./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.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_BER_test3-1.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 eb2eb63835edf753d5a467feb7a4cdd6d105155177d7d0cab8bf29c1b74dbaf6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 22:50:39,880 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 22:50:39,942 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 22:50:39,948 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 22:50:39,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 22:50:39,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 22:50:39,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 22:50:39,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 22:50:39,975 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 22:50:39,975 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 22:50:39,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 22:50:39,976 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 22:50:39,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 22:50:39,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 22:50:39,978 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 22:50:39,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 22:50:39,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 22:50:39,979 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 22:50:39,979 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 22:50:39,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 22:50:39,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 22:50:39,983 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 22:50:39,983 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 22:50:39,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 22:50:39,984 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 22:50:39,984 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 22:50:39,984 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 22:50:39,984 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 22:50:39,985 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 22:50:39,985 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 22:50:39,985 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 22:50:39,985 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 22:50:39,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 22:50:39,985 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 22:50:39,986 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 22:50:39,986 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 22:50:39,986 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 22:50:39,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 22:50:39,986 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 22:50:39,986 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 22:50:39,987 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 22:50:39,987 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 22:50:39,987 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb2eb63835edf753d5a467feb7a4cdd6d105155177d7d0cab8bf29c1b74dbaf6 [2024-11-16 22:50:40,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 22:50:40,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 22:50:40,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 22:50:40,246 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 22:50:40,247 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 22:50:40,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i [2024-11-16 22:50:41,528 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 22:50:41,735 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 22:50:41,736 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i [2024-11-16 22:50:41,755 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14b4fcfe1/3d761abd09084e3b9c9d054c1235b3cd/FLAGdc2bde3e6 [2024-11-16 22:50:41,770 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14b4fcfe1/3d761abd09084e3b9c9d054c1235b3cd [2024-11-16 22:50:41,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 22:50:41,774 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 22:50:41,775 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 22:50:41,775 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 22:50:41,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 22:50:41,780 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:50:41" (1/1) ... [2024-11-16 22:50:41,781 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fa346a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:41, skipping insertion in model container [2024-11-16 22:50:41,781 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:50:41" (1/1) ... [2024-11-16 22:50:41,830 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 22:50:42,227 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_BER_test3-1.i[33021,33034] [2024-11-16 22:50:42,333 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_BER_test3-1.i[44590,44603] [2024-11-16 22:50:42,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 22:50:42,346 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 22:50:42,372 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_BER_test3-1.i[33021,33034] [2024-11-16 22:50:42,433 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_BER_test3-1.i[44590,44603] [2024-11-16 22:50:42,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 22:50:42,475 INFO L204 MainTranslator]: Completed translation [2024-11-16 22:50:42,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:42 WrapperNode [2024-11-16 22:50:42,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 22:50:42,478 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 22:50:42,478 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 22:50:42,478 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 22:50:42,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:42" (1/1) ... [2024-11-16 22:50:42,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:42" (1/1) ... [2024-11-16 22:50:42,555 INFO L138 Inliner]: procedures = 177, calls = 277, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1420 [2024-11-16 22:50:42,555 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 22:50:42,556 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 22:50:42,556 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 22:50:42,556 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 22:50:42,566 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:42" (1/1) ... [2024-11-16 22:50:42,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:42" (1/1) ... [2024-11-16 22:50:42,576 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:42" (1/1) ... [2024-11-16 22:50:42,658 INFO L175 MemorySlicer]: Split 255 memory accesses to 3 slices as follows [2, 219, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2024-11-16 22:50:42,658 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:42" (1/1) ... [2024-11-16 22:50:42,659 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:42" (1/1) ... [2024-11-16 22:50:42,696 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:42" (1/1) ... [2024-11-16 22:50:42,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:42" (1/1) ... [2024-11-16 22:50:42,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:42" (1/1) ... [2024-11-16 22:50:42,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:42" (1/1) ... [2024-11-16 22:50:42,720 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 22:50:42,721 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 22:50:42,721 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 22:50:42,721 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 22:50:42,722 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:42" (1/1) ... [2024-11-16 22:50:42,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 22:50:42,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 22:50:42,754 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 22:50:42,761 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 22:50:42,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 22:50:42,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 22:50:42,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 22:50:42,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 22:50:42,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 22:50:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 22:50:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 22:50:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 22:50:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-16 22:50:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-16 22:50:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-16 22:50:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-16 22:50:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-16 22:50:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-16 22:50:42,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 22:50:42,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 22:50:42,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 22:50:42,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 22:50:42,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 22:50:42,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 22:50:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 22:50:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 22:50:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 22:50:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 22:50:42,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 22:50:42,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 22:50:42,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 22:50:42,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 22:50:42,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 22:50:42,976 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 22:50:42,978 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 22:50:44,082 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L733: 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 22:50:44,156 INFO L? ?]: Removed 322 outVars from TransFormulas that were not future-live. [2024-11-16 22:50:44,156 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 22:50:44,194 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 22:50:44,195 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-16 22:50:44,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:50:44 BoogieIcfgContainer [2024-11-16 22:50:44,195 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 22:50:44,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 22:50:44,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 22:50:44,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 22:50:44,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:50:41" (1/3) ... [2024-11-16 22:50:44,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68140074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:50:44, skipping insertion in model container [2024-11-16 22:50:44,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:50:42" (2/3) ... [2024-11-16 22:50:44,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68140074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:50:44, skipping insertion in model container [2024-11-16 22:50:44,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:50:44" (3/3) ... [2024-11-16 22:50:44,203 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test3-1.i [2024-11-16 22:50:44,217 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 22:50:44,217 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 22:50:44,272 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 22:50:44,277 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;@4f8abbde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 22:50:44,310 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 22:50:44,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 416 states, 403 states have (on average 1.617866004962779) internal successors, (652), 410 states have internal predecessors, (652), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 22:50:44,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-16 22:50:44,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:50:44,321 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:50:44,321 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:50:44,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:50:44,325 INFO L85 PathProgramCache]: Analyzing trace with hash -760840493, now seen corresponding path program 1 times [2024-11-16 22:50:44,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:50:44,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260999730] [2024-11-16 22:50:44,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:50:44,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:50:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:44,444 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 22:50:44,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:50:44,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260999730] [2024-11-16 22:50:44,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260999730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:50:44,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 22:50:44,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 22:50:44,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631007819] [2024-11-16 22:50:44,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:50:44,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 22:50:44,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:50:44,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 22:50:44,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 22:50:44,470 INFO L87 Difference]: Start difference. First operand has 416 states, 403 states have (on average 1.617866004962779) internal successors, (652), 410 states have internal predecessors, (652), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) 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 22:50:44,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:50:44,558 INFO L93 Difference]: Finished difference Result 830 states and 1339 transitions. [2024-11-16 22:50:44,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 22:50:44,560 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 22:50:44,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:50:44,569 INFO L225 Difference]: With dead ends: 830 [2024-11-16 22:50:44,569 INFO L226 Difference]: Without dead ends: 412 [2024-11-16 22:50:44,572 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 22:50:44,575 INFO L432 NwaCegarLoop]: 557 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, 557 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 22:50:44,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 557 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 22:50:44,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-16 22:50:44,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2024-11-16 22:50:44,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 400 states have (on average 1.4475) internal successors, (579), 406 states have internal predecessors, (579), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 22:50:44,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 595 transitions. [2024-11-16 22:50:44,621 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 595 transitions. Word has length 9 [2024-11-16 22:50:44,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:50:44,621 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 595 transitions. [2024-11-16 22:50:44,622 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 22:50:44,622 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 595 transitions. [2024-11-16 22:50:44,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-16 22:50:44,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:50:44,623 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:50:44,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 22:50:44,624 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:50:44,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:50:44,624 INFO L85 PathProgramCache]: Analyzing trace with hash 856882925, now seen corresponding path program 1 times [2024-11-16 22:50:44,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:50:44,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158979871] [2024-11-16 22:50:44,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:50:44,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:50:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:44,816 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 22:50:44,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:50:44,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158979871] [2024-11-16 22:50:44,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158979871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:50:44,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 22:50:44,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 22:50:44,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054704761] [2024-11-16 22:50:44,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:50:44,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 22:50:44,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:50:44,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 22:50:44,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 22:50:44,818 INFO L87 Difference]: Start difference. First operand 412 states and 595 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 22:50:45,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:50:45,030 INFO L93 Difference]: Finished difference Result 1020 states and 1482 transitions. [2024-11-16 22:50:45,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 22:50:45,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-16 22:50:45,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:50:45,034 INFO L225 Difference]: With dead ends: 1020 [2024-11-16 22:50:45,034 INFO L226 Difference]: Without dead ends: 811 [2024-11-16 22:50:45,035 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 22:50:45,036 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 564 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 22:50:45,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1595 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 22:50:45,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2024-11-16 22:50:45,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 414. [2024-11-16 22:50:45,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 402 states have (on average 1.445273631840796) internal successors, (581), 408 states have internal predecessors, (581), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 22:50:45,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 597 transitions. [2024-11-16 22:50:45,059 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 597 transitions. Word has length 15 [2024-11-16 22:50:45,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:50:45,059 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 597 transitions. [2024-11-16 22:50:45,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 22:50:45,060 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 597 transitions. [2024-11-16 22:50:45,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 22:50:45,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:50:45,062 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:50:45,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 22:50:45,063 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:50:45,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:50:45,063 INFO L85 PathProgramCache]: Analyzing trace with hash 673248852, now seen corresponding path program 1 times [2024-11-16 22:50:45,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:50:45,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696946543] [2024-11-16 22:50:45,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:50:45,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:50:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:45,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 22:50:45,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:50:45,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696946543] [2024-11-16 22:50:45,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696946543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:50:45,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 22:50:45,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 22:50:45,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352092013] [2024-11-16 22:50:45,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:50:45,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 22:50:45,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:50:45,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 22:50:45,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 22:50:45,324 INFO L87 Difference]: Start difference. First operand 414 states and 597 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 22:50:45,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:50:45,451 INFO L93 Difference]: Finished difference Result 782 states and 1124 transitions. [2024-11-16 22:50:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 22:50:45,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-16 22:50:45,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:50:45,454 INFO L225 Difference]: With dead ends: 782 [2024-11-16 22:50:45,456 INFO L226 Difference]: Without dead ends: 372 [2024-11-16 22:50:45,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 22:50:45,458 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 30 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 22:50:45,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1360 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 22:50:45,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-16 22:50:45,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2024-11-16 22:50:45,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 360 states have (on average 1.4) internal successors, (504), 366 states have internal predecessors, (504), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 22:50:45,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 520 transitions. [2024-11-16 22:50:45,486 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 520 transitions. Word has length 92 [2024-11-16 22:50:45,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:50:45,486 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 520 transitions. [2024-11-16 22:50:45,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 22:50:45,486 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 520 transitions. [2024-11-16 22:50:45,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 22:50:45,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:50:45,488 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:50:45,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 22:50:45,489 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:50:45,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:50:45,491 INFO L85 PathProgramCache]: Analyzing trace with hash -751376851, now seen corresponding path program 1 times [2024-11-16 22:50:45,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:50:45,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994868132] [2024-11-16 22:50:45,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:50:45,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:50:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:45,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 22:50:45,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:50:45,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994868132] [2024-11-16 22:50:45,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994868132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:50:45,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 22:50:45,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 22:50:45,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102598049] [2024-11-16 22:50:45,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:50:45,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 22:50:45,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:50:45,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 22:50:45,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 22:50:45,707 INFO L87 Difference]: Start difference. First operand 372 states and 520 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 22:50:45,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:50:45,835 INFO L93 Difference]: Finished difference Result 993 states and 1399 transitions. [2024-11-16 22:50:45,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 22:50:45,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-16 22:50:45,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:50:45,837 INFO L225 Difference]: With dead ends: 993 [2024-11-16 22:50:45,838 INFO L226 Difference]: Without dead ends: 625 [2024-11-16 22:50:45,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 22:50:45,840 INFO L432 NwaCegarLoop]: 648 mSDtfsCounter, 296 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 22:50:45,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1103 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 22:50:45,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2024-11-16 22:50:45,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 621. [2024-11-16 22:50:45,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 609 states have (on average 1.4154351395730707) internal successors, (862), 615 states have internal predecessors, (862), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 22:50:45,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 878 transitions. [2024-11-16 22:50:45,859 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 878 transitions. Word has length 92 [2024-11-16 22:50:45,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:50:45,860 INFO L471 AbstractCegarLoop]: Abstraction has 621 states and 878 transitions. [2024-11-16 22:50:45,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 22:50:45,860 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 878 transitions. [2024-11-16 22:50:45,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 22:50:45,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:50:45,863 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:50:45,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 22:50:45,863 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:50:45,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:50:45,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1138685506, now seen corresponding path program 1 times [2024-11-16 22:50:45,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:50:45,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972063273] [2024-11-16 22:50:45,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:50:45,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:50:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:46,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 22:50:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:46,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 22:50:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 22:50:46,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:50:46,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972063273] [2024-11-16 22:50:46,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972063273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:50:46,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 22:50:46,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 22:50:46,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191862247] [2024-11-16 22:50:46,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:50:46,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 22:50:46,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:50:46,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 22:50:46,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 22:50:46,217 INFO L87 Difference]: Start difference. First operand 621 states and 878 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 22:50:46,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:50:46,606 INFO L93 Difference]: Finished difference Result 926 states and 1315 transitions. [2024-11-16 22:50:46,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 22:50:46,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 107 [2024-11-16 22:50:46,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:50:46,610 INFO L225 Difference]: With dead ends: 926 [2024-11-16 22:50:46,611 INFO L226 Difference]: Without dead ends: 905 [2024-11-16 22:50:46,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 22:50:46,612 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 470 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 22:50:46,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1718 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 22:50:46,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-11-16 22:50:46,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 623. [2024-11-16 22:50:46,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 611 states have (on average 1.414075286415712) internal successors, (864), 617 states have internal predecessors, (864), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 22:50:46,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 880 transitions. [2024-11-16 22:50:46,627 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 880 transitions. Word has length 107 [2024-11-16 22:50:46,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:50:46,628 INFO L471 AbstractCegarLoop]: Abstraction has 623 states and 880 transitions. [2024-11-16 22:50:46,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 22:50:46,628 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 880 transitions. [2024-11-16 22:50:46,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 22:50:46,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:50:46,630 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:46,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 22:50:46,630 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:50:46,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:50:46,631 INFO L85 PathProgramCache]: Analyzing trace with hash -2056678165, now seen corresponding path program 1 times [2024-11-16 22:50:46,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:50:46,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324261377] [2024-11-16 22:50:46,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:50:46,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:50:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:46,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 22:50:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:46,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 22:50:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:46,865 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 22:50:46,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:50:46,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324261377] [2024-11-16 22:50:46,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324261377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:50:46,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 22:50:46,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 22:50:46,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700008659] [2024-11-16 22:50:46,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:50:46,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 22:50:46,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:50:46,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 22:50:46,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 22:50:46,867 INFO L87 Difference]: Start difference. First operand 623 states and 880 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 22:50:47,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:50:47,127 INFO L93 Difference]: Finished difference Result 911 states and 1296 transitions. [2024-11-16 22:50:47,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 22:50:47,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 157 [2024-11-16 22:50:47,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:50:47,130 INFO L225 Difference]: With dead ends: 911 [2024-11-16 22:50:47,130 INFO L226 Difference]: Without dead ends: 542 [2024-11-16 22:50:47,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 22:50:47,131 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 38 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 22:50:47,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1407 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 22:50:47,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-16 22:50:47,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 539. [2024-11-16 22:50:47,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 527 states have (on average 1.3472485768500948) internal successors, (710), 533 states have internal predecessors, (710), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 22:50:47,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 726 transitions. [2024-11-16 22:50:47,142 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 726 transitions. Word has length 157 [2024-11-16 22:50:47,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:50:47,142 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 726 transitions. [2024-11-16 22:50:47,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 22:50:47,143 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 726 transitions. [2024-11-16 22:50:47,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 22:50:47,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:50:47,144 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:47,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 22:50:47,144 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:50:47,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:50:47,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1180855228, now seen corresponding path program 1 times [2024-11-16 22:50:47,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:50:47,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651028818] [2024-11-16 22:50:47,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:50:47,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:50:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:47,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 22:50:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:47,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 22:50:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:47,338 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 22:50:47,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:50:47,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651028818] [2024-11-16 22:50:47,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651028818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:50:47,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 22:50:47,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 22:50:47,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4282847] [2024-11-16 22:50:47,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:50:47,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 22:50:47,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:50:47,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 22:50:47,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 22:50:47,340 INFO L87 Difference]: Start difference. First operand 539 states and 726 transitions. Second operand has 6 states, 6 states have (on average 25.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 22:50:47,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:50:47,869 INFO L93 Difference]: Finished difference Result 1352 states and 1830 transitions. [2024-11-16 22:50:47,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 22:50:47,870 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 157 [2024-11-16 22:50:47,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:50:47,873 INFO L225 Difference]: With dead ends: 1352 [2024-11-16 22:50:47,873 INFO L226 Difference]: Without dead ends: 905 [2024-11-16 22:50:47,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-16 22:50:47,874 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 939 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 22:50:47,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 1843 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 22:50:47,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-11-16 22:50:47,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 680. [2024-11-16 22:50:47,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 668 states have (on average 1.348802395209581) internal successors, (901), 674 states have internal predecessors, (901), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 22:50:47,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 917 transitions. [2024-11-16 22:50:47,890 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 917 transitions. Word has length 157 [2024-11-16 22:50:47,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:50:47,890 INFO L471 AbstractCegarLoop]: Abstraction has 680 states and 917 transitions. [2024-11-16 22:50:47,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 22:50:47,891 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 917 transitions. [2024-11-16 22:50:47,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-16 22:50:47,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:50:47,892 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:50:47,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 22:50:47,892 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:50:47,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:50:47,893 INFO L85 PathProgramCache]: Analyzing trace with hash 852078940, now seen corresponding path program 1 times [2024-11-16 22:50:47,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:50:47,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521436777] [2024-11-16 22:50:47,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:50:47,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:50:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:48,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 22:50:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:48,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 22:50:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:48,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 22:50:48,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:50:48,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521436777] [2024-11-16 22:50:48,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521436777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 22:50:48,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521469146] [2024-11-16 22:50:48,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:50:48,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 22:50:48,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 22:50:48,671 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 22:50:48,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 22:50:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:48,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 22:50:48,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 22:50:49,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-16 22:50:49,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-16 22:50:49,350 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 22:50:49,353 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 22:50:49,561 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 22:50:49,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521469146] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 22:50:49,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 22:50:49,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 5] total 13 [2024-11-16 22:50:49,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980853694] [2024-11-16 22:50:49,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 22:50:49,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 22:50:49,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:50:49,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 22:50:49,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-16 22:50:49,564 INFO L87 Difference]: Start difference. First operand 680 states and 917 transitions. Second operand has 13 states, 13 states have (on average 25.615384615384617) internal successors, (333), 12 states have internal predecessors, (333), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-16 22:50:50,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:50:50,237 INFO L93 Difference]: Finished difference Result 2199 states and 2975 transitions. [2024-11-16 22:50:50,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 22:50:50,238 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 25.615384615384617) internal successors, (333), 12 states have internal predecessors, (333), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 168 [2024-11-16 22:50:50,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:50:50,243 INFO L225 Difference]: With dead ends: 2199 [2024-11-16 22:50:50,244 INFO L226 Difference]: Without dead ends: 1770 [2024-11-16 22:50:50,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 332 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-16 22:50:50,245 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 1409 mSDsluCounter, 4061 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 4617 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 22:50:50,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 4617 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 22:50:50,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2024-11-16 22:50:50,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1032. [2024-11-16 22:50:50,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 1016 states have (on average 1.3415354330708662) internal successors, (1363), 1022 states have internal predecessors, (1363), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-16 22:50:50,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1385 transitions. [2024-11-16 22:50:50,273 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1385 transitions. Word has length 168 [2024-11-16 22:50:50,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:50:50,273 INFO L471 AbstractCegarLoop]: Abstraction has 1032 states and 1385 transitions. [2024-11-16 22:50:50,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 25.615384615384617) internal successors, (333), 12 states have internal predecessors, (333), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-16 22:50:50,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1385 transitions. [2024-11-16 22:50:50,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-11-16 22:50:50,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:50:50,277 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:50:50,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 22:50:50,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 22:50:50,478 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:50:50,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:50:50,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1602099614, now seen corresponding path program 1 times [2024-11-16 22:50:50,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:50:50,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381978693] [2024-11-16 22:50:50,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:50:50,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:50:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:53,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 22:50:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:53,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 22:50:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:53,226 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 464 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 22:50:53,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:50:53,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381978693] [2024-11-16 22:50:53,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381978693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 22:50:53,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474728440] [2024-11-16 22:50:53,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:50:53,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 22:50:53,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 22:50:53,228 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 22:50:53,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 22:50:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:50:53,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 1904 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-16 22:50:53,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 22:50:53,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-16 22:50:54,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-16 22:50:54,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-16 22:50:54,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-16 22:50:54,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-16 22:50:54,332 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 464 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 22:50:54,333 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 22:50:54,748 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 464 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 22:50:54,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474728440] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 22:50:54,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 22:50:54,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 8] total 24 [2024-11-16 22:50:54,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094659931] [2024-11-16 22:50:54,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 22:50:54,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-16 22:50:54,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:50:54,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-16 22:50:54,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2024-11-16 22:50:54,752 INFO L87 Difference]: Start difference. First operand 1032 states and 1385 transitions. Second operand has 24 states, 24 states have (on average 42.75) internal successors, (1026), 23 states have internal predecessors, (1026), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-16 22:50:56,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:50:56,608 INFO L93 Difference]: Finished difference Result 4335 states and 5879 transitions. [2024-11-16 22:50:56,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-16 22:50:56,609 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 42.75) internal successors, (1026), 23 states have internal predecessors, (1026), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 399 [2024-11-16 22:50:56,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:50:56,620 INFO L225 Difference]: With dead ends: 4335 [2024-11-16 22:50:56,620 INFO L226 Difference]: Without dead ends: 3906 [2024-11-16 22:50:56,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 825 GetRequests, 790 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=820, Unknown=0, NotChecked=0, Total=1122 [2024-11-16 22:50:56,624 INFO L432 NwaCegarLoop]: 1440 mSDtfsCounter, 4801 mSDsluCounter, 12933 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4841 SdHoareTripleChecker+Valid, 14373 SdHoareTripleChecker+Invalid, 2089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 22:50:56,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4841 Valid, 14373 Invalid, 2089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 22:50:56,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3906 states. [2024-11-16 22:50:56,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3906 to 1908. [2024-11-16 22:50:56,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1908 states, 1886 states have (on average 1.3366914103923648) internal successors, (2521), 1892 states have internal predecessors, (2521), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-16 22:50:56,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1908 states to 1908 states and 2555 transitions. [2024-11-16 22:50:56,678 INFO L78 Accepts]: Start accepts. Automaton has 1908 states and 2555 transitions. Word has length 399 [2024-11-16 22:50:56,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:50:56,679 INFO L471 AbstractCegarLoop]: Abstraction has 1908 states and 2555 transitions. [2024-11-16 22:50:56,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 42.75) internal successors, (1026), 23 states have internal predecessors, (1026), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-16 22:50:56,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1908 states and 2555 transitions. [2024-11-16 22:50:56,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 862 [2024-11-16 22:50:56,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:50:56,690 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:50:56,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 22:50:56,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-16 22:50:56,895 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:50:56,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:50:56,896 INFO L85 PathProgramCache]: Analyzing trace with hash -369469474, now seen corresponding path program 2 times [2024-11-16 22:50:56,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:50:56,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110776063] [2024-11-16 22:50:56,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:50:56,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms