,796 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:23:24,797 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:23:24,797 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:23:24,797 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:23:24,807 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:24" (1/1) ... [2024-11-27 20:23:24,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:24" (1/1) ... [2024-11-27 20:23:24,843 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:24" (1/1) ... [2024-11-27 20:23:24,859 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-27 20:23:24,859 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:24" (1/1) ... [2024-11-27 20:23:24,859 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:24" (1/1) ... [2024-11-27 20:23:24,960 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:24" (1/1) ... [2024-11-27 20:23:24,970 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:24" (1/1) ... [2024-11-27 20:23:25,000 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:24" (1/1) ... [2024-11-27 20:23:25,019 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:24" (1/1) ... [2024-11-27 20:23:25,033 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:24" (1/1) ... [2024-11-27 20:23:25,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:23:25,067 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:23:25,067 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:23:25,067 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:23:25,068 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:24" (1/1) ... [2024-11-27 20:23:25,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:23:25,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:25,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:23:25,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:23:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:23:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-27 20:23:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2024-11-27 20:23:25,145 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2024-11-27 20:23:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-27 20:23:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 20:23:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 20:23:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:23:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-27 20:23:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:23:25,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:23:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-11-27 20:23:25,147 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-11-27 20:23:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2024-11-27 20:23:25,147 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2024-11-27 20:23:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-27 20:23:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-27 20:23:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-27 20:23:25,148 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-27 20:23:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:23:25,149 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:23:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 20:23:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-27 20:23:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-27 20:23:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2024-11-27 20:23:25,150 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2024-11-27 20:23:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 20:23:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2024-11-27 20:23:25,152 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2024-11-27 20:23:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 20:23:25,735 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:23:25,739 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:23:37,328 INFO L? ?]: Removed 598 outVars from TransFormulas that were not future-live. [2024-11-27 20:23:37,328 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:23:37,366 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:23:37,366 INFO L312 CfgBuilder]: Removed 40 assume(true) statements. [2024-11-27 20:23:37,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:23:37 BoogieIcfgContainer [2024-11-27 20:23:37,366 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:23:37,369 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:23:37,369 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:23:37,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:23:37,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:23:22" (1/3) ... [2024-11-27 20:23:37,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6695a06e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:23:37, skipping insertion in model container [2024-11-27 20:23:37,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:24" (2/3) ... [2024-11-27 20:23:37,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6695a06e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:23:37, skipping insertion in model container [2024-11-27 20:23:37,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:23:37" (3/3) ... [2024-11-27 20:23:37,377 INFO L128 eAbstractionObserver]: Analyzing ICFG uname-1.i [2024-11-27 20:23:37,393 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:23:37,397 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uname-1.i that has 8 procedures, 554 locations, 1 initial locations, 37 loop locations, and 81 error locations. [2024-11-27 20:23:37,483 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:23:37,494 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;@2bb1bfec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:23:37,494 INFO L334 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2024-11-27 20:23:37,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 554 states, 443 states have (on average 1.6772009029345372) internal successors, (743), 527 states have internal predecessors, (743), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 20:23:37,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-27 20:23:37,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:37,507 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 20:23:37,507 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:23:37,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:37,513 INFO L85 PathProgramCache]: Analyzing trace with hash 287313461, now seen corresponding path program 1 times [2024-11-27 20:23:37,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:37,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843656148] [2024-11-27 20:23:37,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:37,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:47,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:23:47,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:47,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843656148] [2024-11-27 20:23:47,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843656148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:47,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:47,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:23:47,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380233403] [2024-11-27 20:23:47,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:47,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:23:47,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:47,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:23:47,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:23:47,513 INFO L87 Difference]: Start difference. First operand has 554 states, 443 states have (on average 1.6772009029345372) internal successors, (743), 527 states have internal predecessors, (743), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:47,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:47,724 INFO L93 Difference]: Finished difference Result 994 states and 1445 transitions. [2024-11-27 20:23:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:23:47,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-27 20:23:47,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:47,739 INFO L225 Difference]: With dead ends: 994 [2024-11-27 20:23:47,739 INFO L226 Difference]: Without dead ends: 443 [2024-11-27 20:23:47,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:23:47,748 INFO L435 NwaCegarLoop]: 601 mSDtfsCounter, 1 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:47,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1197 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:23:47,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-27 20:23:47,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2024-11-27 20:23:47,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 368 states have (on average 1.5625) internal successors, (575), 424 states have internal predecessors, (575), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:23:47,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 606 transitions. [2024-11-27 20:23:47,844 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 606 transitions. Word has length 5 [2024-11-27 20:23:47,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:47,844 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 606 transitions. [2024-11-27 20:23:47,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:47,845 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 606 transitions. [2024-11-27 20:23:47,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 20:23:47,848 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:47,849 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-27 20:23:47,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:23:47,849 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:23:47,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:47,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1239987311, now seen corresponding path program 1 times [2024-11-27 20:23:47,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:47,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890084646] [2024-11-27 20:23:47,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:47,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:55,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:23:55,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:55,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890084646] [2024-11-27 20:23:55,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890084646] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:23:55,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668862264] [2024-11-27 20:23:55,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:55,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:55,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:55,880 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:55,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:24:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:03,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 2830 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:24:03,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:03,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:03,839 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:03,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668862264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:03,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:03,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-27 20:24:03,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377544453] [2024-11-27 20:24:03,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:03,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:24:03,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:03,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:24:03,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:24:03,843 INFO L87 Difference]: Start difference. First operand 443 states and 606 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:04,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:04,007 INFO L93 Difference]: Finished difference Result 443 states and 606 transitions. [2024-11-27 20:24:04,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:24:04,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 20:24:04,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:04,011 INFO L225 Difference]: With dead ends: 443 [2024-11-27 20:24:04,011 INFO L226 Difference]: Without dead ends: 442 [2024-11-27 20:24:04,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:24:04,013 INFO L435 NwaCegarLoop]: 595 mSDtfsCounter, 1 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:04,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1781 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:24:04,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-11-27 20:24:04,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2024-11-27 20:24:04,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 368 states have (on average 1.559782608695652) internal successors, (574), 423 states have internal predecessors, (574), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:24:04,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 605 transitions. [2024-11-27 20:24:04,038 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 605 transitions. Word has length 9 [2024-11-27 20:24:04,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:04,038 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 605 transitions. [2024-11-27 20:24:04,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:04,039 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 605 transitions. [2024-11-27 20:24:04,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-27 20:24:04,039 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:04,039 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2024-11-27 20:24:04,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:24:04,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:04,240 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:24:04,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:04,241 INFO L85 PathProgramCache]: Analyzing trace with hash -215098706, now seen corresponding path program 1 times [2024-11-27 20:24:04,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:04,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694006629] [2024-11-27 20:24:04,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:04,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:11,771 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:24:11,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:11,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694006629] [2024-11-27 20:24:11,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694006629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:11,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:11,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:24:11,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846849373] [2024-11-27 20:24:11,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:11,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:11,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:11,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:11,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:11,774 INFO L87 Difference]: Start difference. First operand 442 states and 605 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:11,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:11,859 INFO L93 Difference]: Finished difference Result 442 states and 605 transitions. [2024-11-27 20:24:11,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:11,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-27 20:24:11,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:11,862 INFO L225 Difference]: With dead ends: 442 [2024-11-27 20:24:11,862 INFO L226 Difference]: Without dead ends: 441 [2024-11-27 20:24:11,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:11,864 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 0 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:11,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1189 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:24:11,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-27 20:24:11,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 438. [2024-11-27 20:24:11,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 365 states have (on average 1.5616438356164384) internal successors, (570), 419 states have internal predecessors, (570), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:24:11,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 601 transitions. [2024-11-27 20:24:11,885 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 601 transitions. Word has length 10 [2024-11-27 20:24:11,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:11,885 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 601 transitions. [2024-11-27 20:24:11,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:11,885 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 601 transitions. [2024-11-27 20:24:11,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-27 20:24:11,886 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:11,886 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:11,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:24:11,886 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:24:11,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:11,887 INFO L85 PathProgramCache]: Analyzing trace with hash 270967508, now seen corresponding path program 1 times [2024-11-27 20:24:11,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:11,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493608922] [2024-11-27 20:24:11,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:11,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:19,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:19,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:19,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493608922] [2024-11-27 20:24:19,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493608922] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:19,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864751677] [2024-11-27 20:24:19,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:19,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:19,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:19,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:19,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:24:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:27,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 2847 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:24:27,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:27,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:24:27,442 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:27,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864751677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:27,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:27,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-27 20:24:27,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229411957] [2024-11-27 20:24:27,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:27,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:27,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:27,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:27,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:24:27,444 INFO L87 Difference]: Start difference. First operand 438 states and 601 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:24:27,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:27,546 INFO L93 Difference]: Finished difference Result 438 states and 601 transitions. [2024-11-27 20:24:27,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:27,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-11-27 20:24:27,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:27,550 INFO L225 Difference]: With dead ends: 438 [2024-11-27 20:24:27,550 INFO L226 Difference]: Without dead ends: 436 [2024-11-27 20:24:27,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:24:27,552 INFO L435 NwaCegarLoop]: 589 mSDtfsCounter, 530 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 640 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 [2024-11-27 20:24:27,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 640 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:24:27,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-27 20:24:27,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2024-11-27 20:24:27,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 365 states have (on average 1.5561643835616439) internal successors, (568), 417 states have internal predecessors, (568), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:24:27,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 599 transitions. [2024-11-27 20:24:27,571 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 599 transitions. Word has length 14 [2024-11-27 20:24:27,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:27,573 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 599 transitions. [2024-11-27 20:24:27,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:24:27,573 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 599 transitions. [2024-11-27 20:24:27,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 20:24:27,574 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:27,574 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:27,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:27,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:27,775 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:24:27,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:27,775 INFO L85 PathProgramCache]: Analyzing trace with hash -189941518, now seen corresponding path program 1 times [2024-11-27 20:24:27,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:27,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51100950] [2024-11-27 20:24:27,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:27,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:34,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:34,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:34,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51100950] [2024-11-27 20:24:34,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51100950] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:34,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378882976] [2024-11-27 20:24:34,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:34,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:34,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:34,914 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:34,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:24:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:42,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 2848 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:24:42,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:42,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:42,505 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:42,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:42,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378882976] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:42,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:42,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-27 20:24:42,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049585234] [2024-11-27 20:24:42,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:42,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:24:42,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:42,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:24:42,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:24:42,686 INFO L87 Difference]: Start difference. First operand 436 states and 599 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:24:42,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:42,852 INFO L93 Difference]: Finished difference Result 877 states and 1205 transitions. [2024-11-27 20:24:42,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:24:42,852 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-27 20:24:42,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:42,855 INFO L225 Difference]: With dead ends: 877 [2024-11-27 20:24:42,855 INFO L226 Difference]: Without dead ends: 448 [2024-11-27 20:24:42,856 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:24:42,857 INFO L435 NwaCegarLoop]: 594 mSDtfsCounter, 6 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:42,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1776 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:24:42,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-27 20:24:42,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2024-11-27 20:24:42,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 377 states have (on average 1.5384615384615385) internal successors, (580), 429 states have internal predecessors, (580), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:24:42,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 611 transitions. [2024-11-27 20:24:42,875 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 611 transitions. Word has length 15 [2024-11-27 20:24:42,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:42,875 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 611 transitions. [2024-11-27 20:24:42,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:24:42,876 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 611 transitions. [2024-11-27 20:24:42,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-27 20:24:42,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:42,877 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:42,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:24:43,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:43,077 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:24:43,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:43,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1666769696, now seen corresponding path program 2 times [2024-11-27 20:24:43,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:43,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740502126] [2024-11-27 20:24:43,078 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:43,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:49,433 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:24:49,434 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:50,377 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 20:24:50,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:50,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740502126] [2024-11-27 20:24:50,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740502126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:50,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:50,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:24:50,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766864504] [2024-11-27 20:24:50,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:50,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:24:50,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:50,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:24:50,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:24:50,380 INFO L87 Difference]: Start difference. First operand 448 states and 611 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:24:50,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:50,727 INFO L93 Difference]: Finished difference Result 448 states and 611 transitions. [2024-11-27 20:24:50,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:24:50,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-11-27 20:24:50,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:50,730 INFO L225 Difference]: With dead ends: 448 [2024-11-27 20:24:50,730 INFO L226 Difference]: Without dead ends: 446 [2024-11-27 20:24:50,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:24:50,731 INFO L435 NwaCegarLoop]: 586 mSDtfsCounter, 529 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:50,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 1801 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:24:50,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-27 20:24:50,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2024-11-27 20:24:50,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 377 states have (on average 1.53315649867374) internal successors, (578), 427 states have internal predecessors, (578), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:24:50,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 609 transitions. [2024-11-27 20:24:50,748 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 609 transitions. Word has length 27 [2024-11-27 20:24:50,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:50,749 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 609 transitions. [2024-11-27 20:24:50,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:24:50,749 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 609 transitions. [2024-11-27 20:24:50,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-27 20:24:50,750 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:50,750 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:50,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:24:50,751 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:24:50,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:50,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1573988150, now seen corresponding path program 1 times [2024-11-27 20:24:50,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:50,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333082486] [2024-11-27 20:24:50,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:50,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:58,092 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 20:24:58,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:58,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333082486] [2024-11-27 20:24:58,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333082486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:58,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:58,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:24:58,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323801852] [2024-11-27 20:24:58,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:58,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:58,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:58,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:58,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:58,094 INFO L87 Difference]: Start difference. First operand 446 states and 609 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) [2024-11-27 20:24:58,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:58,236 INFO L93 Difference]: Finished difference Result 871 states and 1198 transitions. [2024-11-27 20:24:58,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:58,236 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 [2024-11-27 20:24:58,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:58,239 INFO L225 Difference]: With dead ends: 871 [2024-11-27 20:24:58,239 INFO L226 Difference]: Without dead ends: 450 [2024-11-27 20:24:58,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:58,241 INFO L435 NwaCegarLoop]: 592 mSDtfsCounter, 1 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:58,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1178 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:24:58,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-27 20:24:58,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2024-11-27 20:24:58,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 381 states have (on average 1.5275590551181102) internal successors, (582), 431 states have internal predecessors, (582), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:24:58,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 613 transitions. [2024-11-27 20:24:58,272 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 613 transitions. Word has length 34 [2024-11-27 20:24:58,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:58,273 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 613 transitions. [2024-11-27 20:24:58,273 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) [2024-11-27 20:24:58,273 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 613 transitions. [2024-11-27 20:24:58,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-27 20:24:58,274 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:58,274 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:58,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:24:58,274 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:24:58,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:58,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1576633561, now seen corresponding path program 1 times [2024-11-27 20:24:58,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:58,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723122217] [2024-11-27 20:24:58,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:58,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:05,444 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 20:25:05,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:05,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723122217] [2024-11-27 20:25:05,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723122217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:05,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:25:05,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:25:05,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604164629] [2024-11-27 20:25:05,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:05,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:25:05,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:05,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:25:05,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:25:05,446 INFO L87 Difference]: Start difference. First operand 450 states and 613 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) [2024-11-27 20:25:05,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:05,674 INFO L93 Difference]: Finished difference Result 755 states and 1059 transitions. [2024-11-27 20:25:05,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:25:05,675 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 [2024-11-27 20:25:05,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:05,678 INFO L225 Difference]: With dead ends: 755 [2024-11-27 20:25:05,679 INFO L226 Difference]: Without dead ends: 753 [2024-11-27 20:25:05,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:25:05,680 INFO L435 NwaCegarLoop]: 588 mSDtfsCounter, 418 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:05,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1168 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:25:05,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-27 20:25:05,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 454. [2024-11-27 20:25:05,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 385 states have (on average 1.5246753246753246) internal successors, (587), 435 states have internal predecessors, (587), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:25:05,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 618 transitions. [2024-11-27 20:25:05,705 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 618 transitions. Word has length 34 [2024-11-27 20:25:05,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:05,706 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 618 transitions. [2024-11-27 20:25:05,706 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) [2024-11-27 20:25:05,706 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 618 transitions. [2024-11-27 20:25:05,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 20:25:05,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:05,707 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:25:05,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:25:05,707 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:25:05,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:05,708 INFO L85 PathProgramCache]: Analyzing trace with hash 914671152, now seen corresponding path program 1 times [2024-11-27 20:25:05,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:05,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446811858] [2024-11-27 20:25:05,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:05,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:12,828 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 20:25:12,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:12,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446811858] [2024-11-27 20:25:12,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446811858] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:25:12,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253432655] [2024-11-27 20:25:12,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:12,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:12,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:12,831 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:12,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:25:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:20,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 3033 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:25:20,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:21,374 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:25:21,374 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:25:22,124 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:25:22,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253432655] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:25:22,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:25:22,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-11-27 20:25:22,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461083482] [2024-11-27 20:25:22,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:25:22,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:25:22,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:22,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:25:22,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:25:22,128 INFO L87 Difference]: Start difference. First operand 454 states and 618 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:25:23,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:23,141 INFO L93 Difference]: Finished difference Result 912 states and 1246 transitions. [2024-11-27 20:25:23,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:25:23,142 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2024-11-27 20:25:23,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:23,144 INFO L225 Difference]: With dead ends: 912 [2024-11-27 20:25:23,144 INFO L226 Difference]: Without dead ends: 477 [2024-11-27 20:25:23,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:25:23,149 INFO L435 NwaCegarLoop]: 585 mSDtfsCounter, 7 mSDsluCounter, 3492 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4077 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:23,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4077 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:25:23,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-27 20:25:23,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 477. [2024-11-27 20:25:23,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 409 states have (on average 1.4914425427872862) internal successors, (610), 458 states have internal predecessors, (610), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:25:23,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 641 transitions. [2024-11-27 20:25:23,172 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 641 transitions. Word has length 38 [2024-11-27 20:25:23,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:23,173 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 641 transitions. [2024-11-27 20:25:23,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:25:23,173 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 641 transitions. [2024-11-27 20:25:23,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-27 20:25:23,177 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:23,177 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] [2024-11-27 20:25:23,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 20:25:23,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:23,378 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:25:23,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:23,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1119696938, now seen corresponding path program 1 times [2024-11-27 20:25:23,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:23,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025097697] [2024-11-27 20:25:23,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:23,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:30,944 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 20:25:30,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:30,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025097697] [2024-11-27 20:25:30,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025097697] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:25:30,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069951035] [2024-11-27 20:25:30,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:30,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:30,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:30,948 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:30,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:25:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:39,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 3130 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:25:39,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:39,352 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-27 20:25:39,352 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:25:39,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069951035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:39,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:25:39,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-27 20:25:39,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684691834] [2024-11-27 20:25:39,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:39,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:25:39,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:39,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:25:39,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:25:39,354 INFO L87 Difference]: Start difference. First operand 477 states and 641 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:25:39,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:39,451 INFO L93 Difference]: Finished difference Result 477 states and 641 transitions. [2024-11-27 20:25:39,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:25:39,452 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 [2024-11-27 20:25:39,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:39,455 INFO L225 Difference]: With dead ends: 477 [2024-11-27 20:25:39,455 INFO L226 Difference]: Without dead ends: 476 [2024-11-27 20:25:39,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:25:39,456 INFO L435 NwaCegarLoop]: 587 mSDtfsCounter, 2 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1165 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 [2024-11-27 20:25:39,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1165 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:25:39,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-27 20:25:39,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2024-11-27 20:25:39,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 409 states have (on average 1.488997555012225) internal successors, (609), 457 states have internal predecessors, (609), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:25:39,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 640 transitions. [2024-11-27 20:25:39,480 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 640 transitions. Word has length 62 [2024-11-27 20:25:39,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:39,481 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 640 transitions. [2024-11-27 20:25:39,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:25:39,482 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 640 transitions. [2024-11-27 20:25:39,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-27 20:25:39,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:39,483 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] [2024-11-27 20:25:39,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:25:39,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-27 20:25:39,684 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:25:39,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:39,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1862680040, now seen corresponding path program 1 times [2024-11-27 20:25:39,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:39,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271854821] [2024-11-27 20:25:39,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:39,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:46,883 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 20:25:46,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:46,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271854821] [2024-11-27 20:25:46,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271854821] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:25:46,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472796418] [2024-11-27 20:25:46,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:46,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:46,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:46,889 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:46,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:25:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:55,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 3163 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:25:55,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:55,354 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 20:25:55,354 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:25:55,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472796418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:55,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:25:55,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-27 20:25:55,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149452621] [2024-11-27 20:25:55,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:55,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:25:55,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:55,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:25:55,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:25:55,356 INFO L87 Difference]: Start difference. First operand 476 states and 640 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:25:55,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:55,902 INFO L93 Difference]: Finished difference Result 779 states and 1085 transitions. [2024-11-27 20:25:55,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:25:55,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 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 [2024-11-27 20:25:55,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:55,910 INFO L225 Difference]: With dead ends: 779 [2024-11-27 20:25:55,910 INFO L226 Difference]: Without dead ends: 778 [2024-11-27 20:25:55,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:25:55,912 INFO L435 NwaCegarLoop]: 1020 mSDtfsCounter, 835 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:55,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 1770 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:25:55,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2024-11-27 20:25:55,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 475. [2024-11-27 20:25:55,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 409 states have (on average 1.4865525672371638) internal successors, (608), 456 states have internal predecessors, (608), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:25:55,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 639 transitions. [2024-11-27 20:25:55,939 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 639 transitions. Word has length 62 [2024-11-27 20:25:55,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:55,940 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 639 transitions. [2024-11-27 20:25:55,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:25:55,941 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 639 transitions. [2024-11-27 20:25:55,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-27 20:25:55,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:55,941 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:25:55,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 20:25:56,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 20:25:56,142 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:25:56,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:56,142 INFO L85 PathProgramCache]: Analyzing trace with hash -350933874, now seen corresponding path program 1 times [2024-11-27 20:25:56,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:56,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083121876] [2024-11-27 20:25:56,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:56,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:26:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:26:02,930 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-27 20:26:02,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:26:02,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083121876] [2024-11-27 20:26:02,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083121876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:26:02,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:26:02,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:26:02,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551148595] [2024-11-27 20:26:02,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:26:02,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:26:02,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:26:02,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:26:02,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:26:02,933 INFO L87 Difference]: Start difference. First operand 475 states and 639 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:26:03,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:26:03,027 INFO L93 Difference]: Finished difference Result 475 states and 639 transitions. [2024-11-27 20:26:03,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:26:03,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2024-11-27 20:26:03,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:26:03,030 INFO L225 Difference]: With dead ends: 475 [2024-11-27 20:26:03,030 INFO L226 Difference]: Without dead ends: 474 [2024-11-27 20:26:03,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:26:03,031 INFO L435 NwaCegarLoop]: 588 mSDtfsCounter, 0 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:26:03,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1172 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:26:03,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-27 20:26:03,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 471. [2024-11-27 20:26:03,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 406 states have (on average 1.4876847290640394) internal successors, (604), 452 states have internal predecessors, (604), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:26:03,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 635 transitions. [2024-11-27 20:26:03,052 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 635 transitions. Word has length 63 [2024-11-27 20:26:03,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:26:03,052 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 635 transitions. [2024-11-27 20:26:03,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:26:03,052 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 635 transitions. [2024-11-27 20:26:03,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-27 20:26:03,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:26:03,053 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] [2024-11-27 20:26:03,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 20:26:03,054 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:26:03,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:26:03,054 INFO L85 PathProgramCache]: Analyzing trace with hash -350866348, now seen corresponding path program 1 times [2024-11-27 20:26:03,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:26:03,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245097767] [2024-11-27 20:26:03,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:03,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:26:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:26:10,731 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 20:26:10,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:26:10,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245097767] [2024-11-27 20:26:10,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245097767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:26:10,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064702878] [2024-11-27 20:26:10,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:10,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:26:10,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:26:10,733 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:26:10,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:26:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:26:19,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 3131 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:26:19,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:26:19,228 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-27 20:26:19,229 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:26:19,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064702878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:26:19,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:26:19,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-27 20:26:19,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850009984] [2024-11-27 20:26:19,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:26:19,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:26:19,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:26:19,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:26:19,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:26:19,230 INFO L87 Difference]: Start difference. First operand 471 states and 635 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:26:19,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:26:19,372 INFO L93 Difference]: Finished difference Result 482 states and 648 transitions. [2024-11-27 20:26:19,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:26:19,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2024-11-27 20:26:19,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:26:19,376 INFO L225 Difference]: With dead ends: 482 [2024-11-27 20:26:19,376 INFO L226 Difference]: Without dead ends: 481 [2024-11-27 20:26:19,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:26:19,377 INFO L435 NwaCegarLoop]: 586 mSDtfsCounter, 0 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:26:19,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1168 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:26:19,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-27 20:26:19,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2024-11-27 20:26:19,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 416 states have (on average 1.4807692307692308) internal successors, (616), 462 states have internal predecessors, (616), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:26:19,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 647 transitions. [2024-11-27 20:26:19,397 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 647 transitions. Word has length 63 [2024-11-27 20:26:19,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:26:19,397 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 647 transitions. [2024-11-27 20:26:19,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:26:19,397 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 647 transitions. [2024-11-27 20:26:19,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-27 20:26:19,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:26:19,398 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:26:19,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 20:26:19,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-27 20:26:19,599 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:26:19,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:26:19,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1908506012, now seen corresponding path program 1 times [2024-11-27 20:26:19,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:26:19,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157738848] [2024-11-27 20:26:19,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:19,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:26:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:26:27,026 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 20:26:27,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:26:27,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157738848] [2024-11-27 20:26:27,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157738848] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:26:27,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496444540] [2024-11-27 20:26:27,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:27,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:26:27,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:26:27,028 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:26:27,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:26:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:26:35,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 3164 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:26:35,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:26:35,769 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 20:26:35,769 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:26:35,982 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 20:26:35,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496444540] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:26:35,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:26:35,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-27 20:26:35,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854191446] [2024-11-27 20:26:35,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:26:35,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:26:35,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:26:35,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:26:35,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:26:35,984 INFO L87 Difference]: Start difference. First operand 481 states and 647 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:26:36,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:26:36,804 INFO L93 Difference]: Finished difference Result 1690 states and 2421 transitions. [2024-11-27 20:26:36,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:26:36,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2024-11-27 20:26:36,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:26:36,812 INFO L225 Difference]: With dead ends: 1690 [2024-11-27 20:26:36,813 INFO L226 Difference]: Without dead ends: 1689 [2024-11-27 20:26:36,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:26:36,814 INFO L435 NwaCegarLoop]: 584 mSDtfsCounter, 2914 mSDsluCounter, 2440 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2946 SdHoareTripleChecker+Valid, 3024 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:26:36,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2946 Valid, 3024 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:26:36,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2024-11-27 20:26:36,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 493. [2024-11-27 20:26:36,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 428 states have (on average 1.4742990654205608) internal successors, (631), 474 states have internal predecessors, (631), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:26:36,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 662 transitions. [2024-11-27 20:26:36,850 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 662 transitions. Word has length 63 [2024-11-27 20:26:36,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:26:36,851 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 662 transitions. [2024-11-27 20:26:36,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:26:36,851 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 662 transitions. [2024-11-27 20:26:36,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-27 20:26:36,853 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:26:36,853 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, 1] [2024-11-27 20:26:36,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-27 20:26:37,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:26:37,054 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:26:37,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:26:37,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1641440671, now seen corresponding path program 1 times [2024-11-27 20:26:37,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:26:37,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237894640] [2024-11-27 20:26:37,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:37,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:26:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:26:43,992 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 20:26:43,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:26:43,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237894640] [2024-11-27 20:26:43,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237894640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:26:43,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:26:43,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:26:43,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655704410] [2024-11-27 20:26:43,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:26:43,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:26:43,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:26:43,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:26:43,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:26:43,995 INFO L87 Difference]: Start difference. First operand 493 states and 662 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:26:44,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:26:44,651 INFO L93 Difference]: Finished difference Result 984 states and 1353 transitions. [2024-11-27 20:26:44,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:26:44,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2024-11-27 20:26:44,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:26:44,654 INFO L225 Difference]: With dead ends: 984 [2024-11-27 20:26:44,654 INFO L226 Difference]: Without dead ends: 590 [2024-11-27 20:26:44,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:26:44,656 INFO L435 NwaCegarLoop]: 604 mSDtfsCounter, 121 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:26:44,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1124 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:26:44,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-11-27 20:26:44,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 536. [2024-11-27 20:26:44,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 470 states have (on average 1.4638297872340424) internal successors, (688), 516 states have internal predecessors, (688), 19 states have call successors, (19), 7 states have call predecessors, (19), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 20:26:44,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 721 transitions. [2024-11-27 20:26:44,682 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 721 transitions. Word has length 72 [2024-11-27 20:26:44,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:26:44,682 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 721 transitions. [2024-11-27 20:26:44,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:26:44,682 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 721 transitions. [2024-11-27 20:26:44,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-27 20:26:44,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:26:44,683 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] [2024-11-27 20:26:44,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 20:26:44,684 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:26:44,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:26:44,684 INFO L85 PathProgramCache]: Analyzing trace with hash -2011340118, now seen corresponding path program 1 times [2024-11-27 20:26:44,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:26:44,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020285752] [2024-11-27 20:26:44,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:44,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:26:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:26:52,284 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-27 20:26:52,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:26:52,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020285752] [2024-11-27 20:26:52,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020285752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:26:52,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54844709] [2024-11-27 20:26:52,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:26:52,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:26:52,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:26:52,290 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:26:52,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:27:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:27:01,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 3205 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:27:01,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:27:01,913 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-27 20:27:01,913 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:27:02,099 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-27 20:27:02,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54844709] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:27:02,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:27:02,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-27 20:27:02,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440807157] [2024-11-27 20:27:02,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:27:02,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:27:02,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:27:02,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:27:02,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:27:02,102 INFO L87 Difference]: Start difference. First operand 536 states and 721 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:27:02,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:27:02,401 INFO L93 Difference]: Finished difference Result 1040 states and 1412 transitions. [2024-11-27 20:27:02,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:27:02,402 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 [2024-11-27 20:27:02,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:27:02,404 INFO L225 Difference]: With dead ends: 1040 [2024-11-27 20:27:02,405 INFO L226 Difference]: Without dead ends: 560 [2024-11-27 20:27:02,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:27:02,406 INFO L435 NwaCegarLoop]: 588 mSDtfsCounter, 6 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2340 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:27:02,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2340 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:27:02,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-27 20:27:02,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2024-11-27 20:27:02,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 494 states have (on average 1.4412955465587045) internal successors, (712), 540 states have internal predecessors, (712), 19 states have call successors, (19), 7 states have call predecessors, (19), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 20:27:02,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 745 transitions. [2024-11-27 20:27:02,430 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 745 transitions. Word has length 73 [2024-11-27 20:27:02,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:27:02,430 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 745 transitions. [2024-11-27 20:27:02,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:27:02,431 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 745 transitions. [2024-11-27 20:27:02,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-27 20:27:02,431 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:27:02,432 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, 1, 1, 1] [2024-11-27 20:27:02,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 20:27:02,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 20:27:02,633 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:27:02,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:27:02,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1171473625, now seen corresponding path program 1 times [2024-11-27 20:27:02,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:27:02,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391085775] [2024-11-27 20:27:02,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:27:02,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:27:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:27:09,688 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 20:27:09,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:27:09,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391085775] [2024-11-27 20:27:09,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391085775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:27:09,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:27:09,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:27:09,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504936086] [2024-11-27 20:27:09,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:27:09,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:27:09,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:27:09,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:27:09,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:27:09,690 INFO L87 Difference]: Start difference. First operand 560 states and 745 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:27:09,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:27:09,773 INFO L93 Difference]: Finished difference Result 562 states and 745 transitions. [2024-11-27 20:27:09,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:27:09,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 74 [2024-11-27 20:27:09,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:27:09,777 INFO L225 Difference]: With dead ends: 562 [2024-11-27 20:27:09,777 INFO L226 Difference]: Without dead ends: 560 [2024-11-27 20:27:09,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:27:09,778 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 1 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:27:09,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1174 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:27:09,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-27 20:27:09,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2024-11-27 20:27:09,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 494 states have (on average 1.437246963562753) internal successors, (710), 540 states have internal predecessors, (710), 19 states have call successors, (19), 7 states have call predecessors, (19), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 20:27:09,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 743 transitions. [2024-11-27 20:27:09,808 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 743 transitions. Word has length 74 [2024-11-27 20:27:09,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:27:09,809 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 743 transitions. [2024-11-27 20:27:09,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:27:09,809 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 743 transitions. [2024-11-27 20:27:09,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-27 20:27:09,810 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:27:09,810 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:27:09,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 20:27:09,811 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:27:09,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:27:09,811 INFO L85 PathProgramCache]: Analyzing trace with hash -2126440653, now seen corresponding path program 2 times [2024-11-27 20:27:09,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:27:09,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921187130] [2024-11-27 20:27:09,812 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:27:09,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:27:16,793 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:27:16,793 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:27:17,594 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-27 20:27:17,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:27:17,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921187130] [2024-11-27 20:27:17,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921187130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:27:17,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:27:17,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:27:17,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882786833] [2024-11-27 20:27:17,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:27:17,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:27:17,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:27:17,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:27:17,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:27:17,596 INFO L87 Difference]: Start difference. First operand 560 states and 743 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:27:18,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:27:18,137 INFO L93 Difference]: Finished difference Result 1026 states and 1386 transitions. [2024-11-27 20:27:18,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:27:18,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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 75 [2024-11-27 20:27:18,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:27:18,141 INFO L225 Difference]: With dead ends: 1026 [2024-11-27 20:27:18,141 INFO L226 Difference]: Without dead ends: 560 [2024-11-27 20:27:18,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:27:18,143 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 532 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 2341 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:27:18,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 2341 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:27:18,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-27 20:27:18,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2024-11-27 20:27:18,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 494 states have (on average 1.4352226720647774) internal successors, (709), 540 states have internal predecessors, (709), 19 states have call successors, (19), 7 states have call predecessors, (19), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 20:27:18,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 742 transitions. [2024-11-27 20:27:18,168 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 742 transitions. Word has length 75 [2024-11-27 20:27:18,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:27:18,169 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 742 transitions. [2024-11-27 20:27:18,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:27:18,169 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 742 transitions. [2024-11-27 20:27:18,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 20:27:18,170 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:27:18,170 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 8, 8, 8, 8, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:27:18,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 20:27:18,170 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:27:18,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:27:18,171 INFO L85 PathProgramCache]: Analyzing trace with hash -68185650, now seen corresponding path program 2 times [2024-11-27 20:27:18,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:27:18,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902182341] [2024-11-27 20:27:18,171 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:27:18,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:27:24,623 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:27:24,623 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:27:25,038 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-11-27 20:27:25,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:27:25,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902182341] [2024-11-27 20:27:25,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902182341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:27:25,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519584494] [2024-11-27 20:27:25,039 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:27:25,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:25,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:27:25,041 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:27:25,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:27:34,012 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:27:34,012 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:27:34,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 2918 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:27:34,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:27:34,682 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-11-27 20:27:34,682 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:27:35,280 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-11-27 20:27:35,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519584494] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:27:35,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:27:35,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-27 20:27:35,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795005961] [2024-11-27 20:27:35,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:27:35,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:27:35,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:27:35,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:27:35,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:27:35,282 INFO L87 Difference]: Start difference. First operand 560 states and 742 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:27:35,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:27:35,589 INFO L93 Difference]: Finished difference Result 560 states and 742 transitions. [2024-11-27 20:27:35,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:27:35,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 97 [2024-11-27 20:27:35,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:27:35,591 INFO L225 Difference]: With dead ends: 560 [2024-11-27 20:27:35,591 INFO L226 Difference]: Without dead ends: 559 [2024-11-27 20:27:35,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:27:35,592 INFO L435 NwaCegarLoop]: 580 mSDtfsCounter, 511 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:27:35,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 1830 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:27:35,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-11-27 20:27:35,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 538. [2024-11-27 20:27:35,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 473 states have (on average 1.4503171247357294) internal successors, (686), 518 states have internal predecessors, (686), 19 states have call successors, (19), 7 states have call predecessors, (19), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 20:27:35,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 719 transitions. [2024-11-27 20:27:35,616 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 719 transitions. Word has length 97 [2024-11-27 20:27:35,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:27:35,616 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 719 transitions. [2024-11-27 20:27:35,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:27:35,616 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 719 transitions. [2024-11-27 20:27:35,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 20:27:35,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:27:35,618 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:27:35,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 20:27:35,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:35,818 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:27:35,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:27:35,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1350086693, now seen corresponding path program 1 times [2024-11-27 20:27:35,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:27:35,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390284447] [2024-11-27 20:27:35,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:27:35,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:27:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:27:43,739 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-27 20:27:43,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:27:43,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390284447] [2024-11-27 20:27:43,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390284447] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:27:43,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232815645] [2024-11-27 20:27:43,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:27:43,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:43,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:27:43,741 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:27:43,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:27:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:27:53,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 3334 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:27:53,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:27:53,610 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-27 20:27:53,610 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:27:54,277 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-27 20:27:54,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232815645] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:27:54,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:27:54,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-27 20:27:54,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196235052] [2024-11-27 20:27:54,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:27:54,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:27:54,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:27:54,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:27:54,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:27:54,279 INFO L87 Difference]: Start difference. First operand 538 states and 719 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:27:54,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:27:54,665 INFO L93 Difference]: Finished difference Result 1050 states and 1416 transitions. [2024-11-27 20:27:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:27:54,666 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 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 97 [2024-11-27 20:27:54,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:27:54,669 INFO L225 Difference]: With dead ends: 1050 [2024-11-27 20:27:54,669 INFO L226 Difference]: Without dead ends: 562 [2024-11-27 20:27:54,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:27:54,670 INFO L435 NwaCegarLoop]: 587 mSDtfsCounter, 6 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:27:54,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2919 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:27:54,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-27 20:27:54,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2024-11-27 20:27:54,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 497 states have (on average 1.4285714285714286) internal successors, (710), 542 states have internal predecessors, (710), 19 states have call successors, (19), 7 states have call predecessors, (19), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 20:27:54,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 743 transitions. [2024-11-27 20:27:54,693 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 743 transitions. Word has length 97 [2024-11-27 20:27:54,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:27:54,694 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 743 transitions. [2024-11-27 20:27:54,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:27:54,694 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 743 transitions. [2024-11-27 20:27:54,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 20:27:54,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:27:54,695 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:27:54,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 20:27:54,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:54,896 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2024-11-27 20:27:54,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:27:54,897 INFO L85 PathProgramCache]: Analyzing trace with hash -351910529, now seen corresponding path program 2 times [2024-11-27 20:27:54,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:27:54,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312077494] [2024-11-27 20:27:54,897 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:27:54,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:28:02,342 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:28:02,342 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:28:03,324 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-27 20:28:03,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:28:03,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312077494] [2024-11-27 20:28:03,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312077494] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:28:03,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841095495] [2024-11-27 20:28:03,325 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:28:03,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:03,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:28:03,327 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:28:03,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f060afe-4233-4431-a3fe-e5fb381fcceb/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process