./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 798a7b37 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-?-798a7b3-m [2025-03-04 14:43:07,313 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 14:43:07,356 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-04 14:43:07,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 14:43:07,362 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 14:43:07,383 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 14:43:07,384 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 14:43:07,384 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 14:43:07,384 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 14:43:07,384 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 14:43:07,384 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 14:43:07,384 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 14:43:07,385 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 14:43:07,388 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 14:43:07,388 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 14:43:07,389 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 14:43:07,389 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 14:43:07,389 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 14:43:07,389 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 14:43:07,389 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 14:43:07,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 14:43:07,389 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 14:43:07,389 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 14:43:07,389 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 14:43:07,389 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 14:43:07,389 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 14:43:07,389 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 14:43:07,389 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 14:43:07,389 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 14:43:07,389 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 14:43:07,389 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 14:43:07,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 14:43:07,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 14:43:07,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 14:43:07,390 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 14:43:07,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 14:43:07,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 14:43:07,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 14:43:07,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 14:43:07,390 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 14:43:07,390 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 14:43:07,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 14:43:07,390 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 [2025-03-04 14:43:07,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 14:43:07,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 14:43:07,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 14:43:07,621 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 14:43:07,621 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 14:43:07,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/uname-2.i [2025-03-04 14:43:08,810 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c66d1eb5/59102dafe5114b43b635f4fd4f0f552a/FLAG2d4784610 [2025-03-04 14:43:09,243 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 14:43:09,245 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/uname-2.i [2025-03-04 14:43:09,274 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c66d1eb5/59102dafe5114b43b635f4fd4f0f552a/FLAG2d4784610 [2025-03-04 14:43:09,396 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c66d1eb5/59102dafe5114b43b635f4fd4f0f552a [2025-03-04 14:43:09,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 14:43:09,399 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 14:43:09,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 14:43:09,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 14:43:09,404 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 14:43:09,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:43:09" (1/1) ... [2025-03-04 14:43:09,405 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425d401b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:43:09, skipping insertion in model container [2025-03-04 14:43:09,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:43:09" (1/1) ... [2025-03-04 14:43:09,447 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 14:43:10,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 14:43:10,312 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 14:43:10,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 14:43:10,576 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-03-04 14:43:10,582 INFO L204 MainTranslator]: Completed translation [2025-03-04 14:43:10,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:43:10 WrapperNode [2025-03-04 14:43:10,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 14:43:10,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 14:43:10,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 14:43:10,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 14:43:10,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:43:10" (1/1) ... [2025-03-04 14:43:10,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:43:10" (1/1) ... [2025-03-04 14:43:10,687 INFO L138 Inliner]: procedures = 570, calls = 888, calls flagged for inlining = 24, calls inlined = 22, statements flattened = 2089 [2025-03-04 14:43:10,687 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 14:43:10,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 14:43:10,688 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 14:43:10,688 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 14:43:10,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:43:10" (1/1) ... [2025-03-04 14:43:10,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:43:10" (1/1) ... [2025-03-04 14:43:10,711 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:43:10" (1/1) ... [2025-03-04 14:43:10,719 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-03-04 14:43:10,721 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:43:10" (1/1) ... [2025-03-04 14:43:10,722 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:43:10" (1/1) ... [2025-03-04 14:43:10,780 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:43:10" (1/1) ... [2025-03-04 14:43:10,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:43:10" (1/1) ... [2025-03-04 14:43:10,795 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:43:10" (1/1) ... [2025-03-04 14:43:10,802 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:43:10" (1/1) ... [2025-03-04 14:43:10,824 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 14:43:10,825 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 14:43:10,826 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 14:43:10,826 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 14:43:10,827 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:43:10" (1/1) ... [2025-03-04 14:43:10,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 14:43:10,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:43:10,854 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) [2025-03-04 14:43:10,857 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 [2025-03-04 14:43:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 14:43:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2025-03-04 14:43:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2025-03-04 14:43:10,871 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2025-03-04 14:43:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-03-04 14:43:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 14:43:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 14:43:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 14:43:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-04 14:43:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 14:43:10,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 14:43:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-03-04 14:43:10,871 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-03-04 14:43:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2025-03-04 14:43:10,871 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2025-03-04 14:43:10,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-03-04 14:43:10,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-03-04 14:43:10,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2025-03-04 14:43:10,872 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2025-03-04 14:43:10,872 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 14:43:10,872 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 14:43:10,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 14:43:10,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-04 14:43:10,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-04 14:43:10,872 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2025-03-04 14:43:10,872 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2025-03-04 14:43:10,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 14:43:10,872 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2025-03-04 14:43:10,872 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2025-03-04 14:43:10,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 14:43:11,212 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 14:43:11,214 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 14:43:17,145 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3053: havoc getopt_long_#t~ret265#1; [2025-03-04 14:43:17,146 INFO L1325 $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; [2025-03-04 14:43:17,146 INFO L1325 $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; [2025-03-04 14:43:17,272 INFO L? ?]: Removed 562 outVars from TransFormulas that were not future-live. [2025-03-04 14:43:17,273 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 14:43:17,304 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 14:43:17,306 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 14:43:17,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:43:17 BoogieIcfgContainer [2025-03-04 14:43:17,307 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 14:43:17,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 14:43:17,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 14:43:17,312 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 14:43:17,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:43:09" (1/3) ... [2025-03-04 14:43:17,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e06766e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:43:17, skipping insertion in model container [2025-03-04 14:43:17,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:43:10" (2/3) ... [2025-03-04 14:43:17,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e06766e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:43:17, skipping insertion in model container [2025-03-04 14:43:17,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:43:17" (3/3) ... [2025-03-04 14:43:17,314 INFO L128 eAbstractionObserver]: Analyzing ICFG uname-2.i [2025-03-04 14:43:17,325 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 14:43:17,328 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uname-2.i that has 8 procedures, 510 locations, 1 initial locations, 37 loop locations, and 73 error locations. [2025-03-04 14:43:17,380 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 14:43:17,389 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;@5ac63289, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 14:43:17,390 INFO L334 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2025-03-04 14:43:17,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 510 states, 407 states have (on average 1.683046683046683) internal successors, (685), 483 states have internal predecessors, (685), 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) [2025-03-04 14:43:17,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-04 14:43:17,399 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:43:17,399 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-04 14:43:17,400 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)] === [2025-03-04 14:43:17,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:43:17,404 INFO L85 PathProgramCache]: Analyzing trace with hash 26503999, now seen corresponding path program 1 times [2025-03-04 14:43:17,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:43:17,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440269839] [2025-03-04 14:43:17,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:43:17,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:43:23,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 14:43:24,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 14:43:24,026 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:43:24,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:43:24,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:43:24,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:43:24,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440269839] [2025-03-04 14:43:24,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440269839] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:43:24,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:43:24,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 14:43:24,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582690348] [2025-03-04 14:43:24,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:43:24,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:43:24,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:43:24,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:43:24,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:43:24,555 INFO L87 Difference]: Start difference. First operand has 510 states, 407 states have (on average 1.683046683046683) internal successors, (685), 483 states have internal predecessors, (685), 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 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-03-04 14:43:25,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:43:25,076 INFO L93 Difference]: Finished difference Result 925 states and 1350 transitions. [2025-03-04 14:43:25,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:43:25,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2025-03-04 14:43:25,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:43:25,085 INFO L225 Difference]: With dead ends: 925 [2025-03-04 14:43:25,085 INFO L226 Difference]: Without dead ends: 417 [2025-03-04 14:43:25,089 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 [2025-03-04 14:43:25,092 INFO L435 NwaCegarLoop]: 556 mSDtfsCounter, 1 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1108 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 [2025-03-04 14:43:25,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1108 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 14:43:25,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2025-03-04 14:43:25,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2025-03-04 14:43:25,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 342 states have (on average 1.605263157894737) internal successors, (549), 398 states have internal predecessors, (549), 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) [2025-03-04 14:43:25,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 580 transitions. [2025-03-04 14:43:25,152 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 580 transitions. Word has length 4 [2025-03-04 14:43:25,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:43:25,152 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 580 transitions. [2025-03-04 14:43:25,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-03-04 14:43:25,152 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 580 transitions. [2025-03-04 14:43:25,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-04 14:43:25,152 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:43:25,152 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2025-03-04 14:43:25,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 14:43:25,153 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)] === [2025-03-04 14:43:25,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:43:25,153 INFO L85 PathProgramCache]: Analyzing trace with hash -692558694, now seen corresponding path program 1 times [2025-03-04 14:43:25,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:43:25,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298008150] [2025-03-04 14:43:25,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:43:25,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:43:31,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 14:43:31,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 14:43:31,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:43:31,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:43:31,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:43:31,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:43:31,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298008150] [2025-03-04 14:43:31,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298008150] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:43:31,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282560886] [2025-03-04 14:43:31,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:43:31,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:43:31,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:43:31,777 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) [2025-03-04 14:43:31,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 14:43:38,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 14:43:38,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 14:43:38,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:43:38,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:43:38,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 2830 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 14:43:38,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:43:38,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:43:38,454 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 14:43:38,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282560886] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:43:38,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 14:43:38,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-04 14:43:38,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635577314] [2025-03-04 14:43:38,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:43:38,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 14:43:38,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:43:38,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 14:43:38,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 14:43:38,455 INFO L87 Difference]: Start difference. First operand 417 states and 580 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2025-03-04 14:43:38,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:43:38,889 INFO L93 Difference]: Finished difference Result 417 states and 580 transitions. [2025-03-04 14:43:38,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 14:43:38,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2025-03-04 14:43:38,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:43:38,894 INFO L225 Difference]: With dead ends: 417 [2025-03-04 14:43:38,894 INFO L226 Difference]: Without dead ends: 416 [2025-03-04 14:43:38,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 14:43:38,894 INFO L435 NwaCegarLoop]: 550 mSDtfsCounter, 1 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 14:43:38,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1099 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 14:43:38,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2025-03-04 14:43:38,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2025-03-04 14:43:38,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 342 states have (on average 1.6023391812865497) internal successors, (548), 397 states have internal predecessors, (548), 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) [2025-03-04 14:43:38,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 579 transitions. [2025-03-04 14:43:38,906 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 579 transitions. Word has length 7 [2025-03-04 14:43:38,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:43:38,907 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 579 transitions. [2025-03-04 14:43:38,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2025-03-04 14:43:38,907 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 579 transitions. [2025-03-04 14:43:38,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-04 14:43:38,907 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:43:38,907 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2025-03-04 14:43:38,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 14:43:39,107 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 [2025-03-04 14:43:39,108 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)] === [2025-03-04 14:43:39,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:43:39,108 INFO L85 PathProgramCache]: Analyzing trace with hash 5517761, now seen corresponding path program 1 times [2025-03-04 14:43:39,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:43:39,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720047191] [2025-03-04 14:43:39,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:43:39,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:43:45,086 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 14:43:45,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 14:43:45,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:43:45,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:43:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 14:43:45,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:43:45,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720047191] [2025-03-04 14:43:45,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720047191] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:43:45,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:43:45,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 14:43:45,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274427783] [2025-03-04 14:43:45,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:43:45,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:43:45,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:43:45,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:43:45,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:43:45,380 INFO L87 Difference]: Start difference. First operand 416 states and 579 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-03-04 14:43:45,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:43:45,748 INFO L93 Difference]: Finished difference Result 416 states and 579 transitions. [2025-03-04 14:43:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:43:45,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2025-03-04 14:43:45,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:43:45,750 INFO L225 Difference]: With dead ends: 416 [2025-03-04 14:43:45,750 INFO L226 Difference]: Without dead ends: 415 [2025-03-04 14:43:45,750 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 [2025-03-04 14:43:45,751 INFO L435 NwaCegarLoop]: 551 mSDtfsCounter, 0 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 14:43:45,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1100 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 14:43:45,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2025-03-04 14:43:45,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 413. [2025-03-04 14:43:45,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 340 states have (on average 1.6029411764705883) internal successors, (545), 394 states have internal predecessors, (545), 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) [2025-03-04 14:43:45,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 576 transitions. [2025-03-04 14:43:45,761 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 576 transitions. Word has length 8 [2025-03-04 14:43:45,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:43:45,761 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 576 transitions. [2025-03-04 14:43:45,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-03-04 14:43:45,761 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 576 transitions. [2025-03-04 14:43:45,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-04 14:43:45,762 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:43:45,762 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:43:45,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 14:43:45,762 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)] === [2025-03-04 14:43:45,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:43:45,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1878707927, now seen corresponding path program 1 times [2025-03-04 14:43:45,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:43:45,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372432636] [2025-03-04 14:43:45,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:43:45,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:43:51,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 14:43:51,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 14:43:51,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:43:51,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:43:51,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:43:51,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:43:51,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372432636] [2025-03-04 14:43:51,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372432636] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:43:51,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857183719] [2025-03-04 14:43:51,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:43:51,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:43:51,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:43:51,948 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) [2025-03-04 14:43:51,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 14:43:58,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 14:43:58,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 14:43:58,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:43:58,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:43:58,350 INFO L256 TraceCheckSpWp]: Trace formula consists of 2847 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 14:43:58,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:43:58,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 14:43:58,439 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 14:43:58,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857183719] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:43:58,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 14:43:58,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-04 14:43:58,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532722300] [2025-03-04 14:43:58,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:43:58,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:43:58,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:43:58,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:43:58,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 14:43:58,441 INFO L87 Difference]: Start difference. First operand 413 states and 576 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2025-03-04 14:43:58,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:43:58,708 INFO L93 Difference]: Finished difference Result 413 states and 576 transitions. [2025-03-04 14:43:58,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:43:58,709 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), 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 12 [2025-03-04 14:43:58,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:43:58,710 INFO L225 Difference]: With dead ends: 413 [2025-03-04 14:43:58,710 INFO L226 Difference]: Without dead ends: 411 [2025-03-04 14:43:58,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 14:43:58,711 INFO L435 NwaCegarLoop]: 544 mSDtfsCounter, 507 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 14:43:58,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 593 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 14:43:58,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2025-03-04 14:43:58,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2025-03-04 14:43:58,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 340 states have (on average 1.5970588235294119) 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) [2025-03-04 14:43:58,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 574 transitions. [2025-03-04 14:43:58,728 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 574 transitions. Word has length 12 [2025-03-04 14:43:58,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:43:58,729 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 574 transitions. [2025-03-04 14:43:58,729 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), 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) [2025-03-04 14:43:58,729 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 574 transitions. [2025-03-04 14:43:58,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-04 14:43:58,730 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:43:58,730 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:43:58,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 14:43:58,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-04 14:43:58,933 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 70 more)] === [2025-03-04 14:43:58,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:43:58,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1889597196, now seen corresponding path program 1 times [2025-03-04 14:43:58,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:43:58,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840321116] [2025-03-04 14:43:58,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:43:58,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:04,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 14:44:04,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 14:44:04,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:04,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:05,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:44:05,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:05,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840321116] [2025-03-04 14:44:05,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840321116] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:44:05,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779329840] [2025-03-04 14:44:05,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:05,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:44:05,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:44:05,055 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 14:44:05,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 14:44:11,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 14:44:11,500 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 14:44:11,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:11,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:11,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 2848 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 14:44:11,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:44:11,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:44:11,622 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 14:44:11,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:44:11,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779329840] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 14:44:11,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 14:44:11,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-03-04 14:44:11,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860732744] [2025-03-04 14:44:11,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 14:44:11,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 14:44:11,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:11,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 14:44:11,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 14:44:11,826 INFO L87 Difference]: Start difference. First operand 411 states and 574 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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) [2025-03-04 14:44:12,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:12,447 INFO L93 Difference]: Finished difference Result 825 states and 1153 transitions. [2025-03-04 14:44:12,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 14:44:12,448 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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 13 [2025-03-04 14:44:12,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:12,449 INFO L225 Difference]: With dead ends: 825 [2025-03-04 14:44:12,449 INFO L226 Difference]: Without dead ends: 420 [2025-03-04 14:44:12,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 14:44:12,451 INFO L435 NwaCegarLoop]: 549 mSDtfsCounter, 4 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:12,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1643 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-04 14:44:12,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2025-03-04 14:44:12,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2025-03-04 14:44:12,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 349 states have (on average 1.5816618911174785) internal successors, (552), 401 states have internal predecessors, (552), 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) [2025-03-04 14:44:12,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 583 transitions. [2025-03-04 14:44:12,460 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 583 transitions. Word has length 13 [2025-03-04 14:44:12,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:12,460 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 583 transitions. [2025-03-04 14:44:12,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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) [2025-03-04 14:44:12,461 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 583 transitions. [2025-03-04 14:44:12,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-04 14:44:12,461 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:12,461 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:12,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 14:44:12,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:44:12,662 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 70 more)] === [2025-03-04 14:44:12,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:12,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1521410609, now seen corresponding path program 2 times [2025-03-04 14:44:12,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:12,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233408191] [2025-03-04 14:44:12,662 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 14:44:12,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:18,428 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-03-04 14:44:18,505 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 10 of 22 statements. [2025-03-04 14:44:18,505 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 14:44:18,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-04 14:44:19,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:19,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233408191] [2025-03-04 14:44:19,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233408191] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:19,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:44:19,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 14:44:19,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071545358] [2025-03-04 14:44:19,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:19,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 14:44:19,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:19,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 14:44:19,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 14:44:19,136 INFO L87 Difference]: Start difference. First operand 420 states and 583 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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) [2025-03-04 14:44:19,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:19,912 INFO L93 Difference]: Finished difference Result 420 states and 583 transitions. [2025-03-04 14:44:19,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 14:44:19,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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 22 [2025-03-04 14:44:19,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:19,914 INFO L225 Difference]: With dead ends: 420 [2025-03-04 14:44:19,914 INFO L226 Difference]: Without dead ends: 418 [2025-03-04 14:44:19,915 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 [2025-03-04 14:44:19,915 INFO L435 NwaCegarLoop]: 541 mSDtfsCounter, 506 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:19,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 1664 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-04 14:44:19,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2025-03-04 14:44:19,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2025-03-04 14:44:19,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 349 states have (on average 1.5759312320916905) internal successors, (550), 399 states have internal predecessors, (550), 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) [2025-03-04 14:44:19,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 581 transitions. [2025-03-04 14:44:19,924 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 581 transitions. Word has length 22 [2025-03-04 14:44:19,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:19,924 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 581 transitions. [2025-03-04 14:44:19,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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) [2025-03-04 14:44:19,925 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 581 transitions. [2025-03-04 14:44:19,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-04 14:44:19,925 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:19,925 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:19,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 14:44:19,925 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 70 more)] === [2025-03-04 14:44:19,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:19,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1236192671, now seen corresponding path program 1 times [2025-03-04 14:44:19,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:19,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006846455] [2025-03-04 14:44:19,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:19,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:25,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 14:44:25,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 14:44:25,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:25,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:26,006 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-04 14:44:26,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:26,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006846455] [2025-03-04 14:44:26,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006846455] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:26,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:44:26,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 14:44:26,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131312168] [2025-03-04 14:44:26,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:26,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:44:26,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:26,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:44:26,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:44:26,008 INFO L87 Difference]: Start difference. First operand 418 states and 581 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2025-03-04 14:44:26,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:26,426 INFO L93 Difference]: Finished difference Result 819 states and 1146 transitions. [2025-03-04 14:44:26,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:44:26,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 [2025-03-04 14:44:26,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:26,429 INFO L225 Difference]: With dead ends: 819 [2025-03-04 14:44:26,429 INFO L226 Difference]: Without dead ends: 421 [2025-03-04 14:44:26,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:44:26,430 INFO L435 NwaCegarLoop]: 547 mSDtfsCounter, 2 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:26,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1089 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 14:44:26,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2025-03-04 14:44:26,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2025-03-04 14:44:26,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 352 states have (on average 1.5710227272727273) internal successors, (553), 402 states have internal predecessors, (553), 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) [2025-03-04 14:44:26,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 584 transitions. [2025-03-04 14:44:26,443 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 584 transitions. Word has length 27 [2025-03-04 14:44:26,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:26,443 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 584 transitions. [2025-03-04 14:44:26,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2025-03-04 14:44:26,444 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 584 transitions. [2025-03-04 14:44:26,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-04 14:44:26,444 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:26,445 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:26,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 14:44:26,445 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 70 more)] === [2025-03-04 14:44:26,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:26,447 INFO L85 PathProgramCache]: Analyzing trace with hash -333066741, now seen corresponding path program 1 times [2025-03-04 14:44:26,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:26,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366307100] [2025-03-04 14:44:26,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:26,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:32,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 14:44:32,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 14:44:32,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:32,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:32,575 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-04 14:44:32,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:32,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366307100] [2025-03-04 14:44:32,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366307100] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:32,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:44:32,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 14:44:32,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843970555] [2025-03-04 14:44:32,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:32,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:44:32,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:32,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:44:32,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:44:32,576 INFO L87 Difference]: Start difference. First operand 421 states and 584 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2025-03-04 14:44:33,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:33,162 INFO L93 Difference]: Finished difference Result 719 states and 1023 transitions. [2025-03-04 14:44:33,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:44:33,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 28 [2025-03-04 14:44:33,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:33,165 INFO L225 Difference]: With dead ends: 719 [2025-03-04 14:44:33,165 INFO L226 Difference]: Without dead ends: 717 [2025-03-04 14:44:33,165 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 [2025-03-04 14:44:33,166 INFO L435 NwaCegarLoop]: 542 mSDtfsCounter, 411 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:33,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1076 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-04 14:44:33,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2025-03-04 14:44:33,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 425. [2025-03-04 14:44:33,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 356 states have (on average 1.5674157303370786) internal successors, (558), 406 states have internal predecessors, (558), 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) [2025-03-04 14:44:33,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 589 transitions. [2025-03-04 14:44:33,180 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 589 transitions. Word has length 28 [2025-03-04 14:44:33,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:33,181 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 589 transitions. [2025-03-04 14:44:33,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2025-03-04 14:44:33,181 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 589 transitions. [2025-03-04 14:44:33,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-04 14:44:33,181 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:33,181 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:33,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 14:44:33,182 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 70 more)] === [2025-03-04 14:44:33,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:33,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1923161366, now seen corresponding path program 1 times [2025-03-04 14:44:33,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:33,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615712930] [2025-03-04 14:44:33,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:33,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:39,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 14:44:39,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 14:44:39,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:39,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:39,362 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-04 14:44:39,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:39,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615712930] [2025-03-04 14:44:39,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615712930] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:39,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:44:39,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 14:44:39,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962623604] [2025-03-04 14:44:39,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:39,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:44:39,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:39,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:44:39,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:44:39,364 INFO L87 Difference]: Start difference. First operand 425 states and 589 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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) [2025-03-04 14:44:39,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:39,839 INFO L93 Difference]: Finished difference Result 438 states and 604 transitions. [2025-03-04 14:44:39,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:44:39,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 30 [2025-03-04 14:44:39,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:39,841 INFO L225 Difference]: With dead ends: 438 [2025-03-04 14:44:39,842 INFO L226 Difference]: Without dead ends: 436 [2025-03-04 14:44:39,842 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 [2025-03-04 14:44:39,842 INFO L435 NwaCegarLoop]: 545 mSDtfsCounter, 3 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:39,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1086 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 14:44:39,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2025-03-04 14:44:39,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2025-03-04 14:44:39,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 365 states have (on average 1.5643835616438355) internal successors, (571), 415 states have internal predecessors, (571), 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) [2025-03-04 14:44:39,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 602 transitions. [2025-03-04 14:44:39,857 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 602 transitions. Word has length 30 [2025-03-04 14:44:39,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:39,858 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 602 transitions. [2025-03-04 14:44:39,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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) [2025-03-04 14:44:39,859 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 602 transitions. [2025-03-04 14:44:39,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-04 14:44:39,859 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:39,860 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:39,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 14:44:39,860 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 70 more)] === [2025-03-04 14:44:39,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:39,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1923161206, now seen corresponding path program 1 times [2025-03-04 14:44:39,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:39,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552173749] [2025-03-04 14:44:39,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:39,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms