./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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_test6-1.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 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:08:09,793 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:08:09,862 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 23:08:09,865 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:08:09,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:08:09,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:08:09,890 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:08:09,891 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:08:09,891 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 23:08:09,892 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 23:08:09,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:08:09,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:08:09,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:08:09,895 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:08:09,895 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:08:09,896 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:08:09,896 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:08:09,896 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:08:09,896 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:08:09,896 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:08:09,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:08:09,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:08:09,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:08:09,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:08:09,900 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:08:09,900 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:08:09,900 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:08:09,900 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:08:09,901 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:08:09,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:08:09,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 23:08:09,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:08:09,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:08:09,901 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:08:09,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:08:09,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:08:09,902 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:08:09,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:08:09,902 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:08:09,902 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:08:09,902 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:08:09,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:08:09,903 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 [2024-11-16 23:08:10,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:08:10,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:08:10,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:08:10,099 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:08:10,099 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:08:10,100 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2024-11-16 23:08:11,343 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:08:11,601 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:08:11,601 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2024-11-16 23:08:11,621 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59923e21f/d130a184f7904d5db1cbdad3fddf9891/FLAG55f4a5536 [2024-11-16 23:08:11,904 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59923e21f/d130a184f7904d5db1cbdad3fddf9891 [2024-11-16 23:08:11,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:08:11,907 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:08:11,907 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:08:11,908 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:08:11,912 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:08:11,912 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:08:11" (1/1) ... [2024-11-16 23:08:11,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@792f98a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:11, skipping insertion in model container [2024-11-16 23:08:11,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:08:11" (1/1) ... [2024-11-16 23:08:11,960 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:08:12,319 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_test6-1.i[44118,44131] [2024-11-16 23:08:12,328 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_test6-1.i[44660,44673] [2024-11-16 23:08:12,437 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_test6-1.i[56247,56260] [2024-11-16 23:08:12,437 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_test6-1.i[56368,56381] [2024-11-16 23:08:12,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:08:12,484 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:08:12,529 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_test6-1.i[44118,44131] [2024-11-16 23:08:12,531 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_test6-1.i[44660,44673] [2024-11-16 23:08:12,586 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_test6-1.i[56247,56260] [2024-11-16 23:08:12,587 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_test6-1.i[56368,56381] [2024-11-16 23:08:12,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:08:12,632 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:08:12,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:12 WrapperNode [2024-11-16 23:08:12,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:08:12,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:08:12,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:08:12,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:08:12,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:12" (1/1) ... [2024-11-16 23:08:12,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:12" (1/1) ... [2024-11-16 23:08:12,715 INFO L138 Inliner]: procedures = 282, calls = 296, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1442 [2024-11-16 23:08:12,715 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:08:12,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:08:12,716 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:08:12,716 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:08:12,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:12" (1/1) ... [2024-11-16 23:08:12,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:12" (1/1) ... [2024-11-16 23:08:12,734 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:12" (1/1) ... [2024-11-16 23:08:12,799 INFO L175 MemorySlicer]: Split 268 memory accesses to 4 slices as follows [2, 12, 34, 220]. 82 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 54 writes are split as follows [0, 1, 4, 49]. [2024-11-16 23:08:12,803 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:12" (1/1) ... [2024-11-16 23:08:12,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:12" (1/1) ... [2024-11-16 23:08:12,842 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:12" (1/1) ... [2024-11-16 23:08:12,846 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:12" (1/1) ... [2024-11-16 23:08:12,849 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:12" (1/1) ... [2024-11-16 23:08:12,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:12" (1/1) ... [2024-11-16 23:08:12,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:08:12,871 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:08:12,871 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:08:12,871 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:08:12,872 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:12" (1/1) ... [2024-11-16 23:08:12,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:08:12,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:08:12,903 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) [2024-11-16 23:08:12,908 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 [2024-11-16 23:08:12,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:08:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 23:08:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 23:08:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 23:08:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 23:08:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:08:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-16 23:08:12,943 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-16 23:08:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 23:08:12,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 23:08:12,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 23:08:12,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 23:08:12,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 23:08:12,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 23:08:12,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 23:08:12,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 23:08:12,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 23:08:12,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 23:08:12,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 23:08:12,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:08:12,946 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-16 23:08:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-16 23:08:12,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 23:08:12,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 23:08:12,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 23:08:12,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 23:08:12,946 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-16 23:08:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-16 23:08:12,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 23:08:12,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 23:08:12,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 23:08:12,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 23:08:12,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:08:12,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:08:13,112 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:08:13,113 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:08:13,156 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L955: havoc #t~malloc32.base, #t~malloc32.offset; [2024-11-16 23:08:14,065 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc alt_memcmp_#t~nondet36#1; [2024-11-16 23:08:14,065 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc real_malloc_#t~malloc39#1.base, real_malloc_#t~malloc39#1.offset; [2024-11-16 23:08:14,065 INFO L1250 $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; [2024-11-16 23:08:14,126 INFO L? ?]: Removed 333 outVars from TransFormulas that were not future-live. [2024-11-16 23:08:14,126 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:08:14,166 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:08:14,166 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-16 23:08:14,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:08:14 BoogieIcfgContainer [2024-11-16 23:08:14,167 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:08:14,168 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:08:14,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:08:14,172 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:08:14,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:08:11" (1/3) ... [2024-11-16 23:08:14,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c024dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:08:14, skipping insertion in model container [2024-11-16 23:08:14,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:12" (2/3) ... [2024-11-16 23:08:14,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c024dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:08:14, skipping insertion in model container [2024-11-16 23:08:14,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:08:14" (3/3) ... [2024-11-16 23:08:14,175 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-1.i [2024-11-16 23:08:14,187 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:08:14,187 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-16 23:08:14,298 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:08:14,304 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;@7630dcc9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:08:14,305 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-16 23:08:14,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 441 states, 418 states have (on average 1.5933014354066986) internal successors, (666), 423 states have internal predecessors, (666), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 23:08:14,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-16 23:08:14,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:14,316 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:08:14,316 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-16 23:08:14,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:14,320 INFO L85 PathProgramCache]: Analyzing trace with hash 559460501, now seen corresponding path program 1 times [2024-11-16 23:08:14,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:14,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819489123] [2024-11-16 23:08:14,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:14,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:14,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:14,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:14,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819489123] [2024-11-16 23:08:14,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819489123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:14,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:14,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:08:14,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320362113] [2024-11-16 23:08:14,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:14,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:08:14,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:14,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:08:14,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:08:14,501 INFO L87 Difference]: Start difference. First operand has 441 states, 418 states have (on average 1.5933014354066986) internal successors, (666), 423 states have internal predecessors, (666), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2024-11-16 23:08:14,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:14,618 INFO L93 Difference]: Finished difference Result 877 states and 1392 transitions. [2024-11-16 23:08:14,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:08:14,620 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 [2024-11-16 23:08:14,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:14,631 INFO L225 Difference]: With dead ends: 877 [2024-11-16 23:08:14,631 INFO L226 Difference]: Without dead ends: 434 [2024-11-16 23:08:14,636 INFO L431 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 [2024-11-16 23:08:14,640 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:14,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 577 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 23:08:14,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-16 23:08:14,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2024-11-16 23:08:14,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 413 states have (on average 1.4285714285714286) internal successors, (590), 418 states have internal predecessors, (590), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:14,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2024-11-16 23:08:14,691 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 9 [2024-11-16 23:08:14,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:14,692 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2024-11-16 23:08:14,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2024-11-16 23:08:14,692 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2024-11-16 23:08:14,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-16 23:08:14,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:14,692 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:08:14,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:08:14,693 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)] === [2024-11-16 23:08:14,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:14,693 INFO L85 PathProgramCache]: Analyzing trace with hash 308303057, now seen corresponding path program 1 times [2024-11-16 23:08:14,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:14,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729007433] [2024-11-16 23:08:14,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:14,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:14,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:14,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:14,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729007433] [2024-11-16 23:08:14,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729007433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:14,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:14,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:08:14,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920185933] [2024-11-16 23:08:14,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:14,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:08:14,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:14,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:08:14,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:08:14,851 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-16 23:08:15,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:15,094 INFO L93 Difference]: Finished difference Result 1056 states and 1507 transitions. [2024-11-16 23:08:15,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:08:15,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2024-11-16 23:08:15,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:15,098 INFO L225 Difference]: With dead ends: 1056 [2024-11-16 23:08:15,098 INFO L226 Difference]: Without dead ends: 841 [2024-11-16 23:08:15,099 INFO L431 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 [2024-11-16 23:08:15,101 INFO L432 NwaCegarLoop]: 599 mSDtfsCounter, 563 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:15,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 1738 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 23:08:15,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2024-11-16 23:08:15,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 436. [2024-11-16 23:08:15,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 415 states have (on average 1.4265060240963856) internal successors, (592), 420 states have internal predecessors, (592), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:15,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 617 transitions. [2024-11-16 23:08:15,132 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 617 transitions. Word has length 11 [2024-11-16 23:08:15,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:15,132 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 617 transitions. [2024-11-16 23:08:15,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-16 23:08:15,132 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 617 transitions. [2024-11-16 23:08:15,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 23:08:15,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:15,134 INFO L215 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] [2024-11-16 23:08:15,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:08:15,134 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)] === [2024-11-16 23:08:15,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:15,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1361826080, now seen corresponding path program 1 times [2024-11-16 23:08:15,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:15,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988907917] [2024-11-16 23:08:15,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:15,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:15,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:15,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:15,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988907917] [2024-11-16 23:08:15,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988907917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:15,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:15,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:08:15,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77936673] [2024-11-16 23:08:15,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:15,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:08:15,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:15,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:08:15,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:08:15,338 INFO L87 Difference]: Start difference. First operand 436 states and 617 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 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) [2024-11-16 23:08:15,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:15,471 INFO L93 Difference]: Finished difference Result 871 states and 1233 transitions. [2024-11-16 23:08:15,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:08:15,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 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 [2024-11-16 23:08:15,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:15,473 INFO L225 Difference]: With dead ends: 871 [2024-11-16 23:08:15,474 INFO L226 Difference]: Without dead ends: 439 [2024-11-16 23:08:15,475 INFO L431 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 [2024-11-16 23:08:15,476 INFO L432 NwaCegarLoop]: 545 mSDtfsCounter, 105 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:15,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1550 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 23:08:15,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-16 23:08:15,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 436. [2024-11-16 23:08:15,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 415 states have (on average 1.4096385542168675) internal successors, (585), 420 states have internal predecessors, (585), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:15,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 610 transitions. [2024-11-16 23:08:15,492 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 610 transitions. Word has length 68 [2024-11-16 23:08:15,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:15,492 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 610 transitions. [2024-11-16 23:08:15,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 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) [2024-11-16 23:08:15,493 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 610 transitions. [2024-11-16 23:08:15,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 23:08:15,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:15,495 INFO L215 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] [2024-11-16 23:08:15,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:08:15,495 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)] === [2024-11-16 23:08:15,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:15,496 INFO L85 PathProgramCache]: Analyzing trace with hash -894320410, now seen corresponding path program 1 times [2024-11-16 23:08:15,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:15,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677481496] [2024-11-16 23:08:15,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:15,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:15,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:15,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:15,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677481496] [2024-11-16 23:08:15,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677481496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:15,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:15,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 23:08:15,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114364963] [2024-11-16 23:08:15,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:15,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:08:15,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:15,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:08:15,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:08:15,879 INFO L87 Difference]: Start difference. First operand 436 states and 610 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 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) [2024-11-16 23:08:16,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:16,417 INFO L93 Difference]: Finished difference Result 904 states and 1263 transitions. [2024-11-16 23:08:16,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:08:16,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 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 [2024-11-16 23:08:16,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:16,420 INFO L225 Difference]: With dead ends: 904 [2024-11-16 23:08:16,421 INFO L226 Difference]: Without dead ends: 472 [2024-11-16 23:08:16,422 INFO L431 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 [2024-11-16 23:08:16,423 INFO L432 NwaCegarLoop]: 552 mSDtfsCounter, 14 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2285 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:16,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2285 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 23:08:16,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-16 23:08:16,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 465. [2024-11-16 23:08:16,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 444 states have (on average 1.3963963963963963) internal successors, (620), 449 states have internal predecessors, (620), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:16,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 645 transitions. [2024-11-16 23:08:16,439 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 645 transitions. Word has length 68 [2024-11-16 23:08:16,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:16,439 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 645 transitions. [2024-11-16 23:08:16,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 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) [2024-11-16 23:08:16,440 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 645 transitions. [2024-11-16 23:08:16,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 23:08:16,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:16,441 INFO L215 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] [2024-11-16 23:08:16,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:08:16,442 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)] === [2024-11-16 23:08:16,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:16,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1452463973, now seen corresponding path program 1 times [2024-11-16 23:08:16,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:16,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255837810] [2024-11-16 23:08:16,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:16,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:16,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:16,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:16,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255837810] [2024-11-16 23:08:16,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255837810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:16,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:16,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 23:08:16,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104014631] [2024-11-16 23:08:16,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:16,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 23:08:16,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:16,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 23:08:16,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 23:08:16,630 INFO L87 Difference]: Start difference. First operand 465 states and 645 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 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) [2024-11-16 23:08:17,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:17,118 INFO L93 Difference]: Finished difference Result 939 states and 1307 transitions. [2024-11-16 23:08:17,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 23:08:17,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 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 [2024-11-16 23:08:17,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:17,120 INFO L225 Difference]: With dead ends: 939 [2024-11-16 23:08:17,120 INFO L226 Difference]: Without dead ends: 478 [2024-11-16 23:08:17,121 INFO L431 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 [2024-11-16 23:08:17,122 INFO L432 NwaCegarLoop]: 547 mSDtfsCounter, 15 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2745 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:17,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2745 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 23:08:17,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-16 23:08:17,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 475. [2024-11-16 23:08:17,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 454 states have (on average 1.3986784140969164) internal successors, (635), 459 states have internal predecessors, (635), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:17,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 660 transitions. [2024-11-16 23:08:17,131 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 660 transitions. Word has length 69 [2024-11-16 23:08:17,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:17,131 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 660 transitions. [2024-11-16 23:08:17,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 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) [2024-11-16 23:08:17,131 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 660 transitions. [2024-11-16 23:08:17,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 23:08:17,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:17,136 INFO L215 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] [2024-11-16 23:08:17,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:08:17,136 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)] === [2024-11-16 23:08:17,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:17,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1055910146, now seen corresponding path program 1 times [2024-11-16 23:08:17,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:17,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677015011] [2024-11-16 23:08:17,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:17,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:17,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:17,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:17,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677015011] [2024-11-16 23:08:17,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677015011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:17,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:17,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:08:17,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685303629] [2024-11-16 23:08:17,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:17,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:08:17,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:17,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:08:17,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:08:17,362 INFO L87 Difference]: Start difference. First operand 475 states and 660 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 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) [2024-11-16 23:08:17,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:17,573 INFO L93 Difference]: Finished difference Result 949 states and 1320 transitions. [2024-11-16 23:08:17,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 23:08:17,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 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 [2024-11-16 23:08:17,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:17,576 INFO L225 Difference]: With dead ends: 949 [2024-11-16 23:08:17,576 INFO L226 Difference]: Without dead ends: 478 [2024-11-16 23:08:17,577 INFO L431 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 [2024-11-16 23:08:17,579 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 17 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:17,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1507 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 23:08:17,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-16 23:08:17,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 475. [2024-11-16 23:08:17,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 454 states have (on average 1.39647577092511) internal successors, (634), 459 states have internal predecessors, (634), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:17,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 659 transitions. [2024-11-16 23:08:17,591 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 659 transitions. Word has length 69 [2024-11-16 23:08:17,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:17,591 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 659 transitions. [2024-11-16 23:08:17,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 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) [2024-11-16 23:08:17,592 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 659 transitions. [2024-11-16 23:08:17,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 23:08:17,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:17,593 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:08:17,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:08:17,593 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)] === [2024-11-16 23:08:17,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:17,594 INFO L85 PathProgramCache]: Analyzing trace with hash -706148001, now seen corresponding path program 1 times [2024-11-16 23:08:17,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:17,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331140279] [2024-11-16 23:08:17,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:17,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:17,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:17,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:17,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331140279] [2024-11-16 23:08:17,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331140279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:17,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:17,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:08:17,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073723569] [2024-11-16 23:08:17,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:17,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:08:17,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:17,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:08:17,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:08:17,880 INFO L87 Difference]: Start difference. First operand 475 states and 659 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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) [2024-11-16 23:08:18,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:18,597 INFO L93 Difference]: Finished difference Result 962 states and 1339 transitions. [2024-11-16 23:08:18,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:08:18,598 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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 70 [2024-11-16 23:08:18,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:18,600 INFO L225 Difference]: With dead ends: 962 [2024-11-16 23:08:18,600 INFO L226 Difference]: Without dead ends: 491 [2024-11-16 23:08:18,601 INFO L431 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 [2024-11-16 23:08:18,603 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 35 mSDsluCounter, 3185 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3734 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:18,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3734 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 23:08:18,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-16 23:08:18,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 485. [2024-11-16 23:08:18,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 464 states have (on average 1.396551724137931) internal successors, (648), 469 states have internal predecessors, (648), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:18,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 673 transitions. [2024-11-16 23:08:18,614 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 673 transitions. Word has length 70 [2024-11-16 23:08:18,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:18,614 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 673 transitions. [2024-11-16 23:08:18,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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) [2024-11-16 23:08:18,615 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 673 transitions. [2024-11-16 23:08:18,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 23:08:18,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:18,616 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:08:18,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:08:18,616 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)] === [2024-11-16 23:08:18,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:18,616 INFO L85 PathProgramCache]: Analyzing trace with hash 2029638307, now seen corresponding path program 1 times [2024-11-16 23:08:18,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:18,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034224048] [2024-11-16 23:08:18,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:18,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:18,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:18,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:18,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034224048] [2024-11-16 23:08:18,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034224048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:18,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:18,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 23:08:18,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656816211] [2024-11-16 23:08:18,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:18,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 23:08:18,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:18,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 23:08:18,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 23:08:18,964 INFO L87 Difference]: Start difference. First operand 485 states and 673 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 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) [2024-11-16 23:08:19,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:19,458 INFO L93 Difference]: Finished difference Result 972 states and 1351 transitions. [2024-11-16 23:08:19,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 23:08:19,458 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 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 70 [2024-11-16 23:08:19,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:19,460 INFO L225 Difference]: With dead ends: 972 [2024-11-16 23:08:19,460 INFO L226 Difference]: Without dead ends: 491 [2024-11-16 23:08:19,461 INFO L431 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 [2024-11-16 23:08:19,462 INFO L432 NwaCegarLoop]: 552 mSDtfsCounter, 27 mSDsluCounter, 2291 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:19,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 2843 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 23:08:19,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-16 23:08:19,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 488. [2024-11-16 23:08:19,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 467 states have (on average 1.3940042826552463) internal successors, (651), 472 states have internal predecessors, (651), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:19,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 676 transitions. [2024-11-16 23:08:19,470 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 676 transitions. Word has length 70 [2024-11-16 23:08:19,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:19,470 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 676 transitions. [2024-11-16 23:08:19,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 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) [2024-11-16 23:08:19,471 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 676 transitions. [2024-11-16 23:08:19,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 23:08:19,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:19,472 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:08:19,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:08:19,472 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)] === [2024-11-16 23:08:19,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:19,472 INFO L85 PathProgramCache]: Analyzing trace with hash -554202045, now seen corresponding path program 1 times [2024-11-16 23:08:19,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:19,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062973109] [2024-11-16 23:08:19,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:19,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:19,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:19,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:19,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062973109] [2024-11-16 23:08:19,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062973109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:19,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:19,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 23:08:19,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350856972] [2024-11-16 23:08:19,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:19,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:08:19,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:19,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:08:19,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:08:19,672 INFO L87 Difference]: Start difference. First operand 488 states and 676 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2024-11-16 23:08:19,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:19,995 INFO L93 Difference]: Finished difference Result 975 states and 1353 transitions. [2024-11-16 23:08:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:08:19,996 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 70 [2024-11-16 23:08:19,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:19,998 INFO L225 Difference]: With dead ends: 975 [2024-11-16 23:08:19,998 INFO L226 Difference]: Without dead ends: 491 [2024-11-16 23:08:19,998 INFO L431 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 [2024-11-16 23:08:19,999 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 8 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1902 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:19,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1902 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 23:08:20,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-16 23:08:20,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2024-11-16 23:08:20,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 470 states have (on average 1.3914893617021276) internal successors, (654), 475 states have internal predecessors, (654), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:20,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 679 transitions. [2024-11-16 23:08:20,008 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 679 transitions. Word has length 70 [2024-11-16 23:08:20,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:20,009 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 679 transitions. [2024-11-16 23:08:20,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2024-11-16 23:08:20,009 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 679 transitions. [2024-11-16 23:08:20,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 23:08:20,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:20,010 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:08:20,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:08:20,010 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)] === [2024-11-16 23:08:20,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:20,010 INFO L85 PathProgramCache]: Analyzing trace with hash -8237786, now seen corresponding path program 1 times [2024-11-16 23:08:20,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:20,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785873807] [2024-11-16 23:08:20,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:20,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:20,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:20,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:20,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785873807] [2024-11-16 23:08:20,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785873807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:20,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:20,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:08:20,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878146693] [2024-11-16 23:08:20,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:20,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:08:20,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:20,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:08:20,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:08:20,425 INFO L87 Difference]: Start difference. First operand 491 states and 679 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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) [2024-11-16 23:08:21,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:21,274 INFO L93 Difference]: Finished difference Result 1443 states and 2009 transitions. [2024-11-16 23:08:21,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 23:08:21,274 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 71 [2024-11-16 23:08:21,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:21,277 INFO L225 Difference]: With dead ends: 1443 [2024-11-16 23:08:21,277 INFO L226 Difference]: Without dead ends: 956 [2024-11-16 23:08:21,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-16 23:08:21,279 INFO L432 NwaCegarLoop]: 541 mSDtfsCounter, 878 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:21,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 2826 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 23:08:21,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-11-16 23:08:21,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 524. [2024-11-16 23:08:21,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 503 states have (on average 1.3757455268389662) internal successors, (692), 508 states have internal predecessors, (692), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:21,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 717 transitions. [2024-11-16 23:08:21,290 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 717 transitions. Word has length 71 [2024-11-16 23:08:21,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:21,291 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 717 transitions. [2024-11-16 23:08:21,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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) [2024-11-16 23:08:21,291 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 717 transitions. [2024-11-16 23:08:21,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 23:08:21,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:21,292 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:08:21,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:08:21,292 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)] === [2024-11-16 23:08:21,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:21,293 INFO L85 PathProgramCache]: Analyzing trace with hash -894976300, now seen corresponding path program 1 times [2024-11-16 23:08:21,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:21,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717920384] [2024-11-16 23:08:21,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:21,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:21,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:21,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:21,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717920384] [2024-11-16 23:08:21,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717920384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:21,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:21,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 23:08:21,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330532390] [2024-11-16 23:08:21,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:21,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 23:08:21,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:21,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 23:08:21,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 23:08:21,483 INFO L87 Difference]: Start difference. First operand 524 states and 717 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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) [2024-11-16 23:08:21,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:21,961 INFO L93 Difference]: Finished difference Result 1018 states and 1403 transitions. [2024-11-16 23:08:21,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 23:08:21,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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 71 [2024-11-16 23:08:21,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:21,967 INFO L225 Difference]: With dead ends: 1018 [2024-11-16 23:08:21,967 INFO L226 Difference]: Without dead ends: 531 [2024-11-16 23:08:21,968 INFO L431 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 [2024-11-16 23:08:21,969 INFO L432 NwaCegarLoop]: 554 mSDtfsCounter, 14 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2753 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:21,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2753 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 23:08:21,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-16 23:08:21,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 524. [2024-11-16 23:08:21,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 503 states have (on average 1.3757455268389662) internal successors, (692), 508 states have internal predecessors, (692), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:21,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 717 transitions. [2024-11-16 23:08:21,979 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 717 transitions. Word has length 71 [2024-11-16 23:08:21,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:21,979 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 717 transitions. [2024-11-16 23:08:21,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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) [2024-11-16 23:08:21,979 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 717 transitions. [2024-11-16 23:08:21,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 23:08:21,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:21,980 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:08:21,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:08:21,980 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)] === [2024-11-16 23:08:21,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:21,981 INFO L85 PathProgramCache]: Analyzing trace with hash -269913732, now seen corresponding path program 1 times [2024-11-16 23:08:21,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:21,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765379487] [2024-11-16 23:08:21,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:21,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:22,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:22,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:22,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765379487] [2024-11-16 23:08:22,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765379487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:22,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:22,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:08:22,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15589302] [2024-11-16 23:08:22,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:22,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:08:22,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:22,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:08:22,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:08:22,146 INFO L87 Difference]: Start difference. First operand 524 states and 717 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 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) [2024-11-16 23:08:22,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:22,695 INFO L93 Difference]: Finished difference Result 1024 states and 1410 transitions. [2024-11-16 23:08:22,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:08:22,696 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 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 72 [2024-11-16 23:08:22,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:22,698 INFO L225 Difference]: With dead ends: 1024 [2024-11-16 23:08:22,698 INFO L226 Difference]: Without dead ends: 537 [2024-11-16 23:08:22,699 INFO L431 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 [2024-11-16 23:08:22,699 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 20 mSDsluCounter, 3187 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 3736 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:22,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 3736 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1134 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 23:08:22,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-16 23:08:22,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 527. [2024-11-16 23:08:22,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 506 states have (on average 1.3754940711462451) internal successors, (696), 511 states have internal predecessors, (696), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:22,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 721 transitions. [2024-11-16 23:08:22,726 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 721 transitions. Word has length 72 [2024-11-16 23:08:22,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:22,726 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 721 transitions. [2024-11-16 23:08:22,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 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) [2024-11-16 23:08:22,726 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 721 transitions. [2024-11-16 23:08:22,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 23:08:22,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:22,727 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:08:22,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 23:08:22,728 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)] === [2024-11-16 23:08:22,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:22,728 INFO L85 PathProgramCache]: Analyzing trace with hash -603899322, now seen corresponding path program 1 times [2024-11-16 23:08:22,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:22,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515448485] [2024-11-16 23:08:22,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:22,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:22,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:22,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:22,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515448485] [2024-11-16 23:08:22,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515448485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:22,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:22,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:08:22,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416893015] [2024-11-16 23:08:22,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:22,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:08:22,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:22,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:08:22,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:08:22,937 INFO L87 Difference]: Start difference. First operand 527 states and 721 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 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) [2024-11-16 23:08:23,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:23,560 INFO L93 Difference]: Finished difference Result 1045 states and 1439 transitions. [2024-11-16 23:08:23,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:08:23,561 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 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 72 [2024-11-16 23:08:23,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:23,563 INFO L225 Difference]: With dead ends: 1045 [2024-11-16 23:08:23,563 INFO L226 Difference]: Without dead ends: 555 [2024-11-16 23:08:23,566 INFO L431 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 [2024-11-16 23:08:23,566 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 39 mSDsluCounter, 3106 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3666 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:23,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3666 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 23:08:23,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-16 23:08:23,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 527. [2024-11-16 23:08:23,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 506 states have (on average 1.3754940711462451) internal successors, (696), 511 states have internal predecessors, (696), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:23,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 721 transitions. [2024-11-16 23:08:23,579 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 721 transitions. Word has length 72 [2024-11-16 23:08:23,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:23,579 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 721 transitions. [2024-11-16 23:08:23,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 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) [2024-11-16 23:08:23,579 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 721 transitions. [2024-11-16 23:08:23,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 23:08:23,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:23,580 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:08:23,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 23:08:23,580 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)] === [2024-11-16 23:08:23,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:23,581 INFO L85 PathProgramCache]: Analyzing trace with hash 615305399, now seen corresponding path program 1 times [2024-11-16 23:08:23,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:23,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723916742] [2024-11-16 23:08:23,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:23,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:23,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:23,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:23,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723916742] [2024-11-16 23:08:23,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723916742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:23,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:23,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 23:08:23,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862033614] [2024-11-16 23:08:23,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:23,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 23:08:23,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:23,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 23:08:23,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:08:23,848 INFO L87 Difference]: Start difference. First operand 527 states and 721 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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) [2024-11-16 23:08:24,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:24,390 INFO L93 Difference]: Finished difference Result 1033 states and 1423 transitions. [2024-11-16 23:08:24,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:08:24,391 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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 73 [2024-11-16 23:08:24,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:24,392 INFO L225 Difference]: With dead ends: 1033 [2024-11-16 23:08:24,393 INFO L226 Difference]: Without dead ends: 543 [2024-11-16 23:08:24,393 INFO L431 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 [2024-11-16 23:08:24,394 INFO L432 NwaCegarLoop]: 555 mSDtfsCounter, 26 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3276 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:24,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3276 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 23:08:24,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-11-16 23:08:24,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 537. [2024-11-16 23:08:24,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 516 states have (on average 1.372093023255814) internal successors, (708), 521 states have internal predecessors, (708), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:24,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 733 transitions. [2024-11-16 23:08:24,403 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 733 transitions. Word has length 73 [2024-11-16 23:08:24,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:24,404 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 733 transitions. [2024-11-16 23:08:24,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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) [2024-11-16 23:08:24,404 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 733 transitions. [2024-11-16 23:08:24,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 23:08:24,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:24,404 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:08:24,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 23:08:24,405 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)] === [2024-11-16 23:08:24,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:24,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1336458291, now seen corresponding path program 1 times [2024-11-16 23:08:24,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:24,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211052109] [2024-11-16 23:08:24,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:24,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:24,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:24,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:24,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211052109] [2024-11-16 23:08:24,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211052109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:24,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:24,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 23:08:24,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821055751] [2024-11-16 23:08:24,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:24,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 23:08:24,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:24,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 23:08:24,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 23:08:24,592 INFO L87 Difference]: Start difference. First operand 537 states and 733 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2024-11-16 23:08:25,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:25,039 INFO L93 Difference]: Finished difference Result 1042 states and 1430 transitions. [2024-11-16 23:08:25,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 23:08:25,040 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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 73 [2024-11-16 23:08:25,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:25,042 INFO L225 Difference]: With dead ends: 1042 [2024-11-16 23:08:25,042 INFO L226 Difference]: Without dead ends: 542 [2024-11-16 23:08:25,044 INFO L431 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 [2024-11-16 23:08:25,045 INFO L432 NwaCegarLoop]: 550 mSDtfsCounter, 11 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2783 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:25,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2783 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 23:08:25,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-16 23:08:25,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 537. [2024-11-16 23:08:25,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 516 states have (on average 1.37015503875969) internal successors, (707), 521 states have internal predecessors, (707), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:25,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 732 transitions. [2024-11-16 23:08:25,056 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 732 transitions. Word has length 73 [2024-11-16 23:08:25,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:25,056 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 732 transitions. [2024-11-16 23:08:25,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2024-11-16 23:08:25,057 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 732 transitions. [2024-11-16 23:08:25,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 23:08:25,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:25,057 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:08:25,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 23:08:25,058 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)] === [2024-11-16 23:08:25,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:25,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1399328017, now seen corresponding path program 1 times [2024-11-16 23:08:25,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:25,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634479087] [2024-11-16 23:08:25,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:25,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:25,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:25,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:25,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634479087] [2024-11-16 23:08:25,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634479087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:25,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:25,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 23:08:25,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473730869] [2024-11-16 23:08:25,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:25,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 23:08:25,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:25,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 23:08:25,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 23:08:25,213 INFO L87 Difference]: Start difference. First operand 537 states and 732 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2024-11-16 23:08:25,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:25,642 INFO L93 Difference]: Finished difference Result 1042 states and 1430 transitions. [2024-11-16 23:08:25,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 23:08:25,643 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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 73 [2024-11-16 23:08:25,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:25,645 INFO L225 Difference]: With dead ends: 1042 [2024-11-16 23:08:25,645 INFO L226 Difference]: Without dead ends: 542 [2024-11-16 23:08:25,645 INFO L431 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 [2024-11-16 23:08:25,646 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 8 mSDsluCounter, 2166 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2719 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:25,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2719 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 23:08:25,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-16 23:08:25,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 541. [2024-11-16 23:08:25,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 520 states have (on average 1.3692307692307693) internal successors, (712), 525 states have internal predecessors, (712), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:25,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 737 transitions. [2024-11-16 23:08:25,657 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 737 transitions. Word has length 73 [2024-11-16 23:08:25,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:25,658 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 737 transitions. [2024-11-16 23:08:25,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2024-11-16 23:08:25,658 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 737 transitions. [2024-11-16 23:08:25,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 23:08:25,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:25,659 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:08:25,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 23:08:25,659 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)] === [2024-11-16 23:08:25,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:25,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1148313299, now seen corresponding path program 1 times [2024-11-16 23:08:25,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:25,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383767536] [2024-11-16 23:08:25,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:25,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:25,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:25,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:25,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383767536] [2024-11-16 23:08:25,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383767536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:25,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:25,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 23:08:25,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817396538] [2024-11-16 23:08:25,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:25,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 23:08:25,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:25,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 23:08:25,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:08:25,902 INFO L87 Difference]: Start difference. First operand 541 states and 737 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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) [2024-11-16 23:08:26,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:26,508 INFO L93 Difference]: Finished difference Result 1062 states and 1456 transitions. [2024-11-16 23:08:26,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:08:26,508 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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 73 [2024-11-16 23:08:26,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:26,511 INFO L225 Difference]: With dead ends: 1062 [2024-11-16 23:08:26,512 INFO L226 Difference]: Without dead ends: 558 [2024-11-16 23:08:26,513 INFO L431 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 [2024-11-16 23:08:26,513 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 17 mSDsluCounter, 3564 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4107 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:26,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4107 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 23:08:26,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-16 23:08:26,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 544. [2024-11-16 23:08:26,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 523 states have (on average 1.3690248565965584) internal successors, (716), 528 states have internal predecessors, (716), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:26,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 741 transitions. [2024-11-16 23:08:26,524 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 741 transitions. Word has length 73 [2024-11-16 23:08:26,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:26,524 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 741 transitions. [2024-11-16 23:08:26,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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) [2024-11-16 23:08:26,524 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 741 transitions. [2024-11-16 23:08:26,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-16 23:08:26,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:26,525 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:08:26,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 23:08:26,526 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)] === [2024-11-16 23:08:26,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:26,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1459560256, now seen corresponding path program 1 times [2024-11-16 23:08:26,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:26,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657105405] [2024-11-16 23:08:26,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:26,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:26,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:26,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:26,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657105405] [2024-11-16 23:08:26,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657105405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:26,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:26,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 23:08:26,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113757990] [2024-11-16 23:08:26,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:26,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 23:08:26,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:26,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 23:08:26,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:08:26,855 INFO L87 Difference]: Start difference. First operand 544 states and 741 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 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) [2024-11-16 23:08:27,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:27,539 INFO L93 Difference]: Finished difference Result 1063 states and 1458 transitions. [2024-11-16 23:08:27,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:08:27,540 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 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 74 [2024-11-16 23:08:27,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:27,542 INFO L225 Difference]: With dead ends: 1063 [2024-11-16 23:08:27,542 INFO L226 Difference]: Without dead ends: 556 [2024-11-16 23:08:27,544 INFO L431 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 [2024-11-16 23:08:27,544 INFO L432 NwaCegarLoop]: 552 mSDtfsCounter, 13 mSDsluCounter, 3513 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4065 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:27,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4065 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 23:08:27,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-16 23:08:27,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 548. [2024-11-16 23:08:27,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 527 states have (on average 1.3681214421252372) internal successors, (721), 532 states have internal predecessors, (721), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:27,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 746 transitions. [2024-11-16 23:08:27,558 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 746 transitions. Word has length 74 [2024-11-16 23:08:27,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:27,558 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 746 transitions. [2024-11-16 23:08:27,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 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) [2024-11-16 23:08:27,559 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 746 transitions. [2024-11-16 23:08:27,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-16 23:08:27,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:27,560 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:08:27,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 23:08:27,561 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)] === [2024-11-16 23:08:27,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:27,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1800057769, now seen corresponding path program 1 times [2024-11-16 23:08:27,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:27,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756902427] [2024-11-16 23:08:27,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:27,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:27,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:27,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:27,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756902427] [2024-11-16 23:08:27,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756902427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:27,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:27,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:08:27,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080187017] [2024-11-16 23:08:27,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:27,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:08:27,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:27,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:08:27,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:08:27,747 INFO L87 Difference]: Start difference. First operand 548 states and 746 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 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) [2024-11-16 23:08:28,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:08:28,332 INFO L93 Difference]: Finished difference Result 1085 states and 1486 transitions. [2024-11-16 23:08:28,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:08:28,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 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 74 [2024-11-16 23:08:28,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:08:28,335 INFO L225 Difference]: With dead ends: 1085 [2024-11-16 23:08:28,335 INFO L226 Difference]: Without dead ends: 574 [2024-11-16 23:08:28,335 INFO L431 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 [2024-11-16 23:08:28,336 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 35 mSDsluCounter, 3106 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3666 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 23:08:28,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3666 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 23:08:28,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-16 23:08:28,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 545. [2024-11-16 23:08:28,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 524 states have (on average 1.3702290076335877) internal successors, (718), 529 states have internal predecessors, (718), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 23:08:28,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 743 transitions. [2024-11-16 23:08:28,346 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 743 transitions. Word has length 74 [2024-11-16 23:08:28,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:08:28,346 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 743 transitions. [2024-11-16 23:08:28,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 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) [2024-11-16 23:08:28,347 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 743 transitions. [2024-11-16 23:08:28,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-16 23:08:28,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:08:28,347 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:08:28,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 23:08:28,347 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)] === [2024-11-16 23:08:28,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:08:28,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1926979704, now seen corresponding path program 1 times [2024-11-16 23:08:28,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:08:28,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321370128] [2024-11-16 23:08:28,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:08:28,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:08:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:08:44,715 WARN L286 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-16 23:08:56,615 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 [2024-11-16 23:08:56,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:08:56,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:08:56,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321370128] [2024-11-16 23:08:56,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321370128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:08:56,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:08:56,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 23:08:56,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564642404] [2024-11-16 23:08:56,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:08:56,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 23:08:56,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:08:56,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 23:08:56,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=71, Unknown=2, NotChecked=16, Total=110 [2024-11-16 23:08:56,668 INFO L87 Difference]: Start difference. First operand 545 states and 743 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 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) [2024-11-16 23:09:01,212 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 [] [2024-11-16 23:09:05,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-16 23:09:09,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-16 23:09:13,113 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (div |c_ULTIMATE.start_main_~_hj_j~0#1| 8192)) (.cse3 (* (div |c_ULTIMATE.start_main_~_hj_j~0#1| 4294967296) 524288))) (let ((.cse0 (+ .cse3 |c_ULTIMATE.start_main_~_ha_hashv~0#1|)) (.cse6 (* 1030789530 |c_ULTIMATE.start_main_~_ha_hashv~0#1|)) (.cse7 (* |c_ULTIMATE.start_main_~_hj_j~0#1| 2061579059)) (.cse2 (* (- 4123158118) |c_ULTIMATE.start_main_~_hj_j~0#1|)) (.cse4 (* (- 2061579059) |c_ULTIMATE.start_main_~_ha_hashv~0#1|)) (.cse5 (* (- 1) .cse1))) (and (or (< .cse0 (+ .cse1 (mod |c_ULTIMATE.start_main_~_hj_i~0#1| 4294967296))) (< 4408680405129836980 (+ (* 1030789529 |c_ULTIMATE.start_main_~_hj_i~0#1|) (* 2147483648 (div (+ .cse2 8817360810260198248 (* (- 2061579059) |c_ULTIMATE.start_main_~_hj_i~0#1|) .cse3 .cse4 .cse5) 4294967296)) .cse6 .cse7 (* (div |c_ULTIMATE.start_main_~_hj_i~0#1| 4294967296) 2147483648)))) (= .cse1 .cse0) (<= 4408680405129836981 (+ .cse6 .cse7 (* (div (+ .cse2 8817360810260198248 .cse3 .cse4 .cse5) 4294967296) 2147483648)))))) is different from false [2024-11-16 23:09:18,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-16 23:09:23,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-16 23:09:27,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-16 23:09:30,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-16 23:09:34,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-16 23:09:38,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-16 23:09:42,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-16 23:09:44,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-16 23:09:48,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []