./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/wc-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/wc-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 b8000edc920fe8a32bdc36b56c8860a94e8d6d6bafdb81a520b0f73a8e153aaa --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 14:44:25,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 14:44:25,080 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-04 14:44:25,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 14:44:25,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 14:44:25,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 14:44:25,111 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 14:44:25,111 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 14:44:25,112 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 14:44:25,112 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 14:44:25,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 14:44:25,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 14:44:25,113 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 14:44:25,113 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 14:44:25,113 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 14:44:25,113 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 14:44:25,113 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 14:44:25,114 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 14:44:25,114 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 14:44:25,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 14:44:25,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 14:44:25,114 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 14:44:25,114 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 14:44:25,114 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 14:44:25,114 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 14:44:25,114 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 14:44:25,114 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 14:44:25,115 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 14:44:25,115 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 14:44:25,115 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 14:44:25,115 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 14:44:25,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 14:44:25,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 14:44:25,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 14:44:25,116 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 14:44:25,116 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 14:44:25,116 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 14:44:25,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 14:44:25,116 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 14:44:25,116 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 14:44:25,116 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 14:44:25,116 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 14:44:25,116 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 -> b8000edc920fe8a32bdc36b56c8860a94e8d6d6bafdb81a520b0f73a8e153aaa [2025-03-04 14:44:25,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 14:44:25,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 14:44:25,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 14:44:25,361 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 14:44:25,361 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 14:44:25,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/wc-2.i [2025-03-04 14:44:26,560 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd14efcf4/bbaf69ee8522467a990e575b046f31ba/FLAGdb2e1d5ce [2025-03-04 14:44:26,876 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 14:44:26,879 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/wc-2.i [2025-03-04 14:44:26,903 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd14efcf4/bbaf69ee8522467a990e575b046f31ba/FLAGdb2e1d5ce [2025-03-04 14:44:26,916 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd14efcf4/bbaf69ee8522467a990e575b046f31ba [2025-03-04 14:44:26,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 14:44:26,918 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 14:44:26,919 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 14:44:26,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 14:44:26,922 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 14:44:26,923 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:44:26" (1/1) ... [2025-03-04 14:44:26,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e76afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:44:26, skipping insertion in model container [2025-03-04 14:44:26,924 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:44:26" (1/1) ... [2025-03-04 14:44:26,976 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 14:44:27,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 14:44:27,730 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 14:44:27,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 14:44:27,998 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-03-04 14:44:28,004 INFO L204 MainTranslator]: Completed translation [2025-03-04 14:44:28,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:44:28 WrapperNode [2025-03-04 14:44:28,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 14:44:28,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 14:44:28,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 14:44:28,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 14:44:28,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:44:28" (1/1) ... [2025-03-04 14:44:28,038 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:44:28" (1/1) ... [2025-03-04 14:44:28,113 INFO L138 Inliner]: procedures = 577, calls = 807, calls flagged for inlining = 31, calls inlined = 29, statements flattened = 2169 [2025-03-04 14:44:28,113 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 14:44:28,113 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 14:44:28,113 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 14:44:28,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 14:44:28,120 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:44:28" (1/1) ... [2025-03-04 14:44:28,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:44:28" (1/1) ... [2025-03-04 14:44:28,140 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:44:28" (1/1) ... [2025-03-04 14:44:28,150 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-03-04 14:44:28,152 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:44:28" (1/1) ... [2025-03-04 14:44:28,153 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:44:28" (1/1) ... [2025-03-04 14:44:28,213 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:44:28" (1/1) ... [2025-03-04 14:44:28,222 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:44:28" (1/1) ... [2025-03-04 14:44:28,235 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:44:28" (1/1) ... [2025-03-04 14:44:28,241 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:44:28" (1/1) ... [2025-03-04 14:44:28,257 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 14:44:28,258 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 14:44:28,259 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 14:44:28,259 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 14:44:28,260 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:44:28" (1/1) ... [2025-03-04 14:44:28,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 14:44:28,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:44:28,289 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 14:44:28,293 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 14:44:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 14:44:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2025-03-04 14:44:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2025-03-04 14:44:28,311 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2025-03-04 14:44:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-03-04 14:44:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 14:44:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 14:44:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 14:44:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-04 14:44:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 14:44:28,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 14:44:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-03-04 14:44:28,312 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-03-04 14:44:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2025-03-04 14:44:28,312 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2025-03-04 14:44:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-03-04 14:44:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-03-04 14:44:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure bb_simple_perror_msg [2025-03-04 14:44:28,312 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_simple_perror_msg [2025-03-04 14:44:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2025-03-04 14:44:28,313 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2025-03-04 14:44:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 14:44:28,313 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 14:44:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 14:44:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-04 14:44:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-04 14:44:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 14:44:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2025-03-04 14:44:28,313 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2025-03-04 14:44:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 14:44:28,647 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 14:44:28,648 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 14:44:33,880 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2911: call ULTIMATE.dealloc(__main_~#counts~0#1.base, __main_~#counts~0#1.offset);havoc __main_~#counts~0#1.base, __main_~#counts~0#1.offset;call ULTIMATE.dealloc(__main_~#totals~0#1.base, __main_~#totals~0#1.offset);havoc __main_~#totals~0#1.base, __main_~#totals~0#1.offset; [2025-03-04 14:44:33,881 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3215: havoc getopt_long_#t~ret291#1; [2025-03-04 14:44:33,881 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2962: havoc __main_~return_value_ferror$2~0#1; [2025-03-04 14:44:33,881 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3164: havoc _IO_getc_#t~nondet262#1; [2025-03-04 14:44:33,881 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2375: havoc fclose_if_not_stdin_#t~bitwise74#1; [2025-03-04 14:44:33,881 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2444: 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 14:44:34,044 INFO L? ?]: Removed 645 outVars from TransFormulas that were not future-live. [2025-03-04 14:44:34,045 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 14:44:34,086 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 14:44:34,088 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 14:44:34,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:44:34 BoogieIcfgContainer [2025-03-04 14:44:34,090 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 14:44:34,092 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 14:44:34,092 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 14:44:34,095 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 14:44:34,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:44:26" (1/3) ... [2025-03-04 14:44:34,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631904bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:44:34, skipping insertion in model container [2025-03-04 14:44:34,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:44:28" (2/3) ... [2025-03-04 14:44:34,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631904bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:44:34, skipping insertion in model container [2025-03-04 14:44:34,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:44:34" (3/3) ... [2025-03-04 14:44:34,098 INFO L128 eAbstractionObserver]: Analyzing ICFG wc-2.i [2025-03-04 14:44:34,108 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 14:44:34,111 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG wc-2.i that has 8 procedures, 571 locations, 1 initial locations, 33 loop locations, and 66 error locations. [2025-03-04 14:44:34,167 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 14:44:34,177 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;@2c593a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 14:44:34,178 INFO L334 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2025-03-04 14:44:34,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 571 states, 475 states have (on average 1.654736842105263) internal successors, (786), 543 states have internal predecessors, (786), 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 14:44:34,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-04 14:44:34,187 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:34,188 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-04 14:44:34,188 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:34,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:34,193 INFO L85 PathProgramCache]: Analyzing trace with hash 30198079, now seen corresponding path program 1 times [2025-03-04 14:44:34,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:34,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766960685] [2025-03-04 14:44:34,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:34,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:34,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 14:44:34,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 14:44:34,810 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:34,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:35,101 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 14:44:35,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:35,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766960685] [2025-03-04 14:44:35,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766960685] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:35,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:44:35,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 14:44:35,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710658727] [2025-03-04 14:44:35,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:35,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:44:35,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:35,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:44:35,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:44:35,124 INFO L87 Difference]: Start difference. First operand has 571 states, 475 states have (on average 1.654736842105263) internal successors, (786), 543 states have internal predecessors, (786), 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 14:44:35,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:35,323 INFO L93 Difference]: Finished difference Result 1046 states and 1551 transitions. [2025-03-04 14:44:35,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:44:35,326 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 14:44:35,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:35,335 INFO L225 Difference]: With dead ends: 1046 [2025-03-04 14:44:35,335 INFO L226 Difference]: Without dead ends: 478 [2025-03-04 14:44:35,339 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 14:44:35,340 INFO L435 NwaCegarLoop]: 646 mSDtfsCounter, 1 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:35,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1288 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 14:44:35,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2025-03-04 14:44:35,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2025-03-04 14:44:35,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 409 states have (on average 1.5745721271393642) internal successors, (644), 458 states have internal predecessors, (644), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 14:44:35,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 675 transitions. [2025-03-04 14:44:35,398 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 675 transitions. Word has length 4 [2025-03-04 14:44:35,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:35,398 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 675 transitions. [2025-03-04 14:44:35,398 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 14:44:35,398 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 675 transitions. [2025-03-04 14:44:35,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-04 14:44:35,398 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:35,399 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2025-03-04 14:44:35,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 14:44:35,399 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:35,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:35,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1983715346, now seen corresponding path program 1 times [2025-03-04 14:44:35,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:35,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787547114] [2025-03-04 14:44:35,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:35,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:35,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 14:44:35,760 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 14:44:35,760 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:35,760 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:35,987 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 14:44:35,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:35,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787547114] [2025-03-04 14:44:35,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787547114] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:44:35,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533385800] [2025-03-04 14:44:35,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:35,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:44:35,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:44:35,991 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 14:44:35,992 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 14:44:36,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 14:44:36,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 14:44:36,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:36,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:36,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 1535 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 14:44:36,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:44:36,699 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 14:44:36,699 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 14:44:36,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533385800] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:36,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 14:44:36,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-04 14:44:36,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652498091] [2025-03-04 14:44:36,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:36,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 14:44:36,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:36,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 14:44:36,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 14:44:36,701 INFO L87 Difference]: Start difference. First operand 478 states and 675 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 14:44:36,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:36,859 INFO L93 Difference]: Finished difference Result 478 states and 675 transitions. [2025-03-04 14:44:36,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 14:44:36,860 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 14:44:36,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:36,862 INFO L225 Difference]: With dead ends: 478 [2025-03-04 14:44:36,862 INFO L226 Difference]: Without dead ends: 477 [2025-03-04 14:44:36,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 14:44:36,863 INFO L435 NwaCegarLoop]: 641 mSDtfsCounter, 1 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:36,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1281 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 14:44:36,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2025-03-04 14:44:36,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 477. [2025-03-04 14:44:36,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 409 states have (on average 1.5721271393643033) internal successors, (643), 457 states have internal predecessors, (643), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 14:44:36,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 674 transitions. [2025-03-04 14:44:36,895 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 674 transitions. Word has length 7 [2025-03-04 14:44:36,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:36,895 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 674 transitions. [2025-03-04 14:44:36,895 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 14:44:36,895 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 674 transitions. [2025-03-04 14:44:36,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-04 14:44:36,895 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:36,895 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2025-03-04 14:44:36,905 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 14:44:37,096 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 14:44:37,096 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:37,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:37,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1365634497, now seen corresponding path program 1 times [2025-03-04 14:44:37,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:37,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417271679] [2025-03-04 14:44:37,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:37,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:37,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 14:44:37,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 14:44:37,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:37,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:37,482 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 14:44:37,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:37,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417271679] [2025-03-04 14:44:37,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417271679] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:37,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:44:37,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 14:44:37,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254132428] [2025-03-04 14:44:37,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:37,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:44:37,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:37,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:44:37,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:44:37,484 INFO L87 Difference]: Start difference. First operand 477 states and 674 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 14:44:37,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:37,601 INFO L93 Difference]: Finished difference Result 477 states and 674 transitions. [2025-03-04 14:44:37,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:44:37,601 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 14:44:37,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:37,603 INFO L225 Difference]: With dead ends: 477 [2025-03-04 14:44:37,603 INFO L226 Difference]: Without dead ends: 476 [2025-03-04 14:44:37,603 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 14:44:37,604 INFO L435 NwaCegarLoop]: 642 mSDtfsCounter, 0 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:37,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1282 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 14:44:37,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2025-03-04 14:44:37,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 474. [2025-03-04 14:44:37,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 407 states have (on average 1.5724815724815724) internal successors, (640), 454 states have internal predecessors, (640), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 14:44:37,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 671 transitions. [2025-03-04 14:44:37,617 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 671 transitions. Word has length 8 [2025-03-04 14:44:37,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:37,617 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 671 transitions. [2025-03-04 14:44:37,617 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 14:44:37,617 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 671 transitions. [2025-03-04 14:44:37,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-04 14:44:37,617 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:37,617 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:37,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 14:44:37,618 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:37,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:37,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1136723034, now seen corresponding path program 1 times [2025-03-04 14:44:37,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:37,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040701363] [2025-03-04 14:44:37,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:37,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:37,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 14:44:37,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 14:44:37,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:37,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:38,152 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 14:44:38,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:38,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040701363] [2025-03-04 14:44:38,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040701363] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:44:38,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017917133] [2025-03-04 14:44:38,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:38,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:44:38,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:44:38,155 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 14:44:38,156 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 14:44:38,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 14:44:38,736 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 14:44:38,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:38,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:38,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 1552 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 14:44:38,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:44:38,759 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 14:44:38,759 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 14:44:38,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017917133] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:38,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 14:44:38,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-04 14:44:38,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910008352] [2025-03-04 14:44:38,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:38,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:44:38,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:38,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:44:38,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 14:44:38,761 INFO L87 Difference]: Start difference. First operand 474 states and 671 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 14:44:38,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:38,867 INFO L93 Difference]: Finished difference Result 474 states and 671 transitions. [2025-03-04 14:44:38,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:44:38,868 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 14:44:38,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:38,870 INFO L225 Difference]: With dead ends: 474 [2025-03-04 14:44:38,870 INFO L226 Difference]: Without dead ends: 472 [2025-03-04 14:44:38,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 14:44:38,870 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 592 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:38,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 695 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 14:44:38,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2025-03-04 14:44:38,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2025-03-04 14:44:38,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 407 states have (on average 1.5675675675675675) internal successors, (638), 452 states have internal predecessors, (638), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 14:44:38,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 669 transitions. [2025-03-04 14:44:38,881 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 669 transitions. Word has length 12 [2025-03-04 14:44:38,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:38,881 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 669 transitions. [2025-03-04 14:44:38,882 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 14:44:38,882 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 669 transitions. [2025-03-04 14:44:38,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-04 14:44:38,882 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:38,882 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:38,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 14:44:39,082 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 14:44:39,083 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:39,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:39,083 INFO L85 PathProgramCache]: Analyzing trace with hash 878676595, now seen corresponding path program 1 times [2025-03-04 14:44:39,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:39,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073960816] [2025-03-04 14:44:39,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:39,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:39,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 14:44:39,349 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 14:44:39,349 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:39,349 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:39,536 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 14:44:39,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:39,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073960816] [2025-03-04 14:44:39,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073960816] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:44:39,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799852577] [2025-03-04 14:44:39,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:39,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:44:39,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:44:39,538 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 14:44:39,540 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 14:44:39,979 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 14:44:40,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 14:44:40,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:40,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:40,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 1553 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 14:44:40,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:44:40,177 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 14:44:40,178 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 14:44:40,215 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 14:44:40,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799852577] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 14:44:40,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 14:44:40,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-03-04 14:44:40,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438805231] [2025-03-04 14:44:40,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 14:44:40,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 14:44:40,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:40,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 14:44:40,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 14:44:40,217 INFO L87 Difference]: Start difference. First operand 472 states and 669 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 14:44:40,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:40,364 INFO L93 Difference]: Finished difference Result 947 states and 1343 transitions. [2025-03-04 14:44:40,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 14:44:40,365 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 14:44:40,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:40,367 INFO L225 Difference]: With dead ends: 947 [2025-03-04 14:44:40,367 INFO L226 Difference]: Without dead ends: 481 [2025-03-04 14:44:40,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 14:44:40,369 INFO L435 NwaCegarLoop]: 640 mSDtfsCounter, 4 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:40,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1278 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 14:44:40,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2025-03-04 14:44:40,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2025-03-04 14:44:40,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 416 states have (on average 1.5552884615384615) internal successors, (647), 461 states have internal predecessors, (647), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 14:44:40,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 678 transitions. [2025-03-04 14:44:40,382 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 678 transitions. Word has length 13 [2025-03-04 14:44:40,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:40,382 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 678 transitions. [2025-03-04 14:44:40,383 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 14:44:40,383 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 678 transitions. [2025-03-04 14:44:40,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-04 14:44:40,383 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:40,383 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:40,393 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 14:44:40,583 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 14:44:40,584 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:40,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:40,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1078152160, now seen corresponding path program 2 times [2025-03-04 14:44:40,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:40,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721908816] [2025-03-04 14:44:40,584 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 14:44:40,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:40,889 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-03-04 14:44:40,927 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 10 of 22 statements. [2025-03-04 14:44:40,927 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 14:44:40,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:41,209 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 14:44:41,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:41,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721908816] [2025-03-04 14:44:41,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721908816] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:41,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:44:41,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 14:44:41,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256889410] [2025-03-04 14:44:41,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:41,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 14:44:41,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:41,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 14:44:41,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 14:44:41,211 INFO L87 Difference]: Start difference. First operand 481 states and 678 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 14:44:41,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:41,364 INFO L93 Difference]: Finished difference Result 481 states and 678 transitions. [2025-03-04 14:44:41,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 14:44:41,364 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 14:44:41,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:41,366 INFO L225 Difference]: With dead ends: 481 [2025-03-04 14:44:41,367 INFO L226 Difference]: Without dead ends: 479 [2025-03-04 14:44:41,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 14:44:41,368 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 591 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:41,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 1948 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 14:44:41,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2025-03-04 14:44:41,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2025-03-04 14:44:41,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 416 states have (on average 1.5504807692307692) internal successors, (645), 459 states have internal predecessors, (645), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 14:44:41,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 676 transitions. [2025-03-04 14:44:41,393 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 676 transitions. Word has length 22 [2025-03-04 14:44:41,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:41,393 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 676 transitions. [2025-03-04 14:44:41,393 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 14:44:41,393 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 676 transitions. [2025-03-04 14:44:41,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-04 14:44:41,394 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:41,394 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 14:44:41,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 14:44:41,394 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:41,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:41,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1212496776, now seen corresponding path program 1 times [2025-03-04 14:44:41,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:41,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134493033] [2025-03-04 14:44:41,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:41,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:41,638 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 14:44:41,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 14:44:41,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:41,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:41,856 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 14:44:41,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:41,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134493033] [2025-03-04 14:44:41,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134493033] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:41,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:44:41,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 14:44:41,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329625265] [2025-03-04 14:44:41,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:41,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:44:41,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:41,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:44:41,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:44:41,857 INFO L87 Difference]: Start difference. First operand 479 states and 676 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 14:44:41,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:41,985 INFO L93 Difference]: Finished difference Result 941 states and 1336 transitions. [2025-03-04 14:44:41,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:44:41,986 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 14:44:41,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:41,988 INFO L225 Difference]: With dead ends: 941 [2025-03-04 14:44:41,988 INFO L226 Difference]: Without dead ends: 482 [2025-03-04 14:44:41,989 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 14:44:41,990 INFO L435 NwaCegarLoop]: 638 mSDtfsCounter, 2 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:41,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1271 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 14:44:41,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2025-03-04 14:44:42,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2025-03-04 14:44:42,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 419 states have (on average 1.5465393794749402) internal successors, (648), 462 states have internal predecessors, (648), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 14:44:42,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 679 transitions. [2025-03-04 14:44:42,005 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 679 transitions. Word has length 27 [2025-03-04 14:44:42,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:42,006 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 679 transitions. [2025-03-04 14:44:42,006 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 14:44:42,006 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 679 transitions. [2025-03-04 14:44:42,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-04 14:44:42,007 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:42,007 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 14:44:42,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 14:44:42,007 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:42,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:42,008 INFO L85 PathProgramCache]: Analyzing trace with hash 822153689, now seen corresponding path program 1 times [2025-03-04 14:44:42,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:42,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539977226] [2025-03-04 14:44:42,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:42,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:42,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 14:44:42,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 14:44:42,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:42,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:42,446 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 14:44:42,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:42,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539977226] [2025-03-04 14:44:42,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539977226] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:42,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:44:42,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 14:44:42,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631836255] [2025-03-04 14:44:42,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:42,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:44:42,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:42,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:44:42,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:44:42,448 INFO L87 Difference]: Start difference. First operand 482 states and 679 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 14:44:42,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:42,587 INFO L93 Difference]: Finished difference Result 495 states and 694 transitions. [2025-03-04 14:44:42,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:44:42,587 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 14:44:42,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:42,589 INFO L225 Difference]: With dead ends: 495 [2025-03-04 14:44:42,590 INFO L226 Difference]: Without dead ends: 493 [2025-03-04 14:44:42,590 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 14:44:42,590 INFO L435 NwaCegarLoop]: 636 mSDtfsCounter, 3 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:42,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1268 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 14:44:42,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2025-03-04 14:44:42,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 491. [2025-03-04 14:44:42,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 428 states have (on average 1.544392523364486) internal successors, (661), 471 states have internal predecessors, (661), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 14:44:42,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 692 transitions. [2025-03-04 14:44:42,601 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 692 transitions. Word has length 30 [2025-03-04 14:44:42,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:42,601 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 692 transitions. [2025-03-04 14:44:42,601 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 14:44:42,601 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 692 transitions. [2025-03-04 14:44:42,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-04 14:44:42,601 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:42,601 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 14:44:42,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 14:44:42,601 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:42,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:42,602 INFO L85 PathProgramCache]: Analyzing trace with hash 822153849, now seen corresponding path program 1 times [2025-03-04 14:44:42,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:42,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869595720] [2025-03-04 14:44:42,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:42,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:42,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 14:44:42,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 14:44:42,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:42,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:43,042 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-04 14:44:43,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:43,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869595720] [2025-03-04 14:44:43,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869595720] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:44:43,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278827019] [2025-03-04 14:44:43,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:43,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:44:43,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:44:43,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 14:44:43,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 14:44:43,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 14:44:43,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 14:44:43,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:43,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:43,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 1738 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 14:44:43,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:44:43,932 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 14:44:43,932 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 14:44:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 14:44:44,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278827019] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 14:44:44,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 14:44:44,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2025-03-04 14:44:44,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037697623] [2025-03-04 14:44:44,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 14:44:44,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 14:44:44,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:44,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 14:44:44,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2025-03-04 14:44:44,060 INFO L87 Difference]: Start difference. First operand 491 states and 692 transitions. Second operand has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 14:44:44,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:44,421 INFO L93 Difference]: Finished difference Result 984 states and 1392 transitions. [2025-03-04 14:44:44,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 14:44:44,422 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2025-03-04 14:44:44,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:44,424 INFO L225 Difference]: With dead ends: 984 [2025-03-04 14:44:44,424 INFO L226 Difference]: Without dead ends: 508 [2025-03-04 14:44:44,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2025-03-04 14:44:44,425 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 5 mSDsluCounter, 3780 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4412 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:44,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4412 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 14:44:44,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2025-03-04 14:44:44,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2025-03-04 14:44:44,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 446 states have (on average 1.5179372197309418) internal successors, (677), 488 states have internal predecessors, (677), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 14:44:44,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 708 transitions. [2025-03-04 14:44:44,440 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 708 transitions. Word has length 30 [2025-03-04 14:44:44,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:44,440 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 708 transitions. [2025-03-04 14:44:44,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 14:44:44,440 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 708 transitions. [2025-03-04 14:44:44,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-04 14:44:44,441 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:44,441 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:44,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-04 14:44:44,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:44:44,642 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:44,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:44,642 INFO L85 PathProgramCache]: Analyzing trace with hash -466548935, now seen corresponding path program 1 times [2025-03-04 14:44:44,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:44,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257307619] [2025-03-04 14:44:44,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:44,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:44,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 14:44:44,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 14:44:44,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:44,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:45,079 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-04 14:44:45,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:45,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257307619] [2025-03-04 14:44:45,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257307619] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:45,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:44:45,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 14:44:45,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218188405] [2025-03-04 14:44:45,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:45,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:44:45,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:45,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:44:45,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:44:45,081 INFO L87 Difference]: Start difference. First operand 508 states and 708 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 14:44:45,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:45,231 INFO L93 Difference]: Finished difference Result 806 states and 1146 transitions. [2025-03-04 14:44:45,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:44:45,231 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 48 [2025-03-04 14:44:45,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:45,236 INFO L225 Difference]: With dead ends: 806 [2025-03-04 14:44:45,236 INFO L226 Difference]: Without dead ends: 804 [2025-03-04 14:44:45,236 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 14:44:45,237 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 412 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:45,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1256 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 14:44:45,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2025-03-04 14:44:45,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 512. [2025-03-04 14:44:45,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 450 states have (on average 1.5155555555555555) internal successors, (682), 492 states have internal predecessors, (682), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 14:44:45,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 713 transitions. [2025-03-04 14:44:45,255 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 713 transitions. Word has length 48 [2025-03-04 14:44:45,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:45,256 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 713 transitions. [2025-03-04 14:44:45,256 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 14:44:45,257 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 713 transitions. [2025-03-04 14:44:45,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-03-04 14:44:45,257 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:45,257 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:45,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 14:44:45,258 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:45,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:45,259 INFO L85 PathProgramCache]: Analyzing trace with hash -50500918, now seen corresponding path program 1 times [2025-03-04 14:44:45,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:45,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522680331] [2025-03-04 14:44:45,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:45,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:45,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-04 14:44:45,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-04 14:44:45,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:45,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:45,644 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-03-04 14:44:45,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:45,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522680331] [2025-03-04 14:44:45,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522680331] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:45,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:44:45,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 14:44:45,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736182038] [2025-03-04 14:44:45,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:45,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:44:45,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:45,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:44:45,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:44:45,646 INFO L87 Difference]: Start difference. First operand 512 states and 713 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 14:44:45,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:45,740 INFO L93 Difference]: Finished difference Result 512 states and 713 transitions. [2025-03-04 14:44:45,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:44:45,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2025-03-04 14:44:45,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:45,743 INFO L225 Difference]: With dead ends: 512 [2025-03-04 14:44:45,744 INFO L226 Difference]: Without dead ends: 511 [2025-03-04 14:44:45,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:44:45,744 INFO L435 NwaCegarLoop]: 636 mSDtfsCounter, 0 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:45,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1269 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 14:44:45,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2025-03-04 14:44:45,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 507. [2025-03-04 14:44:45,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 446 states have (on average 1.515695067264574) internal successors, (676), 487 states have internal predecessors, (676), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 14:44:45,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 707 transitions. [2025-03-04 14:44:45,756 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 707 transitions. Word has length 49 [2025-03-04 14:44:45,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:45,756 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 707 transitions. [2025-03-04 14:44:45,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 14:44:45,757 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 707 transitions. [2025-03-04 14:44:45,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-04 14:44:45,760 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:45,761 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:45,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 14:44:45,761 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:45,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:45,761 INFO L85 PathProgramCache]: Analyzing trace with hash -888629635, now seen corresponding path program 1 times [2025-03-04 14:44:45,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:45,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89643777] [2025-03-04 14:44:45,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:45,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:45,997 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-04 14:44:46,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-04 14:44:46,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:46,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:46,169 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-04 14:44:46,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:46,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89643777] [2025-03-04 14:44:46,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89643777] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:44:46,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062949747] [2025-03-04 14:44:46,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:46,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:44:46,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:44:46,172 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 14:44:46,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 14:44:46,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-04 14:44:46,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-04 14:44:46,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:46,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:46,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 1883 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 14:44:46,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:44:46,924 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-04 14:44:46,924 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 14:44:46,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062949747] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:46,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 14:44:46,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-04 14:44:46,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926832765] [2025-03-04 14:44:46,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:46,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 14:44:46,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:46,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 14:44:46,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 14:44:46,925 INFO L87 Difference]: Start difference. First operand 507 states and 707 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 14:44:47,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:47,129 INFO L93 Difference]: Finished difference Result 803 states and 1143 transitions. [2025-03-04 14:44:47,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 14:44:47,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2025-03-04 14:44:47,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:47,133 INFO L225 Difference]: With dead ends: 803 [2025-03-04 14:44:47,133 INFO L226 Difference]: Without dead ends: 802 [2025-03-04 14:44:47,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 14:44:47,133 INFO L435 NwaCegarLoop]: 1037 mSDtfsCounter, 823 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:47,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 1903 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 14:44:47,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2025-03-04 14:44:47,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 506. [2025-03-04 14:44:47,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 446 states have (on average 1.5134529147982063) internal successors, (675), 486 states have internal predecessors, (675), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 14:44:47,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 706 transitions. [2025-03-04 14:44:47,145 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 706 transitions. Word has length 52 [2025-03-04 14:44:47,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:47,145 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 706 transitions. [2025-03-04 14:44:47,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 14:44:47,146 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 706 transitions. [2025-03-04 14:44:47,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-04 14:44:47,146 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:47,146 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:47,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-04 14:44:47,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-03-04 14:44:47,347 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:47,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:47,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1777714058, now seen corresponding path program 1 times [2025-03-04 14:44:47,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:47,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381774534] [2025-03-04 14:44:47,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:47,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:47,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-04 14:44:47,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 14:44:47,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:47,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:47,754 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-04 14:44:47,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:47,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381774534] [2025-03-04 14:44:47,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381774534] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:44:47,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068426179] [2025-03-04 14:44:47,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:47,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:44:47,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:44:47,757 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 14:44:47,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 14:44:48,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-04 14:44:48,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 14:44:48,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:48,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:48,478 INFO L256 TraceCheckSpWp]: Trace formula consists of 1884 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 14:44:48,480 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:44:48,503 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-04 14:44:48,503 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 14:44:48,543 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-04 14:44:48,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068426179] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 14:44:48,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 14:44:48,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-04 14:44:48,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076436541] [2025-03-04 14:44:48,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 14:44:48,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 14:44:48,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:48,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 14:44:48,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 14:44:48,544 INFO L87 Difference]: Start difference. First operand 506 states and 706 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 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 14:44:49,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:49,029 INFO L93 Difference]: Finished difference Result 1687 states and 2448 transitions. [2025-03-04 14:44:49,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 14:44:49,030 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 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 53 [2025-03-04 14:44:49,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:49,037 INFO L225 Difference]: With dead ends: 1687 [2025-03-04 14:44:49,037 INFO L226 Difference]: Without dead ends: 1686 [2025-03-04 14:44:49,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 14:44:49,038 INFO L435 NwaCegarLoop]: 630 mSDtfsCounter, 2815 mSDsluCounter, 2086 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 2716 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:49,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2843 Valid, 2716 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 14:44:49,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2025-03-04 14:44:49,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 518. [2025-03-04 14:44:49,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 458 states have (on average 1.5065502183406114) internal successors, (690), 498 states have internal predecessors, (690), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 14:44:49,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 721 transitions. [2025-03-04 14:44:49,063 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 721 transitions. Word has length 53 [2025-03-04 14:44:49,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:49,063 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 721 transitions. [2025-03-04 14:44:49,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 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 14:44:49,063 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 721 transitions. [2025-03-04 14:44:49,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-04 14:44:49,064 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:49,064 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:49,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-04 14:44:49,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:44:49,265 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:49,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:49,265 INFO L85 PathProgramCache]: Analyzing trace with hash -500268416, now seen corresponding path program 1 times [2025-03-04 14:44:49,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:49,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070910752] [2025-03-04 14:44:49,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:49,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:49,579 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-04 14:44:49,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-04 14:44:49,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:49,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:49,731 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2025-03-04 14:44:49,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:49,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070910752] [2025-03-04 14:44:49,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070910752] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:44:49,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380345561] [2025-03-04 14:44:49,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:49,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:44:49,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:44:49,734 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 14:44:49,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 14:44:50,358 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-04 14:44:50,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-04 14:44:50,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:50,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:50,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 1907 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 14:44:50,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:44:50,532 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2025-03-04 14:44:50,533 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 14:44:50,564 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2025-03-04 14:44:50,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380345561] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 14:44:50,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 14:44:50,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-03-04 14:44:50,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944006913] [2025-03-04 14:44:50,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 14:44:50,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 14:44:50,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:50,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 14:44:50,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 14:44:50,565 INFO L87 Difference]: Start difference. First operand 518 states and 721 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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 14:44:50,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:50,763 INFO L93 Difference]: Finished difference Result 1011 states and 1419 transitions. [2025-03-04 14:44:50,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 14:44:50,764 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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 55 [2025-03-04 14:44:50,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:50,766 INFO L225 Difference]: With dead ends: 1011 [2025-03-04 14:44:50,766 INFO L226 Difference]: Without dead ends: 536 [2025-03-04 14:44:50,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 14:44:50,767 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 4 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2531 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:50,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2531 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 14:44:50,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2025-03-04 14:44:50,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2025-03-04 14:44:50,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 476 states have (on average 1.4873949579831933) internal successors, (708), 516 states have internal predecessors, (708), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 14:44:50,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 739 transitions. [2025-03-04 14:44:50,781 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 739 transitions. Word has length 55 [2025-03-04 14:44:50,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:50,781 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 739 transitions. [2025-03-04 14:44:50,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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 14:44:50,781 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 739 transitions. [2025-03-04 14:44:50,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-03-04 14:44:50,782 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:50,782 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:50,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-04 14:44:50,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:44:50,983 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:50,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:50,984 INFO L85 PathProgramCache]: Analyzing trace with hash -201403202, now seen corresponding path program 1 times [2025-03-04 14:44:50,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:50,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70892248] [2025-03-04 14:44:50,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:50,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:51,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-04 14:44:51,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-04 14:44:51,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:51,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:51,359 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-04 14:44:51,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:51,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70892248] [2025-03-04 14:44:51,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70892248] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:51,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:44:51,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 14:44:51,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138306533] [2025-03-04 14:44:51,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:51,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:44:51,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:51,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:44:51,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:44:51,361 INFO L87 Difference]: Start difference. First operand 536 states and 739 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 14:44:51,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:51,593 INFO L93 Difference]: Finished difference Result 1047 states and 1473 transitions. [2025-03-04 14:44:51,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:44:51,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 62 [2025-03-04 14:44:51,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:51,596 INFO L225 Difference]: With dead ends: 1047 [2025-03-04 14:44:51,596 INFO L226 Difference]: Without dead ends: 631 [2025-03-04 14:44:51,597 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 14:44:51,597 INFO L435 NwaCegarLoop]: 628 mSDtfsCounter, 119 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:51,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1194 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 14:44:51,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2025-03-04 14:44:51,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 578. [2025-03-04 14:44:51,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 517 states have (on average 1.4777562862669245) internal successors, (764), 557 states have internal predecessors, (764), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-04 14:44:51,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 797 transitions. [2025-03-04 14:44:51,617 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 797 transitions. Word has length 62 [2025-03-04 14:44:51,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:51,617 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 797 transitions. [2025-03-04 14:44:51,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 14:44:51,617 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 797 transitions. [2025-03-04 14:44:51,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-04 14:44:51,618 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:51,618 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:51,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-04 14:44:51,618 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:51,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:51,619 INFO L85 PathProgramCache]: Analyzing trace with hash -274922340, now seen corresponding path program 1 times [2025-03-04 14:44:51,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:51,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049172474] [2025-03-04 14:44:51,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:44:51,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:51,872 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-04 14:44:51,894 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-04 14:44:51,895 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:44:51,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:51,998 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-04 14:44:51,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:51,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049172474] [2025-03-04 14:44:51,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049172474] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:51,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:44:51,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 14:44:51,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639100996] [2025-03-04 14:44:51,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:51,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:44:52,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:52,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:44:52,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:44:52,000 INFO L87 Difference]: Start difference. First operand 578 states and 797 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 14:44:52,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:52,117 INFO L93 Difference]: Finished difference Result 580 states and 797 transitions. [2025-03-04 14:44:52,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:44:52,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2025-03-04 14:44:52,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:52,120 INFO L225 Difference]: With dead ends: 580 [2025-03-04 14:44:52,120 INFO L226 Difference]: Without dead ends: 578 [2025-03-04 14:44:52,120 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 14:44:52,121 INFO L435 NwaCegarLoop]: 636 mSDtfsCounter, 1 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:52,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1267 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 14:44:52,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2025-03-04 14:44:52,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2025-03-04 14:44:52,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 517 states have (on average 1.4738878143133463) internal successors, (762), 557 states have internal predecessors, (762), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-04 14:44:52,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 795 transitions. [2025-03-04 14:44:52,134 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 795 transitions. Word has length 64 [2025-03-04 14:44:52,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:52,134 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 795 transitions. [2025-03-04 14:44:52,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 14:44:52,134 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 795 transitions. [2025-03-04 14:44:52,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-04 14:44:52,135 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:52,135 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:52,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-04 14:44:52,135 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:52,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:52,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1402252246, now seen corresponding path program 2 times [2025-03-04 14:44:52,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:52,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863397298] [2025-03-04 14:44:52,136 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 14:44:52,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:52,377 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 65 statements into 2 equivalence classes. [2025-03-04 14:44:52,395 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 19 of 65 statements. [2025-03-04 14:44:52,396 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 14:44:52,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:52,608 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2025-03-04 14:44:52,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:52,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863397298] [2025-03-04 14:44:52,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863397298] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:44:52,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:44:52,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 14:44:52,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621342393] [2025-03-04 14:44:52,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:44:52,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:44:52,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:44:52,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:44:52,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:44:52,611 INFO L87 Difference]: Start difference. First operand 578 states and 795 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 14:44:52,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:44:52,704 INFO L93 Difference]: Finished difference Result 1069 states and 1485 transitions. [2025-03-04 14:44:52,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:44:52,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2025-03-04 14:44:52,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:44:52,706 INFO L225 Difference]: With dead ends: 1069 [2025-03-04 14:44:52,707 INFO L226 Difference]: Without dead ends: 582 [2025-03-04 14:44:52,708 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 14:44:52,708 INFO L435 NwaCegarLoop]: 636 mSDtfsCounter, 27 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 14:44:52,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 1233 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 14:44:52,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2025-03-04 14:44:52,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2025-03-04 14:44:52,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 520 states have (on average 1.4692307692307693) internal successors, (764), 560 states have internal predecessors, (764), 19 states have call successors, (19), 8 states have call predecessors, (19), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-04 14:44:52,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 797 transitions. [2025-03-04 14:44:52,723 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 797 transitions. Word has length 65 [2025-03-04 14:44:52,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:44:52,723 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 797 transitions. [2025-03-04 14:44:52,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 14:44:52,724 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 797 transitions. [2025-03-04 14:44:52,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-03-04 14:44:52,725 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:44:52,725 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:44:52,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-04 14:44:52,726 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 63 more)] === [2025-03-04 14:44:52,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:44:52,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1097647408, now seen corresponding path program 2 times [2025-03-04 14:44:52,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:44:52,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570393796] [2025-03-04 14:44:52,727 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 14:44:52,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:44:52,972 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 73 statements into 2 equivalence classes. [2025-03-04 14:44:53,053 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 73 of 73 statements. [2025-03-04 14:44:53,054 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 14:44:53,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:44:53,294 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2025-03-04 14:44:53,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:44:53,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570393796] [2025-03-04 14:44:53,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570393796] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:44:53,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556295161] [2025-03-04 14:44:53,294 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 14:44:53,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:44:53,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:44:53,296 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 14:44:53,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 14:44:54,035 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 73 statements into 2 equivalence classes.