./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/uname-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/busybox-1.22.0/uname-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 ce381cf603602873aa7825ca610797c82dd7f7e7d56006b032fdfc5a2bfa2e82 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 18:59:18,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 18:59:18,761 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-17 18:59:18,765 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 18:59:18,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 18:59:18,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 18:59:18,786 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 18:59:18,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 18:59:18,786 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 18:59:18,786 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 18:59:18,786 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 18:59:18,786 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 18:59:18,787 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 18:59:18,787 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 18:59:18,787 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 18:59:18,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 18:59:18,787 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 18:59:18,787 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 18:59:18,787 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 18:59:18,787 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 18:59:18,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 18:59:18,787 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 18:59:18,787 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 18:59:18,788 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 18:59:18,788 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 18:59:18,788 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 18:59:18,788 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> ce381cf603602873aa7825ca610797c82dd7f7e7d56006b032fdfc5a2bfa2e82 [2025-03-17 18:59:19,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 18:59:19,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 18:59:19,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 18:59:19,061 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 18:59:19,061 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 18:59:19,063 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/uname-2.i [2025-03-17 18:59:20,210 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/161bb64b8/267d176a22cd4779a6556bce8bba896d/FLAGb33230fe8 [2025-03-17 18:59:20,593 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 18:59:20,594 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/uname-2.i [2025-03-17 18:59:20,622 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/161bb64b8/267d176a22cd4779a6556bce8bba896d/FLAGb33230fe8 [2025-03-17 18:59:20,638 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/161bb64b8/267d176a22cd4779a6556bce8bba896d [2025-03-17 18:59:20,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 18:59:20,641 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 18:59:20,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 18:59:20,643 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 18:59:20,646 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 18:59:20,647 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:59:20" (1/1) ... [2025-03-17 18:59:20,648 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e40788d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:20, skipping insertion in model container [2025-03-17 18:59:20,648 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:59:20" (1/1) ... [2025-03-17 18:59:20,698 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 18:59:21,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 18:59:21,568 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 18:59:21,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 18:59:21,826 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-03-17 18:59:21,832 INFO L204 MainTranslator]: Completed translation [2025-03-17 18:59:21,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:21 WrapperNode [2025-03-17 18:59:21,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 18:59:21,834 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 18:59:21,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 18:59:21,835 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 18:59:21,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:21" (1/1) ... [2025-03-17 18:59:21,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:21" (1/1) ... [2025-03-17 18:59:21,958 INFO L138 Inliner]: procedures = 570, calls = 888, calls flagged for inlining = 24, calls inlined = 22, statements flattened = 2089 [2025-03-17 18:59:21,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 18:59:21,960 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 18:59:21,960 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 18:59:21,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 18:59:21,967 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:21" (1/1) ... [2025-03-17 18:59:21,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:21" (1/1) ... [2025-03-17 18:59:21,985 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:21" (1/1) ... [2025-03-17 18:59:21,995 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-03-17 18:59:21,997 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:21" (1/1) ... [2025-03-17 18:59:21,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:21" (1/1) ... [2025-03-17 18:59:22,060 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:21" (1/1) ... [2025-03-17 18:59:22,066 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:21" (1/1) ... [2025-03-17 18:59:22,077 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:21" (1/1) ... [2025-03-17 18:59:22,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:21" (1/1) ... [2025-03-17 18:59:22,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 18:59:22,111 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 18:59:22,112 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 18:59:22,112 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 18:59:22,113 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:21" (1/1) ... [2025-03-17 18:59:22,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 18:59:22,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 18:59:22,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 18:59:22,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 18:59:22,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 18:59:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2025-03-17 18:59:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2025-03-17 18:59:22,192 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2025-03-17 18:59:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-03-17 18:59:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-17 18:59:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 18:59:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 18:59:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-17 18:59:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 18:59:22,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 18:59:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-03-17 18:59:22,193 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-03-17 18:59:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2025-03-17 18:59:22,193 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2025-03-17 18:59:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-03-17 18:59:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-03-17 18:59:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2025-03-17 18:59:22,193 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2025-03-17 18:59:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 18:59:22,194 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 18:59:22,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 18:59:22,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-17 18:59:22,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-17 18:59:22,194 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2025-03-17 18:59:22,195 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2025-03-17 18:59:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-17 18:59:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2025-03-17 18:59:22,195 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2025-03-17 18:59:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 18:59:22,537 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 18:59:22,538 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:00:12,162 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3053: havoc getopt_long_#t~ret265#1; [2025-03-17 19:00:12,162 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2829: call ULTIMATE.dealloc(__main_~#uname_info~0#1.base, __main_~#uname_info~0#1.offset);havoc __main_~#uname_info~0#1.base, __main_~#uname_info~0#1.offset; [2025-03-17 19:00:12,162 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2404: call ULTIMATE.dealloc(getopt32_~#complementary~0#1.base, getopt32_~#complementary~0#1.offset);havoc getopt32_~#complementary~0#1.base, getopt32_~#complementary~0#1.offset; [2025-03-17 19:00:12,294 INFO L? ?]: Removed 527 outVars from TransFormulas that were not future-live. [2025-03-17 19:00:12,294 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:00:12,334 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:00:12,334 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:00:12,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:00:12 BoogieIcfgContainer [2025-03-17 19:00:12,335 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:00:12,336 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:00:12,336 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:00:12,341 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:00:12,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:59:20" (1/3) ... [2025-03-17 19:00:12,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb78521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:00:12, skipping insertion in model container [2025-03-17 19:00:12,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:21" (2/3) ... [2025-03-17 19:00:12,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb78521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:00:12, skipping insertion in model container [2025-03-17 19:00:12,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:00:12" (3/3) ... [2025-03-17 19:00:12,343 INFO L128 eAbstractionObserver]: Analyzing ICFG uname-2.i [2025-03-17 19:00:12,354 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:00:12,357 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uname-2.i that has 8 procedures, 497 locations, 1 initial locations, 37 loop locations, and 73 error locations. [2025-03-17 19:00:12,407 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:00:12,416 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;@2aad720a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:00:12,416 INFO L334 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2025-03-17 19:00:12,422 INFO L276 IsEmpty]: Start isEmpty. Operand has 497 states, 394 states have (on average 1.7055837563451777) internal successors, (672), 470 states have internal predecessors, (672), 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) [2025-03-17 19:00:12,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-17 19:00:12,427 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:00:12,427 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-17 19:00:12,428 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 70 more)] === [2025-03-17 19:00:12,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:00:12,432 INFO L85 PathProgramCache]: Analyzing trace with hash 834088, now seen corresponding path program 1 times [2025-03-17 19:00:12,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:00:12,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233371208] [2025-03-17 19:00:12,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:00:12,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:00:19,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:00:19,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:00:19,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:00:19,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:00:20,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:00:20,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:00:20,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233371208] [2025-03-17 19:00:20,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233371208] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:00:20,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:00:20,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 19:00:20,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981186330] [2025-03-17 19:00:20,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:00:20,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:00:20,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:00:20,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:00:20,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:00:20,537 INFO L87 Difference]: Start difference. First operand has 497 states, 394 states have (on average 1.7055837563451777) internal successors, (672), 470 states have internal predecessors, (672), 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 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2025-03-17 19:00:21,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:00:21,077 INFO L93 Difference]: Finished difference Result 907 states and 1332 transitions. [2025-03-17 19:00:21,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:00:21,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2025-03-17 19:00:21,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:00:21,087 INFO L225 Difference]: With dead ends: 907 [2025-03-17 19:00:21,089 INFO L226 Difference]: Without dead ends: 411 [2025-03-17 19:00:21,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:00:21,099 INFO L435 NwaCegarLoop]: 550 mSDtfsCounter, 1 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 19:00:21,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1096 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 19:00:21,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2025-03-17 19:00:21,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2025-03-17 19:00:21,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 336 states have (on average 1.6160714285714286) internal successors, (543), 392 states have internal predecessors, (543), 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) [2025-03-17 19:00:21,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 574 transitions. [2025-03-17 19:00:21,155 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 574 transitions. Word has length 3 [2025-03-17 19:00:21,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:00:21,155 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 574 transitions. [2025-03-17 19:00:21,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2025-03-17 19:00:21,155 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 574 transitions. [2025-03-17 19:00:21,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-17 19:00:21,156 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:00:21,156 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2025-03-17 19:00:21,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:00:21,156 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 70 more)] === [2025-03-17 19:00:21,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:00:21,156 INFO L85 PathProgramCache]: Analyzing trace with hash -920718467, now seen corresponding path program 1 times [2025-03-17 19:00:21,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:00:21,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534756833] [2025-03-17 19:00:21,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:00:21,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:00:28,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:00:28,805 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:00:28,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:00:28,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:00:29,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:00:29,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:00:29,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534756833] [2025-03-17 19:00:29,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534756833] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:00:29,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181208126] [2025-03-17 19:00:29,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:00:29,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:00:29,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:00:29,429 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:00:29,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 19:00:36,807 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:00:37,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:00:37,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:00:37,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:00:37,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 2829 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 19:00:37,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:00:37,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:00:37,305 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:00:37,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181208126] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:00:37,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:00:37,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2025-03-17 19:00:37,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168624439] [2025-03-17 19:00:37,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:00:37,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:00:37,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:00:37,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:00:37,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:00:37,307 INFO L87 Difference]: Start difference. First operand 411 states and 574 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:00:41,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 19:00:42,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:00:42,449 INFO L93 Difference]: Finished difference Result 411 states and 574 transitions. [2025-03-17 19:00:42,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:00:42,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-03-17 19:00:42,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:00:42,453 INFO L225 Difference]: With dead ends: 411 [2025-03-17 19:00:42,453 INFO L226 Difference]: Without dead ends: 410 [2025-03-17 19:00:42,454 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:00:42,454 INFO L435 NwaCegarLoop]: 544 mSDtfsCounter, 1 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2025-03-17 19:00:42,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1630 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2025-03-17 19:00:42,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2025-03-17 19:00:42,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2025-03-17 19:00:42,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 336 states have (on average 1.6130952380952381) internal successors, (542), 391 states have internal predecessors, (542), 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) [2025-03-17 19:00:42,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 573 transitions. [2025-03-17 19:00:42,472 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 573 transitions. Word has length 6 [2025-03-17 19:00:42,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:00:42,472 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 573 transitions. [2025-03-17 19:00:42,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:00:42,472 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 573 transitions. [2025-03-17 19:00:42,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 19:00:42,472 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:00:42,472 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2025-03-17 19:00:42,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 19:00:42,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:00:42,673 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 70 more)] === [2025-03-17 19:00:42,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:00:42,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1522499370, now seen corresponding path program 1 times [2025-03-17 19:00:42,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:00:42,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176849603] [2025-03-17 19:00:42,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:00:42,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:00:49,997 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:00:50,053 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:00:50,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:00:50,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:00:50,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:00:50,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:00:50,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176849603] [2025-03-17 19:00:50,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176849603] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:00:50,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:00:50,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:00:50,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859807674] [2025-03-17 19:00:50,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:00:50,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:00:50,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:00:50,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:00:50,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:00:50,312 INFO L87 Difference]: Start difference. First operand 410 states and 573 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2025-03-17 19:00:50,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:00:50,783 INFO L93 Difference]: Finished difference Result 410 states and 573 transitions. [2025-03-17 19:00:50,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:00:50,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2025-03-17 19:00:50,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 19:00:50,787 INFO L225 Difference]: With dead ends: 410 [2025-03-17 19:00:50,787 INFO L226 Difference]: Without dead ends: 409 [2025-03-17 19:00:50,787 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 [2025-03-17 19:00:50,788 INFO L435 NwaCegarLoop]: 545 mSDtfsCounter, 0 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 19:00:50,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1088 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 19:00:50,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2025-03-17 19:00:50,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 407. [2025-03-17 19:00:50,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 334 states have (on average 1.6137724550898203) internal successors, (539), 388 states have internal predecessors, (539), 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) [2025-03-17 19:00:50,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 570 transitions. [2025-03-17 19:00:50,803 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 570 transitions. Word has length 7 [2025-03-17 19:00:50,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 19:00:50,804 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 570 transitions. [2025-03-17 19:00:50,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2025-03-17 19:00:50,804 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 570 transitions. [2025-03-17 19:00:50,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-17 19:00:50,804 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 19:00:50,804 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:00:50,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 19:00:50,805 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 70 more)] === [2025-03-17 19:00:50,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:00:50,805 INFO L85 PathProgramCache]: Analyzing trace with hash -13722392, now seen corresponding path program 1 times [2025-03-17 19:00:50,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:00:50,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656343060] [2025-03-17 19:00:50,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:00:50,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:00:57,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 19:00:57,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 19:00:57,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:00:57,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:00:58,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:00:58,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:00:58,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656343060] [2025-03-17 19:00:58,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656343060] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:00:58,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104512770] [2025-03-17 19:00:58,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:00:58,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:00:58,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:00:58,361 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:00:58,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process