./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed 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/uthash-2.0.2/uthash_SFH_test6-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:18:18,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:18:18,729 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:18:18,732 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:18:18,732 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:18:18,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:18:18,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:18:18,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:18:18,754 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:18:18,754 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:18:18,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:18:18,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:18:18,754 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:18:18,754 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:18:18,754 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:18:18,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:18:18,754 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:18:18,755 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:18:18,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:18:18,755 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:18:18,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:18:18,755 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:18:18,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:18:18,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:18:18,755 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:18:18,755 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:18:18,755 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:18:18,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:18:18,755 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:18:18,756 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:18:18,756 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:18:18,756 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:18:18,756 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:18:18,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:18:18,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:18:18,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:18:18,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:18:18,757 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:18:18,757 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:18:18,757 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:18:18,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:18:18,757 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:18:18,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:18:18,757 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:18:18,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:18:18,757 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf [2025-03-09 06:18:18,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:18:18,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:18:18,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:18:18,997 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:18:18,998 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:18:18,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2025-03-09 06:18:20,101 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3978c29d2/0232fc0dc63849d3a4973dfa6d1bba72/FLAG9c4dd798d [2025-03-09 06:18:20,433 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:18:20,434 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2025-03-09 06:18:20,454 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3978c29d2/0232fc0dc63849d3a4973dfa6d1bba72/FLAG9c4dd798d [2025-03-09 06:18:20,674 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3978c29d2/0232fc0dc63849d3a4973dfa6d1bba72 [2025-03-09 06:18:20,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:18:20,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:18:20,677 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:18:20,678 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:18:20,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:18:20,681 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:18:20" (1/1) ... [2025-03-09 06:18:20,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bdb535f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:18:20, skipping insertion in model container [2025-03-09 06:18:20,683 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:18:20" (1/1) ... [2025-03-09 06:18:20,726 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:18:21,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:18:21,188 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:18:21,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:18:21,309 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:18:21,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:18:21 WrapperNode [2025-03-09 06:18:21,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:18:21,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:18:21,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:18:21,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:18:21,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:18:21" (1/1) ... [2025-03-09 06:18:21,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:18:21" (1/1) ... [2025-03-09 06:18:21,407 INFO L138 Inliner]: procedures = 282, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1605 [2025-03-09 06:18:21,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:18:21,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:18:21,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:18:21,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:18:21,416 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:18:21" (1/1) ... [2025-03-09 06:18:21,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:18:21" (1/1) ... [2025-03-09 06:18:21,428 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:18:21" (1/1) ... [2025-03-09 06:18:21,510 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 12, 270, 34]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 62 writes are split as follows [0, 1, 57, 4]. [2025-03-09 06:18:21,511 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:18:21" (1/1) ... [2025-03-09 06:18:21,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:18:21" (1/1) ... [2025-03-09 06:18:21,546 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:18:21" (1/1) ... [2025-03-09 06:18:21,549 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:18:21" (1/1) ... [2025-03-09 06:18:21,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:18:21" (1/1) ... [2025-03-09 06:18:21,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:18:21" (1/1) ... [2025-03-09 06:18:21,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:18:21,576 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:18:21,576 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:18:21,576 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:18:21,577 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:18:21" (1/1) ... [2025-03-09 06:18:21,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:18:21,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:18:21,602 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) [2025-03-09 06:18:21,609 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 [2025-03-09 06:18:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-09 06:18:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-09 06:18:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-03-09 06:18:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-09 06:18:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-03-09 06:18:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-09 06:18:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-09 06:18:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-09 06:18:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-09 06:18:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-03-09 06:18:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-03-09 06:18:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:18:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 06:18:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-09 06:18:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-09 06:18:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:18:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:18:21,816 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:18:21,817 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:18:21,865 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L955: havoc #t~malloc32.base, #t~malloc32.offset; [2025-03-09 06:18:22,947 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc alt_memcmp_#t~nondet36#1; [2025-03-09 06:18:22,947 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc real_malloc_#t~malloc39#1.base, real_malloc_#t~malloc39#1.offset; [2025-03-09 06:18:22,947 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L987: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-03-09 06:18:23,035 INFO L? ?]: Removed 375 outVars from TransFormulas that were not future-live. [2025-03-09 06:18:23,035 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:18:23,081 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:18:23,083 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-09 06:18:23,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:18:23 BoogieIcfgContainer [2025-03-09 06:18:23,083 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:18:23,085 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:18:23,085 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:18:23,088 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:18:23,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:18:20" (1/3) ... [2025-03-09 06:18:23,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66511d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:18:23, skipping insertion in model container [2025-03-09 06:18:23,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:18:21" (2/3) ... [2025-03-09 06:18:23,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66511d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:18:23, skipping insertion in model container [2025-03-09 06:18:23,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:18:23" (3/3) ... [2025-03-09 06:18:23,090 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-2.i [2025-03-09 06:18:23,100 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:18:23,101 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test6-2.i that has 6 procedures, 494 locations, 1 initial locations, 39 loop locations, and 14 error locations. [2025-03-09 06:18:23,152 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:18:23,160 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;@45ae6708, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:18:23,160 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2025-03-09 06:18:23,164 INFO L276 IsEmpty]: Start isEmpty. Operand has 494 states, 455 states have (on average 1.6021978021978023) internal successors, (729), 472 states have internal predecessors, (729), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-09 06:18:23,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-09 06:18:23,168 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:23,168 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:18:23,168 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:23,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:23,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1369628540, now seen corresponding path program 1 times [2025-03-09 06:18:23,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:23,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095440160] [2025-03-09 06:18:23,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:23,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:23,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:18:23,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:18:23,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:23,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:23,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:18:23,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:23,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095440160] [2025-03-09 06:18:23,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095440160] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:18:23,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:18:23,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:18:23,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616449877] [2025-03-09 06:18:23,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:18:23,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 06:18:23,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:23,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 06:18:23,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 06:18:23,347 INFO L87 Difference]: Start difference. First operand has 494 states, 455 states have (on average 1.6021978021978023) internal successors, (729), 472 states have internal predecessors, (729), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2025-03-09 06:18:23,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:23,478 INFO L93 Difference]: Finished difference Result 981 states and 1543 transitions. [2025-03-09 06:18:23,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 06:18:23,482 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 [2025-03-09 06:18:23,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:23,492 INFO L225 Difference]: With dead ends: 981 [2025-03-09 06:18:23,492 INFO L226 Difference]: Without dead ends: 481 [2025-03-09 06:18:23,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 06:18:23,501 INFO L435 NwaCegarLoop]: 645 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:23,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 645 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:18:23,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2025-03-09 06:18:23,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2025-03-09 06:18:23,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 448 states have (on average 1.4441964285714286) internal successors, (647), 462 states have internal predecessors, (647), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 06:18:23,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 677 transitions. [2025-03-09 06:18:23,588 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 677 transitions. Word has length 8 [2025-03-09 06:18:23,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:23,588 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 677 transitions. [2025-03-09 06:18:23,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2025-03-09 06:18:23,588 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 677 transitions. [2025-03-09 06:18:23,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-09 06:18:23,589 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:23,589 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:18:23,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:18:23,589 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:23,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:23,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1369629501, now seen corresponding path program 1 times [2025-03-09 06:18:23,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:23,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829920454] [2025-03-09 06:18:23,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:23,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:23,603 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:18:23,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:18:23,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:23,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 06:18:23,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261808350] [2025-03-09 06:18:23,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:23,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:18:23,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:18:23,632 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) [2025-03-09 06:18:23,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 06:18:23,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:18:23,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:18:23,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:23,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:23,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:18:23,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:18:23,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-09 06:18:23,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:18:23,859 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:18:23,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:23,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829920454] [2025-03-09 06:18:23,860 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 06:18:23,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261808350] [2025-03-09 06:18:23,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261808350] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:18:23,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:18:23,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:18:23,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267614300] [2025-03-09 06:18:23,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:18:23,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:18:23,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:23,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:18:23,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:18:23,863 INFO L87 Difference]: Start difference. First operand 481 states and 677 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2025-03-09 06:18:24,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:24,119 INFO L93 Difference]: Finished difference Result 928 states and 1321 transitions. [2025-03-09 06:18:24,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:18:24,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 [2025-03-09 06:18:24,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:24,124 INFO L225 Difference]: With dead ends: 928 [2025-03-09 06:18:24,125 INFO L226 Difference]: Without dead ends: 927 [2025-03-09 06:18:24,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:18:24,126 INFO L435 NwaCegarLoop]: 642 mSDtfsCounter, 609 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:24,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1880 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:18:24,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2025-03-09 06:18:24,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 487. [2025-03-09 06:18:24,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 454 states have (on average 1.4405286343612336) internal successors, (654), 468 states have internal predecessors, (654), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 06:18:24,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 684 transitions. [2025-03-09 06:18:24,156 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 684 transitions. Word has length 8 [2025-03-09 06:18:24,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:24,157 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 684 transitions. [2025-03-09 06:18:24,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2025-03-09 06:18:24,157 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 684 transitions. [2025-03-09 06:18:24,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-09 06:18:24,158 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:24,158 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:18:24,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 06:18:24,358 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 [2025-03-09 06:18:24,359 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:24,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:24,359 INFO L85 PathProgramCache]: Analyzing trace with hash -491157680, now seen corresponding path program 1 times [2025-03-09 06:18:24,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:24,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526751191] [2025-03-09 06:18:24,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:24,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:24,373 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:18:24,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:18:24,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:24,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 06:18:24,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [677266115] [2025-03-09 06:18:24,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:24,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:18:24,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:18:24,400 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) [2025-03-09 06:18:24,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 06:18:24,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:18:24,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:18:24,547 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:24,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:24,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:18:24,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:18:24,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-09 06:18:24,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:18:24,568 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:18:24,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:24,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526751191] [2025-03-09 06:18:24,568 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 06:18:24,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677266115] [2025-03-09 06:18:24,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677266115] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:18:24,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:18:24,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:18:24,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873130457] [2025-03-09 06:18:24,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:18:24,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:18:24,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:24,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:18:24,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:18:24,569 INFO L87 Difference]: Start difference. First operand 487 states and 684 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:18:24,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:24,817 INFO L93 Difference]: Finished difference Result 927 states and 1320 transitions. [2025-03-09 06:18:24,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:18:24,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-03-09 06:18:24,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:24,826 INFO L225 Difference]: With dead ends: 927 [2025-03-09 06:18:24,826 INFO L226 Difference]: Without dead ends: 926 [2025-03-09 06:18:24,826 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 [2025-03-09 06:18:24,827 INFO L435 NwaCegarLoop]: 614 mSDtfsCounter, 607 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:24,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 1823 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:18:24,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2025-03-09 06:18:24,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 488. [2025-03-09 06:18:24,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 455 states have (on average 1.4395604395604396) internal successors, (655), 469 states have internal predecessors, (655), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 06:18:24,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 685 transitions. [2025-03-09 06:18:24,856 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 685 transitions. Word has length 9 [2025-03-09 06:18:24,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:24,856 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 685 transitions. [2025-03-09 06:18:24,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:18:24,856 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 685 transitions. [2025-03-09 06:18:24,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-09 06:18:24,857 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:24,857 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2025-03-09 06:18:24,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-09 06:18:25,058 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,SelfDestructingSolverStorable2 [2025-03-09 06:18:25,058 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting alt_freeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:25,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:25,059 INFO L85 PathProgramCache]: Analyzing trace with hash -668226412, now seen corresponding path program 1 times [2025-03-09 06:18:25,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:25,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699243714] [2025-03-09 06:18:25,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:25,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:25,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-09 06:18:25,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-09 06:18:25,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:25,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:25,276 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 06:18:25,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:25,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699243714] [2025-03-09 06:18:25,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699243714] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:18:25,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:18:25,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:18:25,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134236796] [2025-03-09 06:18:25,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:18:25,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:18:25,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:25,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:18:25,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:18:25,277 INFO L87 Difference]: Start difference. First operand 488 states and 685 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 06:18:25,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:25,471 INFO L93 Difference]: Finished difference Result 1177 states and 1673 transitions. [2025-03-09 06:18:25,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:18:25,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2025-03-09 06:18:25,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:25,475 INFO L225 Difference]: With dead ends: 1177 [2025-03-09 06:18:25,475 INFO L226 Difference]: Without dead ends: 925 [2025-03-09 06:18:25,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:18:25,477 INFO L435 NwaCegarLoop]: 650 mSDtfsCounter, 610 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:25,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 1897 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:18:25,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2025-03-09 06:18:25,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 488. [2025-03-09 06:18:25,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 455 states have (on average 1.4373626373626374) internal successors, (654), 469 states have internal predecessors, (654), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 06:18:25,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 684 transitions. [2025-03-09 06:18:25,493 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 684 transitions. Word has length 34 [2025-03-09 06:18:25,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:25,493 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 684 transitions. [2025-03-09 06:18:25,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 06:18:25,493 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 684 transitions. [2025-03-09 06:18:25,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-03-09 06:18:25,496 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:25,497 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2025-03-09 06:18:25,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:18:25,497 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:25,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:25,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1151657349, now seen corresponding path program 1 times [2025-03-09 06:18:25,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:25,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840047796] [2025-03-09 06:18:25,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:25,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:25,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-09 06:18:25,542 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-09 06:18:25,542 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:25,542 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:25,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:18:25,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:25,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840047796] [2025-03-09 06:18:25,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840047796] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:18:25,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:18:25,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:18:25,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040368403] [2025-03-09 06:18:25,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:18:25,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:18:25,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:25,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:18:25,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:18:25,699 INFO L87 Difference]: Start difference. First operand 488 states and 684 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:18:25,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:25,826 INFO L93 Difference]: Finished difference Result 925 states and 1293 transitions. [2025-03-09 06:18:25,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:18:25,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2025-03-09 06:18:25,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:25,829 INFO L225 Difference]: With dead ends: 925 [2025-03-09 06:18:25,829 INFO L226 Difference]: Without dead ends: 446 [2025-03-09 06:18:25,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:18:25,831 INFO L435 NwaCegarLoop]: 542 mSDtfsCounter, 30 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:25,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1607 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:18:25,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2025-03-09 06:18:25,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2025-03-09 06:18:25,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 413 states have (on average 1.397094430992736) internal successors, (577), 427 states have internal predecessors, (577), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 06:18:25,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 607 transitions. [2025-03-09 06:18:25,844 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 607 transitions. Word has length 62 [2025-03-09 06:18:25,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:25,845 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 607 transitions. [2025-03-09 06:18:25,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:18:25,845 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 607 transitions. [2025-03-09 06:18:25,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-03-09 06:18:25,846 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:25,846 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2025-03-09 06:18:25,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:18:25,846 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:25,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:25,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1403853026, now seen corresponding path program 1 times [2025-03-09 06:18:25,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:25,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112998203] [2025-03-09 06:18:25,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:25,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:25,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-09 06:18:25,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-09 06:18:25,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:25,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:26,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:18:26,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:26,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112998203] [2025-03-09 06:18:26,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112998203] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:18:26,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:18:26,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:18:26,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830969564] [2025-03-09 06:18:26,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:18:26,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:18:26,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:26,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:18:26,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:18:26,052 INFO L87 Difference]: Start difference. First operand 446 states and 607 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:18:26,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:26,183 INFO L93 Difference]: Finished difference Result 814 states and 1117 transitions. [2025-03-09 06:18:26,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:18:26,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2025-03-09 06:18:26,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:26,189 INFO L225 Difference]: With dead ends: 814 [2025-03-09 06:18:26,189 INFO L226 Difference]: Without dead ends: 810 [2025-03-09 06:18:26,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:18:26,190 INFO L435 NwaCegarLoop]: 557 mSDtfsCounter, 437 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:26,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1660 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:18:26,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2025-03-09 06:18:26,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 802. [2025-03-09 06:18:26,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 761 states have (on average 1.40473061760841) internal successors, (1069), 777 states have internal predecessors, (1069), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (22), 18 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-09 06:18:26,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1113 transitions. [2025-03-09 06:18:26,209 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1113 transitions. Word has length 62 [2025-03-09 06:18:26,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:26,209 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1113 transitions. [2025-03-09 06:18:26,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:18:26,210 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1113 transitions. [2025-03-09 06:18:26,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-09 06:18:26,213 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:26,213 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:18:26,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:18:26,214 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:26,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:26,215 INFO L85 PathProgramCache]: Analyzing trace with hash -516495134, now seen corresponding path program 1 times [2025-03-09 06:18:26,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:26,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504338567] [2025-03-09 06:18:26,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:26,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:26,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-09 06:18:26,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-09 06:18:26,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:26,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:26,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:18:26,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:26,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504338567] [2025-03-09 06:18:26,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504338567] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:18:26,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:18:26,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:18:26,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840389024] [2025-03-09 06:18:26,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:18:26,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:18:26,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:26,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:18:26,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:18:26,386 INFO L87 Difference]: Start difference. First operand 802 states and 1113 transitions. Second operand has 3 states, 2 states have (on average 34.5) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 06:18:26,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:26,474 INFO L93 Difference]: Finished difference Result 1073 states and 1486 transitions. [2025-03-09 06:18:26,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:18:26,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 34.5) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 72 [2025-03-09 06:18:26,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:26,478 INFO L225 Difference]: With dead ends: 1073 [2025-03-09 06:18:26,479 INFO L226 Difference]: Without dead ends: 1071 [2025-03-09 06:18:26,479 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 [2025-03-09 06:18:26,480 INFO L435 NwaCegarLoop]: 557 mSDtfsCounter, 465 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:26,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 1110 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:18:26,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2025-03-09 06:18:26,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1061. [2025-03-09 06:18:26,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 1007 states have (on average 1.41012909632572) internal successors, (1420), 1024 states have internal predecessors, (1420), 32 states have call successors, (32), 10 states have call predecessors, (32), 8 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2025-03-09 06:18:26,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1484 transitions. [2025-03-09 06:18:26,520 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1484 transitions. Word has length 72 [2025-03-09 06:18:26,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:26,520 INFO L471 AbstractCegarLoop]: Abstraction has 1061 states and 1484 transitions. [2025-03-09 06:18:26,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.5) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 06:18:26,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1484 transitions. [2025-03-09 06:18:26,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-09 06:18:26,521 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:26,521 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:18:26,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 06:18:26,522 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:26,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:26,522 INFO L85 PathProgramCache]: Analyzing trace with hash -368563717, now seen corresponding path program 1 times [2025-03-09 06:18:26,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:26,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59221572] [2025-03-09 06:18:26,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:26,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:26,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-09 06:18:26,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-09 06:18:26,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:26,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:18:26,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:26,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59221572] [2025-03-09 06:18:26,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59221572] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:18:26,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748428109] [2025-03-09 06:18:26,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:26,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:18:26,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:18:26,835 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) [2025-03-09 06:18:26,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 06:18:26,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-09 06:18:27,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-09 06:18:27,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:27,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:27,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 06:18:27,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:18:27,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:18:27,092 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:18:27,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748428109] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:18:27,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:18:27,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2025-03-09 06:18:27,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185665910] [2025-03-09 06:18:27,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:18:27,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:18:27,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:27,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:18:27,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-03-09 06:18:27,094 INFO L87 Difference]: Start difference. First operand 1061 states and 1484 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 06:18:27,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:27,239 INFO L93 Difference]: Finished difference Result 1431 states and 1995 transitions. [2025-03-09 06:18:27,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:18:27,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 81 [2025-03-09 06:18:27,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:27,247 INFO L225 Difference]: With dead ends: 1431 [2025-03-09 06:18:27,247 INFO L226 Difference]: Without dead ends: 1430 [2025-03-09 06:18:27,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2025-03-09 06:18:27,249 INFO L435 NwaCegarLoop]: 550 mSDtfsCounter, 554 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 1581 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:27,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 1581 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:18:27,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2025-03-09 06:18:27,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 1381. [2025-03-09 06:18:27,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1381 states, 1320 states have (on average 1.4128787878787878) internal successors, (1865), 1339 states have internal predecessors, (1865), 37 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (37), 30 states have call predecessors, (37), 37 states have call successors, (37) [2025-03-09 06:18:27,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1939 transitions. [2025-03-09 06:18:27,296 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1939 transitions. Word has length 81 [2025-03-09 06:18:27,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:27,297 INFO L471 AbstractCegarLoop]: Abstraction has 1381 states and 1939 transitions. [2025-03-09 06:18:27,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 06:18:27,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1939 transitions. [2025-03-09 06:18:27,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-03-09 06:18:27,298 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:27,298 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:18:27,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-09 06:18:27,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:18:27,498 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:27,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:27,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1459426639, now seen corresponding path program 1 times [2025-03-09 06:18:27,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:27,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409902574] [2025-03-09 06:18:27,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:27,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:27,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-09 06:18:27,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-09 06:18:27,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:27,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:27,757 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:18:27,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:27,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409902574] [2025-03-09 06:18:27,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409902574] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:18:27,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752569156] [2025-03-09 06:18:27,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:27,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:18:27,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:18:27,761 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) [2025-03-09 06:18:27,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 06:18:27,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-09 06:18:27,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-09 06:18:27,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:27,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:27,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 06:18:27,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:18:28,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:18:28,132 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:18:28,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:18:28,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752569156] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:18:28,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:18:28,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 17 [2025-03-09 06:18:28,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666629904] [2025-03-09 06:18:28,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:18:28,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-09 06:18:28,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:28,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-09 06:18:28,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2025-03-09 06:18:28,343 INFO L87 Difference]: Start difference. First operand 1381 states and 1939 transitions. Second operand has 18 states, 17 states have (on average 12.882352941176471) internal successors, (219), 15 states have internal predecessors, (219), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-09 06:18:29,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:29,606 INFO L93 Difference]: Finished difference Result 3730 states and 5221 transitions. [2025-03-09 06:18:29,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-09 06:18:29,609 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 12.882352941176471) internal successors, (219), 15 states have internal predecessors, (219), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) Word has length 82 [2025-03-09 06:18:29,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:29,629 INFO L225 Difference]: With dead ends: 3730 [2025-03-09 06:18:29,629 INFO L226 Difference]: Without dead ends: 3728 [2025-03-09 06:18:29,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=376, Invalid=884, Unknown=0, NotChecked=0, Total=1260 [2025-03-09 06:18:29,632 INFO L435 NwaCegarLoop]: 607 mSDtfsCounter, 5253 mSDsluCounter, 5797 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5278 SdHoareTripleChecker+Valid, 6404 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:29,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5278 Valid, 6404 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-09 06:18:29,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3728 states. [2025-03-09 06:18:29,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3728 to 2763. [2025-03-09 06:18:29,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2643 states have (on average 1.3946273174423005) internal successors, (3686), 2664 states have internal predecessors, (3686), 83 states have call successors, (83), 28 states have call predecessors, (83), 23 states have return successors, (106), 70 states have call predecessors, (106), 83 states have call successors, (106) [2025-03-09 06:18:29,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 3875 transitions. [2025-03-09 06:18:29,708 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 3875 transitions. Word has length 82 [2025-03-09 06:18:29,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:29,708 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 3875 transitions. [2025-03-09 06:18:29,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 12.882352941176471) internal successors, (219), 15 states have internal predecessors, (219), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-09 06:18:29,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 3875 transitions. [2025-03-09 06:18:29,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-09 06:18:29,709 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:29,709 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:18:29,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-09 06:18:29,910 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 [2025-03-09 06:18:29,911 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:29,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:29,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1021200483, now seen corresponding path program 1 times [2025-03-09 06:18:29,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:29,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813897840] [2025-03-09 06:18:29,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:29,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:29,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-09 06:18:29,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-09 06:18:29,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:29,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:30,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:18:30,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:30,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813897840] [2025-03-09 06:18:30,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813897840] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:18:30,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:18:30,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:18:30,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143114637] [2025-03-09 06:18:30,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:18:30,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:18:30,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:30,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:18:30,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:18:30,002 INFO L87 Difference]: Start difference. First operand 2763 states and 3875 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2025-03-09 06:18:30,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:30,222 INFO L93 Difference]: Finished difference Result 5779 states and 8147 transitions. [2025-03-09 06:18:30,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:18:30,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2025-03-09 06:18:30,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:30,233 INFO L225 Difference]: With dead ends: 5779 [2025-03-09 06:18:30,233 INFO L226 Difference]: Without dead ends: 3025 [2025-03-09 06:18:30,237 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 [2025-03-09 06:18:30,237 INFO L435 NwaCegarLoop]: 767 mSDtfsCounter, 341 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:30,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1291 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:18:30,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2025-03-09 06:18:30,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 2914. [2025-03-09 06:18:30,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2800 states have (on average 1.4082142857142856) internal successors, (3943), 2820 states have internal predecessors, (3943), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2025-03-09 06:18:30,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 4125 transitions. [2025-03-09 06:18:30,302 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 4125 transitions. Word has length 80 [2025-03-09 06:18:30,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:30,302 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 4125 transitions. [2025-03-09 06:18:30,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2025-03-09 06:18:30,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 4125 transitions. [2025-03-09 06:18:30,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-03-09 06:18:30,303 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:30,303 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:18:30,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 06:18:30,304 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:30,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:30,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1189884257, now seen corresponding path program 1 times [2025-03-09 06:18:30,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:30,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287388569] [2025-03-09 06:18:30,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:30,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:30,333 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-09 06:18:30,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-09 06:18:30,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:30,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:30,547 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-09 06:18:30,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:30,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287388569] [2025-03-09 06:18:30,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287388569] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:18:30,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995125725] [2025-03-09 06:18:30,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:30,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:18:30,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:18:30,550 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) [2025-03-09 06:18:30,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 06:18:30,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-09 06:18:30,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-09 06:18:30,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:30,768 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:30,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 06:18:30,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:18:30,895 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:18:30,895 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:18:31,071 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-09 06:18:31,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995125725] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-09 06:18:31,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-09 06:18:31,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 4] total 12 [2025-03-09 06:18:31,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955258411] [2025-03-09 06:18:31,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:18:31,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:18:31,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:31,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:18:31,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2025-03-09 06:18:31,074 INFO L87 Difference]: Start difference. First operand 2914 states and 4125 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 06:18:31,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:31,227 INFO L93 Difference]: Finished difference Result 2914 states and 4125 transitions. [2025-03-09 06:18:31,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:18:31,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 91 [2025-03-09 06:18:31,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:31,238 INFO L225 Difference]: With dead ends: 2914 [2025-03-09 06:18:31,238 INFO L226 Difference]: Without dead ends: 2913 [2025-03-09 06:18:31,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2025-03-09 06:18:31,240 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 1635 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:31,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1635 Valid, 555 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 06:18:31,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2025-03-09 06:18:31,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2913. [2025-03-09 06:18:31,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2913 states, 2800 states have (on average 1.4064285714285714) internal successors, (3938), 2819 states have internal predecessors, (3938), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2025-03-09 06:18:31,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2913 states to 2913 states and 4120 transitions. [2025-03-09 06:18:31,326 INFO L78 Accepts]: Start accepts. Automaton has 2913 states and 4120 transitions. Word has length 91 [2025-03-09 06:18:31,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:31,327 INFO L471 AbstractCegarLoop]: Abstraction has 2913 states and 4120 transitions. [2025-03-09 06:18:31,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 06:18:31,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2913 states and 4120 transitions. [2025-03-09 06:18:31,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-03-09 06:18:31,328 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:31,328 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:18:31,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-09 06:18:31,528 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,SelfDestructingSolverStorable10 [2025-03-09 06:18:31,529 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:31,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:31,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1768293694, now seen corresponding path program 1 times [2025-03-09 06:18:31,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:31,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056744190] [2025-03-09 06:18:31,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:31,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:31,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-09 06:18:31,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-09 06:18:31,576 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:31,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:31,746 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-09 06:18:31,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:31,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056744190] [2025-03-09 06:18:31,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056744190] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:18:31,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51748560] [2025-03-09 06:18:31,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:31,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:18:31,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:18:31,753 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) [2025-03-09 06:18:31,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 06:18:31,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-09 06:18:31,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-09 06:18:31,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:31,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:31,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 06:18:31,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:18:32,088 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:18:32,088 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:18:32,224 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-09 06:18:32,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51748560] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:18:32,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:18:32,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 12 [2025-03-09 06:18:32,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483645951] [2025-03-09 06:18:32,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:18:32,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-09 06:18:32,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:32,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-09 06:18:32,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2025-03-09 06:18:32,226 INFO L87 Difference]: Start difference. First operand 2913 states and 4120 transitions. Second operand has 13 states, 12 states have (on average 19.25) internal successors, (231), 13 states have internal predecessors, (231), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2025-03-09 06:18:32,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:32,893 INFO L93 Difference]: Finished difference Result 5845 states and 8268 transitions. [2025-03-09 06:18:32,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-09 06:18:32,894 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 19.25) internal successors, (231), 13 states have internal predecessors, (231), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 92 [2025-03-09 06:18:32,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:32,911 INFO L225 Difference]: With dead ends: 5845 [2025-03-09 06:18:32,911 INFO L226 Difference]: Without dead ends: 5844 [2025-03-09 06:18:32,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=152, Invalid=268, Unknown=0, NotChecked=0, Total=420 [2025-03-09 06:18:32,914 INFO L435 NwaCegarLoop]: 523 mSDtfsCounter, 1559 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 3318 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:32,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 3318 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-09 06:18:32,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5844 states. [2025-03-09 06:18:33,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5844 to 5411. [2025-03-09 06:18:33,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5411 states, 5189 states have (on average 1.406051262285604) internal successors, (7296), 5213 states have internal predecessors, (7296), 159 states have call successors, (159), 56 states have call predecessors, (159), 50 states have return successors, (197), 141 states have call predecessors, (197), 159 states have call successors, (197) [2025-03-09 06:18:33,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5411 states to 5411 states and 7652 transitions. [2025-03-09 06:18:33,041 INFO L78 Accepts]: Start accepts. Automaton has 5411 states and 7652 transitions. Word has length 92 [2025-03-09 06:18:33,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:33,041 INFO L471 AbstractCegarLoop]: Abstraction has 5411 states and 7652 transitions. [2025-03-09 06:18:33,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 19.25) internal successors, (231), 13 states have internal predecessors, (231), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2025-03-09 06:18:33,041 INFO L276 IsEmpty]: Start isEmpty. Operand 5411 states and 7652 transitions. [2025-03-09 06:18:33,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-09 06:18:33,042 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:33,042 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2025-03-09 06:18:33,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-09 06:18:33,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:18:33,243 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:33,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:33,243 INFO L85 PathProgramCache]: Analyzing trace with hash -69961688, now seen corresponding path program 1 times [2025-03-09 06:18:33,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:33,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070270181] [2025-03-09 06:18:33,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:33,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:33,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-09 06:18:33,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-09 06:18:33,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:33,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:33,476 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-09 06:18:33,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:33,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070270181] [2025-03-09 06:18:33,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070270181] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:18:33,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:18:33,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:18:33,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402053043] [2025-03-09 06:18:33,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:18:33,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:18:33,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:33,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:18:33,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:18:33,478 INFO L87 Difference]: Start difference. First operand 5411 states and 7652 transitions. Second operand has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-09 06:18:33,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:33,726 INFO L93 Difference]: Finished difference Result 7643 states and 10875 transitions. [2025-03-09 06:18:33,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:18:33,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 118 [2025-03-09 06:18:33,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:33,756 INFO L225 Difference]: With dead ends: 7643 [2025-03-09 06:18:33,756 INFO L226 Difference]: Without dead ends: 7641 [2025-03-09 06:18:33,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:18:33,761 INFO L435 NwaCegarLoop]: 537 mSDtfsCounter, 441 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:33,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1593 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:18:33,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7641 states. [2025-03-09 06:18:33,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7641 to 5577. [2025-03-09 06:18:33,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5577 states, 5346 states have (on average 1.401421623643846) internal successors, (7492), 5371 states have internal predecessors, (7492), 168 states have call successors, (168), 56 states have call predecessors, (168), 50 states have return successors, (209), 149 states have call predecessors, (209), 168 states have call successors, (209) [2025-03-09 06:18:33,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5577 states to 5577 states and 7869 transitions. [2025-03-09 06:18:33,926 INFO L78 Accepts]: Start accepts. Automaton has 5577 states and 7869 transitions. Word has length 118 [2025-03-09 06:18:33,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:33,926 INFO L471 AbstractCegarLoop]: Abstraction has 5577 states and 7869 transitions. [2025-03-09 06:18:33,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.666666666666664) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-09 06:18:33,927 INFO L276 IsEmpty]: Start isEmpty. Operand 5577 states and 7869 transitions. [2025-03-09 06:18:33,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-03-09 06:18:33,930 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:33,930 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:18:33,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-09 06:18:33,930 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:33,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:33,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1879760466, now seen corresponding path program 1 times [2025-03-09 06:18:33,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:33,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122335610] [2025-03-09 06:18:33,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:33,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:33,966 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-03-09 06:18:34,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-03-09 06:18:34,005 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:34,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:34,222 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-09 06:18:34,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:34,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122335610] [2025-03-09 06:18:34,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122335610] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:18:34,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932308331] [2025-03-09 06:18:34,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:34,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:18:34,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:18:34,226 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) [2025-03-09 06:18:34,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-09 06:18:34,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-03-09 06:18:34,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-03-09 06:18:34,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:34,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:34,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-09 06:18:34,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:18:34,630 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-09 06:18:34,630 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:18:34,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932308331] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:18:34,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:18:34,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2025-03-09 06:18:34,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964160046] [2025-03-09 06:18:34,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:18:34,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 06:18:34,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:34,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 06:18:34,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-09 06:18:34,631 INFO L87 Difference]: Start difference. First operand 5577 states and 7869 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 06:18:34,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:34,919 INFO L93 Difference]: Finished difference Result 10632 states and 15058 transitions. [2025-03-09 06:18:34,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 06:18:34,920 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 125 [2025-03-09 06:18:34,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:34,932 INFO L225 Difference]: With dead ends: 10632 [2025-03-09 06:18:34,933 INFO L226 Difference]: Without dead ends: 5371 [2025-03-09 06:18:34,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2025-03-09 06:18:34,942 INFO L435 NwaCegarLoop]: 535 mSDtfsCounter, 85 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:34,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 2594 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:18:34,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5371 states. [2025-03-09 06:18:35,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5371 to 5371. [2025-03-09 06:18:35,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 5157 states have (on average 1.4058561178980027) internal successors, (7250), 5180 states have internal predecessors, (7250), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2025-03-09 06:18:35,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 7599 transitions. [2025-03-09 06:18:35,077 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 7599 transitions. Word has length 125 [2025-03-09 06:18:35,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:35,077 INFO L471 AbstractCegarLoop]: Abstraction has 5371 states and 7599 transitions. [2025-03-09 06:18:35,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 06:18:35,078 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 7599 transitions. [2025-03-09 06:18:35,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-09 06:18:35,081 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:35,081 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2025-03-09 06:18:35,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-09 06:18:35,286 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 [2025-03-09 06:18:35,286 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:35,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:35,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1995254625, now seen corresponding path program 1 times [2025-03-09 06:18:35,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:35,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79263711] [2025-03-09 06:18:35,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:35,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:35,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-09 06:18:35,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-09 06:18:35,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:35,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:35,703 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 06:18:35,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:35,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79263711] [2025-03-09 06:18:35,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79263711] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:18:35,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999970173] [2025-03-09 06:18:35,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:35,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:18:35,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:18:35,707 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) [2025-03-09 06:18:35,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-09 06:18:35,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-09 06:18:36,016 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-09 06:18:36,016 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:36,016 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:36,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-09 06:18:36,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:18:36,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-09 06:18:36,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-09 06:18:36,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2025-03-09 06:18:36,583 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-09 06:18:36,584 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:18:36,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999970173] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:18:36,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:18:36,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2025-03-09 06:18:36,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525807514] [2025-03-09 06:18:36,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:18:36,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 06:18:36,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:36,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 06:18:36,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2025-03-09 06:18:36,585 INFO L87 Difference]: Start difference. First operand 5371 states and 7599 transitions. Second operand has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:18:37,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:37,772 INFO L93 Difference]: Finished difference Result 12775 states and 18156 transitions. [2025-03-09 06:18:37,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 06:18:37,772 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 130 [2025-03-09 06:18:37,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:37,790 INFO L225 Difference]: With dead ends: 12775 [2025-03-09 06:18:37,791 INFO L226 Difference]: Without dead ends: 7449 [2025-03-09 06:18:37,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2025-03-09 06:18:37,800 INFO L435 NwaCegarLoop]: 538 mSDtfsCounter, 649 mSDsluCounter, 2382 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:37,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 2920 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-09 06:18:37,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7449 states. [2025-03-09 06:18:37,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7449 to 5371. [2025-03-09 06:18:37,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 5157 states have (on average 1.4056622067093272) internal successors, (7249), 5180 states have internal predecessors, (7249), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2025-03-09 06:18:37,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 7598 transitions. [2025-03-09 06:18:37,915 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 7598 transitions. Word has length 130 [2025-03-09 06:18:37,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:37,916 INFO L471 AbstractCegarLoop]: Abstraction has 5371 states and 7598 transitions. [2025-03-09 06:18:37,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:18:37,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 7598 transitions. [2025-03-09 06:18:37,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-03-09 06:18:37,917 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:37,918 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2025-03-09 06:18:37,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-09 06:18:38,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-09 06:18:38,118 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:38,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:38,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1587166958, now seen corresponding path program 1 times [2025-03-09 06:18:38,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:38,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550209641] [2025-03-09 06:18:38,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:38,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:38,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-09 06:18:38,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-09 06:18:38,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:38,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:38,412 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 06:18:38,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:38,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550209641] [2025-03-09 06:18:38,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550209641] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:18:38,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002233770] [2025-03-09 06:18:38,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:38,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:18:38,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:18:38,415 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:18:38,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-09 06:18:38,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-09 06:18:38,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-09 06:18:38,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:38,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:38,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-09 06:18:38,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:18:38,805 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:18:38,805 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:18:38,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002233770] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:18:38,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:18:38,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 11 [2025-03-09 06:18:38,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101086461] [2025-03-09 06:18:38,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:18:38,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 06:18:38,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:38,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 06:18:38,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-03-09 06:18:38,806 INFO L87 Difference]: Start difference. First operand 5371 states and 7598 transitions. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-09 06:18:39,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:39,050 INFO L93 Difference]: Finished difference Result 8203 states and 11569 transitions. [2025-03-09 06:18:39,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 06:18:39,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 131 [2025-03-09 06:18:39,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:39,058 INFO L225 Difference]: With dead ends: 8203 [2025-03-09 06:18:39,059 INFO L226 Difference]: Without dead ends: 2915 [2025-03-09 06:18:39,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-09 06:18:39,067 INFO L435 NwaCegarLoop]: 547 mSDtfsCounter, 13 mSDsluCounter, 3791 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4338 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:39,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4338 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 06:18:39,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2025-03-09 06:18:39,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 2913. [2025-03-09 06:18:39,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2913 states, 2775 states have (on average 1.3931531531531531) internal successors, (3866), 2791 states have internal predecessors, (3866), 86 states have call successors, (86), 42 states have call predecessors, (86), 39 states have return successors, (97), 79 states have call predecessors, (97), 86 states have call successors, (97) [2025-03-09 06:18:39,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2913 states to 2913 states and 4049 transitions. [2025-03-09 06:18:39,161 INFO L78 Accepts]: Start accepts. Automaton has 2913 states and 4049 transitions. Word has length 131 [2025-03-09 06:18:39,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:39,163 INFO L471 AbstractCegarLoop]: Abstraction has 2913 states and 4049 transitions. [2025-03-09 06:18:39,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-09 06:18:39,163 INFO L276 IsEmpty]: Start isEmpty. Operand 2913 states and 4049 transitions. [2025-03-09 06:18:39,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-03-09 06:18:39,164 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:39,164 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2025-03-09 06:18:39,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-09 06:18:39,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-09 06:18:39,368 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:39,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:39,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1796911606, now seen corresponding path program 1 times [2025-03-09 06:18:39,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:39,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622436372] [2025-03-09 06:18:39,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:39,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:39,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-09 06:18:39,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-09 06:18:39,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:39,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:43,509 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 06:18:43,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:43,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622436372] [2025-03-09 06:18:43,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622436372] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:18:43,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372106559] [2025-03-09 06:18:43,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:43,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:18:43,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:18:43,512 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:18:43,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-09 06:18:43,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-09 06:18:43,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-09 06:18:43,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:43,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:43,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-09 06:18:43,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:18:44,044 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 06:18:44,044 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:18:44,225 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-09 06:18:44,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372106559] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:18:44,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:18:44,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 10, 6] total 41 [2025-03-09 06:18:44,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483639810] [2025-03-09 06:18:44,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:18:44,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-03-09 06:18:44,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:44,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-03-09 06:18:44,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1526, Unknown=0, NotChecked=0, Total=1640 [2025-03-09 06:18:44,229 INFO L87 Difference]: Start difference. First operand 2913 states and 4049 transitions. Second operand has 41 states, 38 states have (on average 6.368421052631579) internal successors, (242), 38 states have internal predecessors, (242), 8 states have call successors, (13), 4 states have call predecessors, (13), 10 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2025-03-09 06:18:48,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:48,559 INFO L93 Difference]: Finished difference Result 6778 states and 9484 transitions. [2025-03-09 06:18:48,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-03-09 06:18:48,559 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 38 states have (on average 6.368421052631579) internal successors, (242), 38 states have internal predecessors, (242), 8 states have call successors, (13), 4 states have call predecessors, (13), 10 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 133 [2025-03-09 06:18:48,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:48,570 INFO L225 Difference]: With dead ends: 6778 [2025-03-09 06:18:48,571 INFO L226 Difference]: Without dead ends: 3948 [2025-03-09 06:18:48,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1437 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=521, Invalid=5799, Unknown=0, NotChecked=0, Total=6320 [2025-03-09 06:18:48,577 INFO L435 NwaCegarLoop]: 486 mSDtfsCounter, 564 mSDsluCounter, 13850 mSDsCounter, 0 mSdLazyCounter, 4988 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 14336 SdHoareTripleChecker+Invalid, 5063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 4988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:48,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 14336 Invalid, 5063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 4988 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2025-03-09 06:18:48,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3948 states. [2025-03-09 06:18:48,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3948 to 2995. [2025-03-09 06:18:48,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2995 states, 2853 states have (on average 1.3901156677181914) internal successors, (3966), 2866 states have internal predecessors, (3966), 86 states have call successors, (86), 46 states have call predecessors, (86), 43 states have return successors, (99), 82 states have call predecessors, (99), 86 states have call successors, (99) [2025-03-09 06:18:48,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 4151 transitions. [2025-03-09 06:18:48,698 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 4151 transitions. Word has length 133 [2025-03-09 06:18:48,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:48,699 INFO L471 AbstractCegarLoop]: Abstraction has 2995 states and 4151 transitions. [2025-03-09 06:18:48,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 38 states have (on average 6.368421052631579) internal successors, (242), 38 states have internal predecessors, (242), 8 states have call successors, (13), 4 states have call predecessors, (13), 10 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2025-03-09 06:18:48,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 4151 transitions. [2025-03-09 06:18:48,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-03-09 06:18:48,700 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:48,700 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2025-03-09 06:18:48,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-09 06:18:48,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-09 06:18:48,901 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:48,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:48,902 INFO L85 PathProgramCache]: Analyzing trace with hash -276624723, now seen corresponding path program 1 times [2025-03-09 06:18:48,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:48,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841041075] [2025-03-09 06:18:48,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:48,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:48,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-09 06:18:49,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-09 06:18:49,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:49,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:49,279 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-09 06:18:49,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:49,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841041075] [2025-03-09 06:18:49,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841041075] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:18:49,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720131335] [2025-03-09 06:18:49,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:49,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:18:49,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:18:49,282 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:18:49,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-09 06:18:49,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-09 06:18:49,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-09 06:18:49,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:49,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:49,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-09 06:18:49,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:18:49,756 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-09 06:18:49,756 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:18:49,991 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-09 06:18:49,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720131335] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:18:49,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:18:49,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 9] total 27 [2025-03-09 06:18:49,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692060500] [2025-03-09 06:18:49,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:18:49,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-09 06:18:49,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:49,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-09 06:18:49,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2025-03-09 06:18:49,993 INFO L87 Difference]: Start difference. First operand 2995 states and 4151 transitions. Second operand has 27 states, 27 states have (on average 6.037037037037037) internal successors, (163), 27 states have internal predecessors, (163), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-09 06:18:50,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:50,895 INFO L93 Difference]: Finished difference Result 5956 states and 8294 transitions. [2025-03-09 06:18:50,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-09 06:18:50,896 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.037037037037037) internal successors, (163), 27 states have internal predecessors, (163), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 137 [2025-03-09 06:18:50,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:50,902 INFO L225 Difference]: With dead ends: 5956 [2025-03-09 06:18:50,902 INFO L226 Difference]: Without dead ends: 3032 [2025-03-09 06:18:50,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=380, Invalid=1512, Unknown=0, NotChecked=0, Total=1892 [2025-03-09 06:18:50,906 INFO L435 NwaCegarLoop]: 536 mSDtfsCounter, 51 mSDsluCounter, 5863 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 6399 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:50,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 6399 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 06:18:50,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2025-03-09 06:18:50,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 2998. [2025-03-09 06:18:50,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2998 states, 2859 states have (on average 1.3882476390346274) internal successors, (3969), 2872 states have internal predecessors, (3969), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2025-03-09 06:18:50,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2998 states to 2998 states and 4148 transitions. [2025-03-09 06:18:50,976 INFO L78 Accepts]: Start accepts. Automaton has 2998 states and 4148 transitions. Word has length 137 [2025-03-09 06:18:50,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:50,976 INFO L471 AbstractCegarLoop]: Abstraction has 2998 states and 4148 transitions. [2025-03-09 06:18:50,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.037037037037037) internal successors, (163), 27 states have internal predecessors, (163), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-09 06:18:50,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2998 states and 4148 transitions. [2025-03-09 06:18:50,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-03-09 06:18:50,977 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:50,977 INFO L218 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2025-03-09 06:18:50,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-09 06:18:51,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-09 06:18:51,178 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:51,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:51,178 INFO L85 PathProgramCache]: Analyzing trace with hash 58161071, now seen corresponding path program 2 times [2025-03-09 06:18:51,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:51,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629867056] [2025-03-09 06:18:51,178 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:18:51,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:51,210 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 146 statements into 2 equivalence classes. [2025-03-09 06:18:51,312 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 146 of 146 statements. [2025-03-09 06:18:51,312 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:18:51,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:51,809 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 6 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-09 06:18:51,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:51,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629867056] [2025-03-09 06:18:51,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629867056] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:18:51,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732886485] [2025-03-09 06:18:51,809 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:18:51,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:18:51,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:18:51,812 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:18:51,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-09 06:18:52,057 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 146 statements into 2 equivalence classes. [2025-03-09 06:18:52,069 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 146 statements. [2025-03-09 06:18:52,069 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:18:52,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:52,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:18:52,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:18:52,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-09 06:18:52,095 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2025-03-09 06:18:52,096 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:18:52,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732886485] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:18:52,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:18:52,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15] total 16 [2025-03-09 06:18:52,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040334509] [2025-03-09 06:18:52,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:18:52,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:18:52,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:18:52,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:18:52,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2025-03-09 06:18:52,097 INFO L87 Difference]: Start difference. First operand 2998 states and 4148 transitions. Second operand has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:18:52,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 06:18:52,194 INFO L93 Difference]: Finished difference Result 2998 states and 4148 transitions. [2025-03-09 06:18:52,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:18:52,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 146 [2025-03-09 06:18:52,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 06:18:52,203 INFO L225 Difference]: With dead ends: 2998 [2025-03-09 06:18:52,203 INFO L226 Difference]: Without dead ends: 2997 [2025-03-09 06:18:52,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2025-03-09 06:18:52,204 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 1 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 06:18:52,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1108 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 06:18:52,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2025-03-09 06:18:52,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 2997. [2025-03-09 06:18:52,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2997 states, 2859 states have (on average 1.3861490031479538) internal successors, (3963), 2871 states have internal predecessors, (3963), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2025-03-09 06:18:52,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2997 states to 2997 states and 4142 transitions. [2025-03-09 06:18:52,275 INFO L78 Accepts]: Start accepts. Automaton has 2997 states and 4142 transitions. Word has length 146 [2025-03-09 06:18:52,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 06:18:52,275 INFO L471 AbstractCegarLoop]: Abstraction has 2997 states and 4142 transitions. [2025-03-09 06:18:52,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 06:18:52,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2997 states and 4142 transitions. [2025-03-09 06:18:52,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-09 06:18:52,277 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 06:18:52,277 INFO L218 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2025-03-09 06:18:52,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-09 06:18:52,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:18:52,477 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-09 06:18:52,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:18:52,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1802993950, now seen corresponding path program 1 times [2025-03-09 06:18:52,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:18:52,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705221768] [2025-03-09 06:18:52,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:52,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:18:52,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-09 06:18:52,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-09 06:18:52,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:52,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:53,059 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-09 06:18:53,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:18:53,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705221768] [2025-03-09 06:18:53,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705221768] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:18:53,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646349581] [2025-03-09 06:18:53,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:18:53,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:18:53,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:18:53,062 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:18:53,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-09 06:18:53,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-09 06:18:53,599 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-09 06:18:53,599 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:18:53,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:18:53,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-09 06:18:53,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:19:26,208 WARN L286 SmtUtils]: Spent 6.70s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)