./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 10:38:43,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 10:38:43,362 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-17 10:38:43,368 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 10:38:43,368 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 10:38:43,388 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 10:38:43,390 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 10:38:43,390 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 10:38:43,390 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 10:38:43,391 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 10:38:43,391 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 10:38:43,391 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 10:38:43,392 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 10:38:43,392 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 10:38:43,392 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 10:38:43,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 10:38:43,393 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 10:38:43,393 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 10:38:43,393 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 10:38:43,393 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 10:38:43,393 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 10:38:43,393 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 10:38:43,393 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 10:38:43,393 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 10:38:43,393 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 10:38:43,393 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 10:38:43,393 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 10:38:43,393 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 10:38:43,393 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 10:38:43,393 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 10:38:43,394 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 10:38:43,394 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 10:38:43,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 10:38:43,394 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 10:38:43,394 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 10:38:43,394 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 10:38:43,394 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 10:38:43,394 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 10:38:43,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 10:38:43,395 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 10:38:43,395 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 10:38:43,395 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 10:38:43,395 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 10:38:43,395 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 ! call(reach_error())) ) 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 [2025-03-17 10:38:43,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 10:38:43,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 10:38:43,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 10:38:43,636 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 10:38:43,636 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 10:38:43,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2025-03-17 10:38:44,754 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c87afd91b/b18fa400e45e46dfa2f1857faac8e5b3/FLAG81ddae000 [2025-03-17 10:38:45,059 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 10:38:45,060 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2025-03-17 10:38:45,071 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c87afd91b/b18fa400e45e46dfa2f1857faac8e5b3/FLAG81ddae000 [2025-03-17 10:38:45,324 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c87afd91b/b18fa400e45e46dfa2f1857faac8e5b3 [2025-03-17 10:38:45,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 10:38:45,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 10:38:45,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 10:38:45,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 10:38:45,331 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 10:38:45,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 10:38:45" (1/1) ... [2025-03-17 10:38:45,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@639c55b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:38:45, skipping insertion in model container [2025-03-17 10:38:45,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 10:38:45" (1/1) ... [2025-03-17 10:38:45,370 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 10:38:45,755 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44118,44131] [2025-03-17 10:38:45,763 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44660,44673] [2025-03-17 10:38:45,846 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56247,56260] [2025-03-17 10:38:45,846 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56368,56381] [2025-03-17 10:38:45,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 10:38:45,870 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 10:38:45,902 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44118,44131] [2025-03-17 10:38:45,903 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44660,44673] [2025-03-17 10:38:45,938 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56247,56260] [2025-03-17 10:38:45,939 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56368,56381] [2025-03-17 10:38:45,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 10:38:45,984 INFO L204 MainTranslator]: Completed translation [2025-03-17 10:38:45,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:38:45 WrapperNode [2025-03-17 10:38:45,985 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 10:38:45,986 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 10:38:45,986 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 10:38:45,986 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 10:38:45,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:38:45" (1/1) ... [2025-03-17 10:38:46,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:38:45" (1/1) ... [2025-03-17 10:38:46,067 INFO L138 Inliner]: procedures = 282, calls = 349, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1595 [2025-03-17 10:38:46,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 10:38:46,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 10:38:46,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 10:38:46,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 10:38:46,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:38:45" (1/1) ... [2025-03-17 10:38:46,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:38:45" (1/1) ... [2025-03-17 10:38:46,082 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:38:45" (1/1) ... [2025-03-17 10:38:46,175 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]. [2025-03-17 10:38:46,175 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:38:45" (1/1) ... [2025-03-17 10:38:46,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:38:45" (1/1) ... [2025-03-17 10:38:46,201 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:38:45" (1/1) ... [2025-03-17 10:38:46,203 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:38:45" (1/1) ... [2025-03-17 10:38:46,213 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:38:45" (1/1) ... [2025-03-17 10:38:46,221 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:38:45" (1/1) ... [2025-03-17 10:38:46,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 10:38:46,236 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 10:38:46,236 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 10:38:46,236 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 10:38:46,237 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:38:45" (1/1) ... [2025-03-17 10:38:46,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 10:38:46,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 10:38:46,262 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 10:38:46,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 10:38:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 10:38:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 10:38:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 10:38:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 10:38:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 10:38:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 10:38:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-03-17 10:38:46,286 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-03-17 10:38:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 10:38:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 10:38:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 10:38:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 10:38:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 10:38:46,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 10:38:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 10:38:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 10:38:46,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 10:38:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 10:38:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 10:38:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 10:38:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-03-17 10:38:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-03-17 10:38:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 10:38:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 10:38:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 10:38:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 10:38:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-03-17 10:38:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-03-17 10:38:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 10:38:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 10:38:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 10:38:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 10:38:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 10:38:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 10:38:46,465 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 10:38:46,466 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 10:38:46,520 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L955: havoc #t~malloc32.base, #t~malloc32.offset; [2025-03-17 10:38:47,618 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc alt_memcmp_#t~nondet36#1; [2025-03-17 10:38:47,619 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc real_malloc_#t~malloc39#1.base, real_malloc_#t~malloc39#1.offset; [2025-03-17 10:38:47,619 INFO L1322 $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; [2025-03-17 10:38:47,695 INFO L? ?]: Removed 359 outVars from TransFormulas that were not future-live. [2025-03-17 10:38:47,695 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 10:38:47,739 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 10:38:47,743 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-17 10:38:47,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 10:38:47 BoogieIcfgContainer [2025-03-17 10:38:47,744 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 10:38:47,745 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 10:38:47,745 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 10:38:47,749 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 10:38:47,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 10:38:45" (1/3) ... [2025-03-17 10:38:47,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce6f5ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 10:38:47, skipping insertion in model container [2025-03-17 10:38:47,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:38:45" (2/3) ... [2025-03-17 10:38:47,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce6f5ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 10:38:47, skipping insertion in model container [2025-03-17 10:38:47,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 10:38:47" (3/3) ... [2025-03-17 10:38:47,752 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-2.i [2025-03-17 10:38:47,762 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 10:38:47,764 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test6-2.i that has 5 procedures, 463 locations, 1 initial locations, 39 loop locations, and 4 error locations. [2025-03-17 10:38:47,816 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:38:47,825 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;@4c4170c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:38:47,826 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-17 10:38:47,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 463 states, 439 states have (on average 1.5990888382687927) internal successors, (702), 443 states have internal predecessors, (702), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-17 10:38:47,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 10:38:47,835 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:38:47,836 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:38:47,836 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:38:47,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:38:47,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1956630904, now seen corresponding path program 1 times [2025-03-17 10:38:47,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:38:47,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585460451] [2025-03-17 10:38:47,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:38:47,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:38:47,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 10:38:47,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 10:38:47,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:38:47,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:38:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:38:47,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:38:47,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585460451] [2025-03-17 10:38:47,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585460451] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:38:47,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:38:47,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:38:47,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301625870] [2025-03-17 10:38:47,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:38:47,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 10:38:47,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:38:47,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 10:38:47,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 10:38:47,993 INFO L87 Difference]: Start difference. First operand has 463 states, 439 states have (on average 1.5990888382687927) internal successors, (702), 443 states have internal predecessors, (702), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:48,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:38:48,118 INFO L93 Difference]: Finished difference Result 923 states and 1476 transitions. [2025-03-17 10:38:48,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 10:38:48,121 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-17 10:38:48,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:38:48,131 INFO L225 Difference]: With dead ends: 923 [2025-03-17 10:38:48,133 INFO L226 Difference]: Without dead ends: 458 [2025-03-17 10:38:48,136 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 [2025-03-17 10:38:48,138 INFO L435 NwaCegarLoop]: 614 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 614 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 [2025-03-17 10:38:48,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 614 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 10:38:48,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2025-03-17 10:38:48,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2025-03-17 10:38:48,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 435 states have (on average 1.4344827586206896) internal successors, (624), 439 states have internal predecessors, (624), 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) [2025-03-17 10:38:48,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 654 transitions. [2025-03-17 10:38:48,193 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 654 transitions. Word has length 7 [2025-03-17 10:38:48,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:38:48,193 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 654 transitions. [2025-03-17 10:38:48,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:48,194 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 654 transitions. [2025-03-17 10:38:48,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-17 10:38:48,194 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:38:48,194 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:38:48,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 10:38:48,194 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:38:48,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:38:48,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1918154703, now seen corresponding path program 1 times [2025-03-17 10:38:48,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:38:48,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515573881] [2025-03-17 10:38:48,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:38:48,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:38:48,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 10:38:48,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 10:38:48,237 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:38:48,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:38:48,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:38:48,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:38:48,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515573881] [2025-03-17 10:38:48,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515573881] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:38:48,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:38:48,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 10:38:48,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686044373] [2025-03-17 10:38:48,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:38:48,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 10:38:48,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:38:48,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 10:38:48,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 10:38:48,349 INFO L87 Difference]: Start difference. First operand 458 states and 654 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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) [2025-03-17 10:38:48,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:38:48,596 INFO L93 Difference]: Finished difference Result 1138 states and 1634 transitions. [2025-03-17 10:38:48,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 10:38:48,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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 [2025-03-17 10:38:48,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:38:48,600 INFO L225 Difference]: With dead ends: 1138 [2025-03-17 10:38:48,600 INFO L226 Difference]: Without dead ends: 891 [2025-03-17 10:38:48,601 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 [2025-03-17 10:38:48,602 INFO L435 NwaCegarLoop]: 605 mSDtfsCounter, 599 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 10:38:48,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 1785 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 10:38:48,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2025-03-17 10:38:48,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 460. [2025-03-17 10:38:48,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 437 states have (on average 1.4324942791762014) internal successors, (626), 441 states have internal predecessors, (626), 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) [2025-03-17 10:38:48,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 656 transitions. [2025-03-17 10:38:48,641 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 656 transitions. Word has length 9 [2025-03-17 10:38:48,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:38:48,642 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 656 transitions. [2025-03-17 10:38:48,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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) [2025-03-17 10:38:48,642 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 656 transitions. [2025-03-17 10:38:48,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-17 10:38:48,644 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:38:48,644 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] [2025-03-17 10:38:48,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 10:38:48,645 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:38:48,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:38:48,645 INFO L85 PathProgramCache]: Analyzing trace with hash -826577293, now seen corresponding path program 1 times [2025-03-17 10:38:48,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:38:48,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577372320] [2025-03-17 10:38:48,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:38:48,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:38:48,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-17 10:38:48,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-17 10:38:48,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:38:48,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:38:48,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:38:48,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:38:48,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577372320] [2025-03-17 10:38:48,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577372320] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:38:48,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:38:48,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 10:38:48,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712218146] [2025-03-17 10:38:48,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:38:48,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 10:38:48,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:38:48,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 10:38:48,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 10:38:48,945 INFO L87 Difference]: Start difference. First operand 460 states and 656 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, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:49,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:38:49,105 INFO L93 Difference]: Finished difference Result 920 states and 1312 transitions. [2025-03-17 10:38:49,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 10:38:49,106 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, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2025-03-17 10:38:49,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:38:49,109 INFO L225 Difference]: With dead ends: 920 [2025-03-17 10:38:49,109 INFO L226 Difference]: Without dead ends: 463 [2025-03-17 10:38:49,110 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 [2025-03-17 10:38:49,111 INFO L435 NwaCegarLoop]: 584 mSDtfsCounter, 105 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 10:38:49,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1668 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 10:38:49,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2025-03-17 10:38:49,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 460. [2025-03-17 10:38:49,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 437 states have (on average 1.4164759725400458) internal successors, (619), 441 states have internal predecessors, (619), 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) [2025-03-17 10:38:49,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 649 transitions. [2025-03-17 10:38:49,134 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 649 transitions. Word has length 63 [2025-03-17 10:38:49,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:38:49,134 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 649 transitions. [2025-03-17 10:38:49,134 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, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:49,134 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 649 transitions. [2025-03-17 10:38:49,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-17 10:38:49,136 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:38:49,137 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] [2025-03-17 10:38:49,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 10:38:49,137 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:38:49,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:38:49,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1098398099, now seen corresponding path program 1 times [2025-03-17 10:38:49,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:38:49,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035844193] [2025-03-17 10:38:49,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:38:49,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:38:49,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-17 10:38:49,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-17 10:38:49,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:38:49,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:38:49,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:38:49,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:38:49,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035844193] [2025-03-17 10:38:49,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035844193] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:38:49,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:38:49,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 10:38:49,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034813209] [2025-03-17 10:38:49,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:38:49,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:38:49,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:38:49,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:38:49,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:38:49,569 INFO L87 Difference]: Start difference. First operand 460 states and 649 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:50,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:38:50,122 INFO L93 Difference]: Finished difference Result 951 states and 1340 transitions. [2025-03-17 10:38:50,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:38:50,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2025-03-17 10:38:50,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:38:50,125 INFO L225 Difference]: With dead ends: 951 [2025-03-17 10:38:50,125 INFO L226 Difference]: Without dead ends: 494 [2025-03-17 10:38:50,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 10:38:50,127 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 14 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2475 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 10:38:50,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2475 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 10:38:50,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2025-03-17 10:38:50,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 487. [2025-03-17 10:38:50,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 464 states have (on average 1.4051724137931034) internal successors, (652), 468 states have internal predecessors, (652), 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) [2025-03-17 10:38:50,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 682 transitions. [2025-03-17 10:38:50,142 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 682 transitions. Word has length 63 [2025-03-17 10:38:50,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:38:50,142 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 682 transitions. [2025-03-17 10:38:50,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:50,143 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 682 transitions. [2025-03-17 10:38:50,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-17 10:38:50,146 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:38:50,146 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] [2025-03-17 10:38:50,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 10:38:50,146 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:38:50,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:38:50,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1347471732, now seen corresponding path program 1 times [2025-03-17 10:38:50,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:38:50,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076554268] [2025-03-17 10:38:50,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:38:50,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:38:50,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-17 10:38:50,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-17 10:38:50,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:38:50,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:38:50,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:38:50,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:38:50,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076554268] [2025-03-17 10:38:50,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076554268] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:38:50,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:38:50,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 10:38:50,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880648523] [2025-03-17 10:38:50,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:38:50,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 10:38:50,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:38:50,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 10:38:50,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 10:38:50,401 INFO L87 Difference]: Start difference. First operand 487 states and 682 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:50,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:38:50,946 INFO L93 Difference]: Finished difference Result 984 states and 1382 transitions. [2025-03-17 10:38:50,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 10:38:50,948 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2025-03-17 10:38:50,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:38:50,951 INFO L225 Difference]: With dead ends: 984 [2025-03-17 10:38:50,952 INFO L226 Difference]: Without dead ends: 500 [2025-03-17 10:38:50,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 10:38:50,955 INFO L435 NwaCegarLoop]: 585 mSDtfsCounter, 15 mSDsluCounter, 2388 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2973 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 10:38:50,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2973 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 10:38:50,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2025-03-17 10:38:50,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 497. [2025-03-17 10:38:50,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 474 states have (on average 1.4071729957805907) internal successors, (667), 478 states have internal predecessors, (667), 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) [2025-03-17 10:38:50,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 697 transitions. [2025-03-17 10:38:50,975 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 697 transitions. Word has length 64 [2025-03-17 10:38:50,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:38:50,977 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 697 transitions. [2025-03-17 10:38:50,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:50,977 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 697 transitions. [2025-03-17 10:38:50,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-17 10:38:50,978 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:38:50,978 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] [2025-03-17 10:38:50,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 10:38:50,978 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:38:50,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:38:50,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1781484869, now seen corresponding path program 1 times [2025-03-17 10:38:50,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:38:50,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095273895] [2025-03-17 10:38:50,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:38:50,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:38:51,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-17 10:38:51,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-17 10:38:51,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:38:51,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:38:51,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:38:51,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:38:51,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095273895] [2025-03-17 10:38:51,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095273895] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:38:51,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:38:51,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 10:38:51,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709931238] [2025-03-17 10:38:51,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:38:51,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 10:38:51,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:38:51,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 10:38:51,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 10:38:51,199 INFO L87 Difference]: Start difference. First operand 497 states and 697 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:51,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:38:51,422 INFO L93 Difference]: Finished difference Result 994 states and 1395 transitions. [2025-03-17 10:38:51,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 10:38:51,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2025-03-17 10:38:51,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:38:51,424 INFO L225 Difference]: With dead ends: 994 [2025-03-17 10:38:51,424 INFO L226 Difference]: Without dead ends: 500 [2025-03-17 10:38:51,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 10:38:51,427 INFO L435 NwaCegarLoop]: 595 mSDtfsCounter, 17 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 10:38:51,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1621 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 10:38:51,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2025-03-17 10:38:51,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 497. [2025-03-17 10:38:51,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 474 states have (on average 1.4050632911392404) internal successors, (666), 478 states have internal predecessors, (666), 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) [2025-03-17 10:38:51,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 696 transitions. [2025-03-17 10:38:51,445 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 696 transitions. Word has length 64 [2025-03-17 10:38:51,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:38:51,446 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 696 transitions. [2025-03-17 10:38:51,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:51,446 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 696 transitions. [2025-03-17 10:38:51,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-17 10:38:51,447 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:38:51,447 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] [2025-03-17 10:38:51,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 10:38:51,447 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:38:51,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:38:51,447 INFO L85 PathProgramCache]: Analyzing trace with hash -727885484, now seen corresponding path program 1 times [2025-03-17 10:38:51,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:38:51,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038440762] [2025-03-17 10:38:51,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:38:51,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:38:51,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-17 10:38:51,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-17 10:38:51,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:38:51,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:38:51,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:38:51,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:38:51,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038440762] [2025-03-17 10:38:51,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038440762] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:38:51,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:38:51,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 10:38:51,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714765570] [2025-03-17 10:38:51,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:38:51,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 10:38:51,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:38:51,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 10:38:51,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-17 10:38:51,770 INFO L87 Difference]: Start difference. First operand 497 states and 696 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:52,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:38:52,509 INFO L93 Difference]: Finished difference Result 1007 states and 1414 transitions. [2025-03-17 10:38:52,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 10:38:52,510 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2025-03-17 10:38:52,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:38:52,512 INFO L225 Difference]: With dead ends: 1007 [2025-03-17 10:38:52,512 INFO L226 Difference]: Without dead ends: 513 [2025-03-17 10:38:52,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-03-17 10:38:52,514 INFO L435 NwaCegarLoop]: 587 mSDtfsCounter, 33 mSDsluCounter, 3451 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 4038 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 10:38:52,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 4038 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 10:38:52,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2025-03-17 10:38:52,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 507. [2025-03-17 10:38:52,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 484 states have (on average 1.4049586776859504) internal successors, (680), 488 states have internal predecessors, (680), 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) [2025-03-17 10:38:52,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 710 transitions. [2025-03-17 10:38:52,531 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 710 transitions. Word has length 65 [2025-03-17 10:38:52,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:38:52,531 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 710 transitions. [2025-03-17 10:38:52,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:52,532 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 710 transitions. [2025-03-17 10:38:52,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-17 10:38:52,532 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:38:52,532 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] [2025-03-17 10:38:52,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 10:38:52,533 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:38:52,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:38:52,534 INFO L85 PathProgramCache]: Analyzing trace with hash 191649680, now seen corresponding path program 1 times [2025-03-17 10:38:52,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:38:52,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257419923] [2025-03-17 10:38:52,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:38:52,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:38:52,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-17 10:38:52,596 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-17 10:38:52,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:38:52,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:38:52,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:38:52,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:38:52,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257419923] [2025-03-17 10:38:52,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257419923] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:38:52,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:38:52,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 10:38:52,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885234289] [2025-03-17 10:38:52,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:38:52,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 10:38:52,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:38:52,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 10:38:52,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-17 10:38:52,887 INFO L87 Difference]: Start difference. First operand 507 states and 710 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:53,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:38:53,537 INFO L93 Difference]: Finished difference Result 1017 states and 1426 transitions. [2025-03-17 10:38:53,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 10:38:53,538 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2025-03-17 10:38:53,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:38:53,540 INFO L225 Difference]: With dead ends: 1017 [2025-03-17 10:38:53,540 INFO L226 Difference]: Without dead ends: 513 [2025-03-17 10:38:53,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2025-03-17 10:38:53,541 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 27 mSDsluCounter, 2952 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-17 10:38:53,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3542 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-17 10:38:53,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2025-03-17 10:38:53,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 510. [2025-03-17 10:38:53,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 487 states have (on average 1.4024640657084189) internal successors, (683), 491 states have internal predecessors, (683), 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) [2025-03-17 10:38:53,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 713 transitions. [2025-03-17 10:38:53,552 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 713 transitions. Word has length 65 [2025-03-17 10:38:53,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:38:53,553 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 713 transitions. [2025-03-17 10:38:53,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:53,553 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 713 transitions. [2025-03-17 10:38:53,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-17 10:38:53,554 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:38:53,554 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] [2025-03-17 10:38:53,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 10:38:53,554 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:38:53,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:38:53,555 INFO L85 PathProgramCache]: Analyzing trace with hash 939583984, now seen corresponding path program 1 times [2025-03-17 10:38:53,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:38:53,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837895521] [2025-03-17 10:38:53,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:38:53,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:38:53,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-17 10:38:53,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-17 10:38:53,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:38:53,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:38:53,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:38:53,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:38:53,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837895521] [2025-03-17 10:38:53,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837895521] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:38:53,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:38:53,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 10:38:53,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965443220] [2025-03-17 10:38:53,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:38:53,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:38:53,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:38:53,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:38:53,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:38:53,733 INFO L87 Difference]: Start difference. First operand 510 states and 713 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:54,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:38:54,067 INFO L93 Difference]: Finished difference Result 1020 states and 1428 transitions. [2025-03-17 10:38:54,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:38:54,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2025-03-17 10:38:54,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:38:54,070 INFO L225 Difference]: With dead ends: 1020 [2025-03-17 10:38:54,070 INFO L226 Difference]: Without dead ends: 513 [2025-03-17 10:38:54,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:38:54,071 INFO L435 NwaCegarLoop]: 595 mSDtfsCounter, 8 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 10:38:54,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2054 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 10:38:54,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2025-03-17 10:38:54,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 513. [2025-03-17 10:38:54,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 490 states have (on average 1.4) internal successors, (686), 494 states have internal predecessors, (686), 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) [2025-03-17 10:38:54,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 716 transitions. [2025-03-17 10:38:54,083 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 716 transitions. Word has length 65 [2025-03-17 10:38:54,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:38:54,083 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 716 transitions. [2025-03-17 10:38:54,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:54,083 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 716 transitions. [2025-03-17 10:38:54,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-17 10:38:54,084 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:38:54,084 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] [2025-03-17 10:38:54,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 10:38:54,084 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:38:54,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:38:54,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1226594146, now seen corresponding path program 1 times [2025-03-17 10:38:54,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:38:54,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746583750] [2025-03-17 10:38:54,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:38:54,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:38:54,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-17 10:38:54,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-17 10:38:54,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:38:54,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:38:54,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:38:54,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:38:54,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746583750] [2025-03-17 10:38:54,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746583750] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:38:54,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:38:54,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 10:38:54,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734319857] [2025-03-17 10:38:54,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:38:54,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 10:38:54,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:38:54,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 10:38:54,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 10:38:54,514 INFO L87 Difference]: Start difference. First operand 513 states and 716 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:55,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:38:55,480 INFO L93 Difference]: Finished difference Result 1512 states and 2123 transitions. [2025-03-17 10:38:55,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 10:38:55,481 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2025-03-17 10:38:55,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:38:55,485 INFO L225 Difference]: With dead ends: 1512 [2025-03-17 10:38:55,485 INFO L226 Difference]: Without dead ends: 1002 [2025-03-17 10:38:55,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2025-03-17 10:38:55,486 INFO L435 NwaCegarLoop]: 637 mSDtfsCounter, 903 mSDsluCounter, 2648 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 3285 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-17 10:38:55,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 3285 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-17 10:38:55,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2025-03-17 10:38:55,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 543. [2025-03-17 10:38:55,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 520 states have (on average 1.3865384615384615) internal successors, (721), 524 states have internal predecessors, (721), 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) [2025-03-17 10:38:55,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 751 transitions. [2025-03-17 10:38:55,504 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 751 transitions. Word has length 66 [2025-03-17 10:38:55,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:38:55,505 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 751 transitions. [2025-03-17 10:38:55,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:55,505 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 751 transitions. [2025-03-17 10:38:55,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-17 10:38:55,505 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:38:55,506 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] [2025-03-17 10:38:55,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 10:38:55,506 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:38:55,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:38:55,506 INFO L85 PathProgramCache]: Analyzing trace with hash 2127011312, now seen corresponding path program 1 times [2025-03-17 10:38:55,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:38:55,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152215479] [2025-03-17 10:38:55,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:38:55,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:38:55,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-17 10:38:55,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-17 10:38:55,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:38:55,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:38:55,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:38:55,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:38:55,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152215479] [2025-03-17 10:38:55,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152215479] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:38:55,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:38:55,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 10:38:55,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181132663] [2025-03-17 10:38:55,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:38:55,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 10:38:55,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:38:55,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 10:38:55,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 10:38:55,691 INFO L87 Difference]: Start difference. First operand 543 states and 751 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:56,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:38:56,210 INFO L93 Difference]: Finished difference Result 1060 states and 1475 transitions. [2025-03-17 10:38:56,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 10:38:56,210 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2025-03-17 10:38:56,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:38:56,213 INFO L225 Difference]: With dead ends: 1060 [2025-03-17 10:38:56,213 INFO L226 Difference]: Without dead ends: 550 [2025-03-17 10:38:56,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-17 10:38:56,214 INFO L435 NwaCegarLoop]: 592 mSDtfsCounter, 12 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2981 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 10:38:56,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2981 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 10:38:56,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2025-03-17 10:38:56,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 543. [2025-03-17 10:38:56,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 520 states have (on average 1.3865384615384615) internal successors, (721), 524 states have internal predecessors, (721), 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) [2025-03-17 10:38:56,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 751 transitions. [2025-03-17 10:38:56,230 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 751 transitions. Word has length 66 [2025-03-17 10:38:56,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:38:56,230 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 751 transitions. [2025-03-17 10:38:56,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 751 transitions. [2025-03-17 10:38:56,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-17 10:38:56,231 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:38:56,231 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] [2025-03-17 10:38:56,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 10:38:56,231 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:38:56,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:38:56,232 INFO L85 PathProgramCache]: Analyzing trace with hash -732190697, now seen corresponding path program 1 times [2025-03-17 10:38:56,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:38:56,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365017467] [2025-03-17 10:38:56,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:38:56,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:38:56,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 10:38:56,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 10:38:56,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:38:56,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:38:56,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:38:56,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:38:56,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365017467] [2025-03-17 10:38:56,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365017467] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:38:56,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:38:56,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 10:38:56,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134508794] [2025-03-17 10:38:56,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:38:56,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 10:38:56,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:38:56,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 10:38:56,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 10:38:56,449 INFO L87 Difference]: Start difference. First operand 543 states and 751 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:56,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:38:56,956 INFO L93 Difference]: Finished difference Result 1066 states and 1482 transitions. [2025-03-17 10:38:56,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 10:38:56,956 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2025-03-17 10:38:56,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:38:56,959 INFO L225 Difference]: With dead ends: 1066 [2025-03-17 10:38:56,959 INFO L226 Difference]: Without dead ends: 556 [2025-03-17 10:38:56,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 10:38:56,961 INFO L435 NwaCegarLoop]: 587 mSDtfsCounter, 20 mSDsluCounter, 2975 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 3562 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 10:38:56,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 3562 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 10:38:56,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2025-03-17 10:38:56,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 546. [2025-03-17 10:38:56,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 523 states have (on average 1.3862332695984703) internal successors, (725), 527 states have internal predecessors, (725), 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) [2025-03-17 10:38:56,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 755 transitions. [2025-03-17 10:38:56,976 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 755 transitions. Word has length 67 [2025-03-17 10:38:56,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:38:56,976 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 755 transitions. [2025-03-17 10:38:56,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:56,976 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 755 transitions. [2025-03-17 10:38:56,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-17 10:38:56,978 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:38:56,978 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] [2025-03-17 10:38:56,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 10:38:56,978 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:38:56,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:38:56,979 INFO L85 PathProgramCache]: Analyzing trace with hash -393093520, now seen corresponding path program 1 times [2025-03-17 10:38:56,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:38:56,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286455655] [2025-03-17 10:38:56,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:38:56,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:38:56,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 10:38:57,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 10:38:57,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:38:57,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:38:57,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:38:57,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:38:57,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286455655] [2025-03-17 10:38:57,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286455655] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:38:57,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:38:57,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 10:38:57,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563231999] [2025-03-17 10:38:57,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:38:57,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 10:38:57,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:38:57,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 10:38:57,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-17 10:38:57,204 INFO L87 Difference]: Start difference. First operand 546 states and 755 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:57,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:38:57,898 INFO L93 Difference]: Finished difference Result 1087 states and 1511 transitions. [2025-03-17 10:38:57,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 10:38:57,898 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2025-03-17 10:38:57,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:38:57,901 INFO L225 Difference]: With dead ends: 1087 [2025-03-17 10:38:57,901 INFO L226 Difference]: Without dead ends: 574 [2025-03-17 10:38:57,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-03-17 10:38:57,903 INFO L435 NwaCegarLoop]: 598 mSDtfsCounter, 37 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 3970 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 10:38:57,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 3970 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 10:38:57,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2025-03-17 10:38:57,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 546. [2025-03-17 10:38:57,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 523 states have (on average 1.3862332695984703) internal successors, (725), 527 states have internal predecessors, (725), 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) [2025-03-17 10:38:57,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 755 transitions. [2025-03-17 10:38:57,918 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 755 transitions. Word has length 67 [2025-03-17 10:38:57,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:38:57,918 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 755 transitions. [2025-03-17 10:38:57,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:57,918 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 755 transitions. [2025-03-17 10:38:57,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-17 10:38:57,920 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:38:57,920 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] [2025-03-17 10:38:57,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 10:38:57,921 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:38:57,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:38:57,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1082343952, now seen corresponding path program 1 times [2025-03-17 10:38:57,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:38:57,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280949873] [2025-03-17 10:38:57,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:38:57,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:38:57,938 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-17 10:38:57,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-17 10:38:57,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:38:57,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:38:58,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:38:58,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:38:58,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280949873] [2025-03-17 10:38:58,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280949873] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:38:58,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:38:58,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 10:38:58,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426184260] [2025-03-17 10:38:58,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:38:58,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 10:38:58,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:38:58,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 10:38:58,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-03-17 10:38:58,175 INFO L87 Difference]: Start difference. First operand 546 states and 755 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:58,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:38:58,764 INFO L93 Difference]: Finished difference Result 1075 states and 1495 transitions. [2025-03-17 10:38:58,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 10:38:58,765 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2025-03-17 10:38:58,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:38:58,767 INFO L225 Difference]: With dead ends: 1075 [2025-03-17 10:38:58,767 INFO L226 Difference]: Without dead ends: 562 [2025-03-17 10:38:58,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-03-17 10:38:58,769 INFO L435 NwaCegarLoop]: 593 mSDtfsCounter, 23 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4022 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 10:38:58,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4022 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 10:38:58,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2025-03-17 10:38:58,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 556. [2025-03-17 10:38:58,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 533 states have (on average 1.3827392120075046) internal successors, (737), 537 states have internal predecessors, (737), 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) [2025-03-17 10:38:58,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 767 transitions. [2025-03-17 10:38:58,781 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 767 transitions. Word has length 68 [2025-03-17 10:38:58,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:38:58,781 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 767 transitions. [2025-03-17 10:38:58,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:58,781 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 767 transitions. [2025-03-17 10:38:58,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-17 10:38:58,782 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:38:58,782 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] [2025-03-17 10:38:58,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 10:38:58,782 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:38:58,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:38:58,782 INFO L85 PathProgramCache]: Analyzing trace with hash -2075829225, now seen corresponding path program 1 times [2025-03-17 10:38:58,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:38:58,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953170480] [2025-03-17 10:38:58,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:38:58,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:38:58,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-17 10:38:58,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-17 10:38:58,823 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:38:58,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:38:58,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:38:58,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:38:58,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953170480] [2025-03-17 10:38:58,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953170480] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:38:58,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:38:58,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 10:38:58,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793720605] [2025-03-17 10:38:58,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:38:58,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 10:38:58,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:38:58,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 10:38:58,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 10:38:58,993 INFO L87 Difference]: Start difference. First operand 556 states and 767 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:59,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:38:59,495 INFO L93 Difference]: Finished difference Result 1084 states and 1502 transitions. [2025-03-17 10:38:59,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 10:38:59,495 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2025-03-17 10:38:59,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:38:59,498 INFO L225 Difference]: With dead ends: 1084 [2025-03-17 10:38:59,498 INFO L226 Difference]: Without dead ends: 561 [2025-03-17 10:38:59,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 10:38:59,500 INFO L435 NwaCegarLoop]: 588 mSDtfsCounter, 11 mSDsluCounter, 2423 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3011 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 10:38:59,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3011 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 10:38:59,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2025-03-17 10:38:59,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 556. [2025-03-17 10:38:59,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 533 states have (on average 1.3808630393996248) internal successors, (736), 537 states have internal predecessors, (736), 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) [2025-03-17 10:38:59,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 766 transitions. [2025-03-17 10:38:59,518 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 766 transitions. Word has length 68 [2025-03-17 10:38:59,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:38:59,518 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 766 transitions. [2025-03-17 10:38:59,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:38:59,518 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 766 transitions. [2025-03-17 10:38:59,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-17 10:38:59,519 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:38:59,519 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] [2025-03-17 10:38:59,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 10:38:59,519 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:38:59,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:38:59,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1156294061, now seen corresponding path program 1 times [2025-03-17 10:38:59,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:38:59,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268860150] [2025-03-17 10:38:59,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:38:59,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:38:59,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-17 10:38:59,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-17 10:38:59,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:38:59,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:38:59,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:38:59,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:38:59,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268860150] [2025-03-17 10:38:59,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268860150] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:38:59,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:38:59,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 10:38:59,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542763140] [2025-03-17 10:38:59,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:38:59,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 10:38:59,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:38:59,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 10:38:59,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 10:38:59,709 INFO L87 Difference]: Start difference. First operand 556 states and 766 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:39:00,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:39:00,220 INFO L93 Difference]: Finished difference Result 1084 states and 1502 transitions. [2025-03-17 10:39:00,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 10:39:00,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2025-03-17 10:39:00,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:39:00,223 INFO L225 Difference]: With dead ends: 1084 [2025-03-17 10:39:00,224 INFO L226 Difference]: Without dead ends: 561 [2025-03-17 10:39:00,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 10:39:00,225 INFO L435 NwaCegarLoop]: 591 mSDtfsCounter, 8 mSDsluCounter, 2356 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2947 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 10:39:00,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2947 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 10:39:00,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2025-03-17 10:39:00,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 560. [2025-03-17 10:39:00,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 537 states have (on average 1.3798882681564246) internal successors, (741), 541 states have internal predecessors, (741), 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) [2025-03-17 10:39:00,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 771 transitions. [2025-03-17 10:39:00,240 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 771 transitions. Word has length 68 [2025-03-17 10:39:00,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:39:00,241 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 771 transitions. [2025-03-17 10:39:00,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:39:00,241 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 771 transitions. [2025-03-17 10:39:00,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-17 10:39:00,242 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:39:00,242 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] [2025-03-17 10:39:00,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-17 10:39:00,242 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:39:00,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:39:00,243 INFO L85 PathProgramCache]: Analyzing trace with hash 839733943, now seen corresponding path program 1 times [2025-03-17 10:39:00,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:39:00,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669332633] [2025-03-17 10:39:00,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:39:00,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:39:00,261 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-17 10:39:00,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-17 10:39:00,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:39:00,277 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:39:00,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:39:00,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:39:00,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669332633] [2025-03-17 10:39:00,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669332633] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:39:00,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:39:00,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 10:39:00,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237319042] [2025-03-17 10:39:00,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:39:00,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 10:39:00,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:39:00,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 10:39:00,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-17 10:39:00,464 INFO L87 Difference]: Start difference. First operand 560 states and 771 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:39:01,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:39:01,143 INFO L93 Difference]: Finished difference Result 1104 states and 1528 transitions. [2025-03-17 10:39:01,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 10:39:01,143 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2025-03-17 10:39:01,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:39:01,146 INFO L225 Difference]: With dead ends: 1104 [2025-03-17 10:39:01,146 INFO L226 Difference]: Without dead ends: 577 [2025-03-17 10:39:01,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-17 10:39:01,148 INFO L435 NwaCegarLoop]: 581 mSDtfsCounter, 17 mSDsluCounter, 3868 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4449 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 10:39:01,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4449 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 10:39:01,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2025-03-17 10:39:01,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 563. [2025-03-17 10:39:01,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 540 states have (on average 1.3796296296296295) internal successors, (745), 544 states have internal predecessors, (745), 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) [2025-03-17 10:39:01,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 775 transitions. [2025-03-17 10:39:01,161 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 775 transitions. Word has length 68 [2025-03-17 10:39:01,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:39:01,162 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 775 transitions. [2025-03-17 10:39:01,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:39:01,162 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 775 transitions. [2025-03-17 10:39:01,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-17 10:39:01,162 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:39:01,162 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] [2025-03-17 10:39:01,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-17 10:39:01,164 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:39:01,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:39:01,165 INFO L85 PathProgramCache]: Analyzing trace with hash 807210512, now seen corresponding path program 1 times [2025-03-17 10:39:01,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:39:01,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40530123] [2025-03-17 10:39:01,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:39:01,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:39:01,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-17 10:39:01,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-17 10:39:01,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:39:01,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:39:01,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:39:01,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:39:01,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40530123] [2025-03-17 10:39:01,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40530123] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:39:01,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:39:01,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 10:39:01,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972978467] [2025-03-17 10:39:01,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:39:01,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 10:39:01,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:39:01,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 10:39:01,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-03-17 10:39:01,455 INFO L87 Difference]: Start difference. First operand 563 states and 775 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:39:02,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:39:02,092 INFO L93 Difference]: Finished difference Result 1105 states and 1530 transitions. [2025-03-17 10:39:02,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 10:39:02,093 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2025-03-17 10:39:02,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:39:02,095 INFO L225 Difference]: With dead ends: 1105 [2025-03-17 10:39:02,095 INFO L226 Difference]: Without dead ends: 575 [2025-03-17 10:39:02,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-03-17 10:39:02,096 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 13 mSDsluCounter, 3368 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3958 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-17 10:39:02,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3958 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-17 10:39:02,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2025-03-17 10:39:02,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 567. [2025-03-17 10:39:02,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 544 states have (on average 1.3786764705882353) internal successors, (750), 548 states have internal predecessors, (750), 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) [2025-03-17 10:39:02,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 780 transitions. [2025-03-17 10:39:02,108 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 780 transitions. Word has length 69 [2025-03-17 10:39:02,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:39:02,108 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 780 transitions. [2025-03-17 10:39:02,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:39:02,108 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 780 transitions. [2025-03-17 10:39:02,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-17 10:39:02,109 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:39:02,109 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] [2025-03-17 10:39:02,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-17 10:39:02,109 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:39:02,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:39:02,110 INFO L85 PathProgramCache]: Analyzing trace with hash 903655021, now seen corresponding path program 1 times [2025-03-17 10:39:02,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:39:02,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229155419] [2025-03-17 10:39:02,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:39:02,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:39:02,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-17 10:39:02,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-17 10:39:02,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:39:02,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:39:02,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:39:02,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:39:02,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229155419] [2025-03-17 10:39:02,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229155419] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:39:02,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:39:02,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 10:39:02,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584395903] [2025-03-17 10:39:02,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:39:02,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 10:39:02,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:39:02,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 10:39:02,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-17 10:39:02,276 INFO L87 Difference]: Start difference. First operand 567 states and 780 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:39:02,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 10:39:02,920 INFO L93 Difference]: Finished difference Result 1127 states and 1558 transitions. [2025-03-17 10:39:02,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 10:39:02,921 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2025-03-17 10:39:02,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 10:39:02,923 INFO L225 Difference]: With dead ends: 1127 [2025-03-17 10:39:02,923 INFO L226 Difference]: Without dead ends: 593 [2025-03-17 10:39:02,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-03-17 10:39:02,924 INFO L435 NwaCegarLoop]: 598 mSDtfsCounter, 33 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 3970 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-17 10:39:02,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 3970 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-17 10:39:02,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2025-03-17 10:39:02,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 564. [2025-03-17 10:39:02,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 541 states have (on average 1.3807763401109057) internal successors, (747), 545 states have internal predecessors, (747), 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) [2025-03-17 10:39:02,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 777 transitions. [2025-03-17 10:39:02,948 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 777 transitions. Word has length 69 [2025-03-17 10:39:02,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 10:39:02,948 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 777 transitions. [2025-03-17 10:39:02,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:39:02,948 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 777 transitions. [2025-03-17 10:39:02,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-17 10:39:02,949 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 10:39:02,949 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] [2025-03-17 10:39:02,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-17 10:39:02,949 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-17 10:39:02,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:39:02,949 INFO L85 PathProgramCache]: Analyzing trace with hash -63177157, now seen corresponding path program 1 times [2025-03-17 10:39:02,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:39:02,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851441244] [2025-03-17 10:39:02,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:39:02,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:39:02,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-17 10:39:02,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-17 10:39:02,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:39:02,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:39:19,693 WARN L286 SmtUtils]: Spent 5.19s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-17 10:39:23,703 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (* (div |c_ULTIMATE.start_main_~_hj_j~0#1| 4294967296) 524288)) (.cse0 (div |c_ULTIMATE.start_main_~_hj_j~0#1| 8192))) (and (= .cse0 (+ .cse1 |c_ULTIMATE.start_main_~_ha_hashv~0#1|)) (<= 4408680405129836981 (+ (* 1030789530 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) (* |c_ULTIMATE.start_main_~_hj_j~0#1| 2061579059) (* (div (+ (* (- 4123158118) |c_ULTIMATE.start_main_~_hj_j~0#1|) 8817360810260198248 .cse1 (* (- 2061579059) |c_ULTIMATE.start_main_~_ha_hashv~0#1|) (* (- 1) .cse0)) 4294967296) 2147483648))))) is different from false [2025-03-17 10:39:23,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:39:23,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:39:23,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851441244] [2025-03-17 10:39:23,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851441244] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:39:23,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:39:23,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-17 10:39:23,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170264173] [2025-03-17 10:39:23,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:39:23,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 10:39:23,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:39:23,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 10:39:23,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=72, Unknown=1, NotChecked=16, Total=110 [2025-03-17 10:39:23,751 INFO L87 Difference]: Start difference. First operand 564 states and 777 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 10:39:28,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-17 10:39:31,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-17 10:39:35,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-17 10:39:39,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-17 10:39:43,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-17 10:39:47,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-17 10:39:51,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-17 10:39:55,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-17 10:39:59,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-17 10:40:02,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-17 10:40:06,344 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (div |c_ULTIMATE.start_main_~_hj_j~0#1| 8192)) (.cse3 (* (div |c_ULTIMATE.start_main_~_hj_j~0#1| 4294967296) 524288))) (let ((.cse0 (+ .cse3 |c_ULTIMATE.start_main_~_ha_hashv~0#1|)) (.cse6 (* 1030789530 |c_ULTIMATE.start_main_~_ha_hashv~0#1|)) (.cse7 (* |c_ULTIMATE.start_main_~_hj_j~0#1| 2061579059)) (.cse2 (* (- 4123158118) |c_ULTIMATE.start_main_~_hj_j~0#1|)) (.cse4 (* (- 2061579059) |c_ULTIMATE.start_main_~_ha_hashv~0#1|)) (.cse5 (* (- 1) .cse1))) (and (or (< .cse0 (+ .cse1 (mod |c_ULTIMATE.start_main_~_hj_i~0#1| 4294967296))) (< 4408680405129836980 (+ (* 1030789529 |c_ULTIMATE.start_main_~_hj_i~0#1|) (* 2147483648 (div (+ .cse2 8817360810260198248 (* (- 2061579059) |c_ULTIMATE.start_main_~_hj_i~0#1|) .cse3 .cse4 .cse5) 4294967296)) .cse6 .cse7 (* (div |c_ULTIMATE.start_main_~_hj_i~0#1| 4294967296) 2147483648)))) (= .cse1 .cse0) (<= 4408680405129836981 (+ .cse6 .cse7 (* (div (+ .cse2 8817360810260198248 .cse3 .cse4 .cse5) 4294967296) 2147483648)))))) is different from false [2025-03-17 10:40:10,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-17 10:40:14,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-17 10:40:18,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []