./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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_JEN_test1-1.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 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 13:56:15,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 13:56:15,152 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 13:56:15,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 13:56:15,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 13:56:15,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 13:56:15,171 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 13:56:15,171 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 13:56:15,171 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 13:56:15,172 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 13:56:15,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 13:56:15,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 13:56:15,173 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 13:56:15,173 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 13:56:15,173 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 13:56:15,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 13:56:15,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 13:56:15,174 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 13:56:15,174 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 13:56:15,175 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 13:56:15,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 13:56:15,176 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 13:56:15,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 13:56:15,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 13:56:15,177 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 13:56:15,177 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 13:56:15,177 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 13:56:15,177 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 13:56:15,178 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 13:56:15,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 13:56:15,178 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 13:56:15,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 13:56:15,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 13:56:15,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 13:56:15,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 13:56:15,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 13:56:15,180 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 13:56:15,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 13:56:15,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 13:56:15,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 13:56:15,181 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 13:56:15,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 13:56:15,183 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 [2024-11-10 13:56:15,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 13:56:15,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 13:56:15,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 13:56:15,370 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 13:56:15,370 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 13:56:15,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2024-11-10 13:56:16,649 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 13:56:16,922 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 13:56:16,922 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2024-11-10 13:56:16,932 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4240f3515/a161445fec9b4d0f87a858b123b365d8/FLAG479e48987 [2024-11-10 13:56:17,244 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4240f3515/a161445fec9b4d0f87a858b123b365d8 [2024-11-10 13:56:17,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 13:56:17,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 13:56:17,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 13:56:17,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 13:56:17,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 13:56:17,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:56:17" (1/1) ... [2024-11-10 13:56:17,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bbd38e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:17, skipping insertion in model container [2024-11-10 13:56:17,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:56:17" (1/1) ... [2024-11-10 13:56:17,291 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 13:56:17,634 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_JEN_test1-1.i[33021,33034] [2024-11-10 13:56:17,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 13:56:17,709 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 13:56:17,736 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_JEN_test1-1.i[33021,33034] [2024-11-10 13:56:17,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 13:56:17,821 INFO L204 MainTranslator]: Completed translation [2024-11-10 13:56:17,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:17 WrapperNode [2024-11-10 13:56:17,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 13:56:17,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 13:56:17,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 13:56:17,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 13:56:17,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:17" (1/1) ... [2024-11-10 13:56:17,869 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:17" (1/1) ... [2024-11-10 13:56:17,941 INFO L138 Inliner]: procedures = 176, calls = 179, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 820 [2024-11-10 13:56:17,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 13:56:17,942 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 13:56:17,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 13:56:17,946 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 13:56:17,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:17" (1/1) ... [2024-11-10 13:56:17,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:17" (1/1) ... [2024-11-10 13:56:17,983 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:17" (1/1) ... [2024-11-10 13:56:18,034 INFO L175 MemorySlicer]: Split 158 memory accesses to 2 slices as follows [2, 156]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 42 writes are split as follows [0, 42]. [2024-11-10 13:56:18,037 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:17" (1/1) ... [2024-11-10 13:56:18,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:17" (1/1) ... [2024-11-10 13:56:18,064 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:17" (1/1) ... [2024-11-10 13:56:18,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:17" (1/1) ... [2024-11-10 13:56:18,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:17" (1/1) ... [2024-11-10 13:56:18,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:17" (1/1) ... [2024-11-10 13:56:18,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 13:56:18,079 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 13:56:18,079 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 13:56:18,080 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 13:56:18,080 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:17" (1/1) ... [2024-11-10 13:56:18,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 13:56:18,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 13:56:18,109 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) [2024-11-10 13:56:18,111 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 [2024-11-10 13:56:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 13:56:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 13:56:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 13:56:18,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 13:56:18,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 13:56:18,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 13:56:18,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-10 13:56:18,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-10 13:56:18,153 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-10 13:56:18,153 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-10 13:56:18,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 13:56:18,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 13:56:18,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 13:56:18,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 13:56:18,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 13:56:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 13:56:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 13:56:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 13:56:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 13:56:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 13:56:18,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 13:56:18,289 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 13:56:18,290 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 13:56:18,974 INFO L? ?]: Removed 208 outVars from TransFormulas that were not future-live. [2024-11-10 13:56:18,975 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 13:56:19,007 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 13:56:19,008 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-10 13:56:19,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:56:19 BoogieIcfgContainer [2024-11-10 13:56:19,009 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 13:56:19,010 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 13:56:19,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 13:56:19,014 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 13:56:19,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:56:17" (1/3) ... [2024-11-10 13:56:19,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641ba4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:56:19, skipping insertion in model container [2024-11-10 13:56:19,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:17" (2/3) ... [2024-11-10 13:56:19,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641ba4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:56:19, skipping insertion in model container [2024-11-10 13:56:19,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:56:19" (3/3) ... [2024-11-10 13:56:19,016 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test1-1.i [2024-11-10 13:56:19,028 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 13:56:19,028 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 13:56:19,080 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 13:56:19,087 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;@42d39ae0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 13:56:19,088 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 13:56:19,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 238 states, 221 states have (on average 1.6063348416289593) internal successors, (355), 232 states have internal predecessors, (355), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-10 13:56:19,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-10 13:56:19,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:19,097 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:19,097 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:19,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:19,101 INFO L85 PathProgramCache]: Analyzing trace with hash 253456394, now seen corresponding path program 1 times [2024-11-10 13:56:19,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:19,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543341608] [2024-11-10 13:56:19,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:19,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:19,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 13:56:19,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:19,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543341608] [2024-11-10 13:56:19,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543341608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:19,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:19,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 13:56:19,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923519453] [2024-11-10 13:56:19,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:19,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 13:56:19,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:19,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 13:56:19,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 13:56:19,241 INFO L87 Difference]: Start difference. First operand has 238 states, 221 states have (on average 1.6063348416289593) internal successors, (355), 232 states have internal predecessors, (355), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2024-11-10 13:56:19,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:19,317 INFO L93 Difference]: Finished difference Result 474 states and 770 transitions. [2024-11-10 13:56:19,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 13:56:19,323 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 11 [2024-11-10 13:56:19,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:19,333 INFO L225 Difference]: With dead ends: 474 [2024-11-10 13:56:19,334 INFO L226 Difference]: Without dead ends: 234 [2024-11-10 13:56:19,340 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 [2024-11-10 13:56:19,343 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:19,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 323 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 13:56:19,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-10 13:56:19,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2024-11-10 13:56:19,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 218 states have (on average 1.444954128440367) internal successors, (315), 228 states have internal predecessors, (315), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-10 13:56:19,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 341 transitions. [2024-11-10 13:56:19,387 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 341 transitions. Word has length 11 [2024-11-10 13:56:19,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:19,387 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 341 transitions. [2024-11-10 13:56:19,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2024-11-10 13:56:19,387 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 341 transitions. [2024-11-10 13:56:19,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-10 13:56:19,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:19,388 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:19,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 13:56:19,388 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:19,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:19,389 INFO L85 PathProgramCache]: Analyzing trace with hash -313586976, now seen corresponding path program 1 times [2024-11-10 13:56:19,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:19,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576201939] [2024-11-10 13:56:19,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:19,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:19,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 13:56:19,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:19,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576201939] [2024-11-10 13:56:19,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576201939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:19,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:19,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 13:56:19,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321011842] [2024-11-10 13:56:19,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:19,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 13:56:19,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:19,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 13:56:19,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 13:56:19,472 INFO L87 Difference]: Start difference. First operand 234 states and 341 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-10 13:56:19,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:19,598 INFO L93 Difference]: Finished difference Result 462 states and 676 transitions. [2024-11-10 13:56:19,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 13:56:19,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 12 [2024-11-10 13:56:19,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:19,602 INFO L225 Difference]: With dead ends: 462 [2024-11-10 13:56:19,602 INFO L226 Difference]: Without dead ends: 431 [2024-11-10 13:56:19,602 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 [2024-11-10 13:56:19,603 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 276 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:19,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 671 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 13:56:19,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-10 13:56:19,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 236. [2024-11-10 13:56:19,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 220 states have (on average 1.440909090909091) internal successors, (317), 230 states have internal predecessors, (317), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-10 13:56:19,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 343 transitions. [2024-11-10 13:56:19,623 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 343 transitions. Word has length 12 [2024-11-10 13:56:19,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:19,623 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 343 transitions. [2024-11-10 13:56:19,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-10 13:56:19,623 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 343 transitions. [2024-11-10 13:56:19,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-10 13:56:19,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:19,626 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] [2024-11-10 13:56:19,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 13:56:19,626 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:19,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:19,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1570637592, now seen corresponding path program 1 times [2024-11-10 13:56:19,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:19,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193310477] [2024-11-10 13:56:19,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:19,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:20,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 13:56:20,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:20,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193310477] [2024-11-10 13:56:20,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193310477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:20,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:20,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 13:56:20,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451320865] [2024-11-10 13:56:20,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:20,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 13:56:20,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:20,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 13:56:20,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 13:56:20,034 INFO L87 Difference]: Start difference. First operand 236 states and 343 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-11-10 13:56:20,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:20,164 INFO L93 Difference]: Finished difference Result 471 states and 685 transitions. [2024-11-10 13:56:20,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 13:56:20,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 89 [2024-11-10 13:56:20,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:20,166 INFO L225 Difference]: With dead ends: 471 [2024-11-10 13:56:20,166 INFO L226 Difference]: Without dead ends: 239 [2024-11-10 13:56:20,167 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 [2024-11-10 13:56:20,168 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 105 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:20,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 788 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 13:56:20,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-11-10 13:56:20,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 236. [2024-11-10 13:56:20,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 220 states have (on average 1.4090909090909092) internal successors, (310), 230 states have internal predecessors, (310), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-10 13:56:20,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 336 transitions. [2024-11-10 13:56:20,193 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 336 transitions. Word has length 89 [2024-11-10 13:56:20,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:20,196 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 336 transitions. [2024-11-10 13:56:20,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-11-10 13:56:20,197 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 336 transitions. [2024-11-10 13:56:20,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-10 13:56:20,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:20,199 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] [2024-11-10 13:56:20,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 13:56:20,199 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:20,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:20,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1679245393, now seen corresponding path program 1 times [2024-11-10 13:56:20,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:20,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544719389] [2024-11-10 13:56:20,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:20,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:20,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 13:56:20,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:20,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544719389] [2024-11-10 13:56:20,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544719389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:20,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:20,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 13:56:20,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315620490] [2024-11-10 13:56:20,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:20,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 13:56:20,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:20,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 13:56:20,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 13:56:20,405 INFO L87 Difference]: Start difference. First operand 236 states and 336 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2024-11-10 13:56:20,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:20,473 INFO L93 Difference]: Finished difference Result 474 states and 677 transitions. [2024-11-10 13:56:20,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 13:56:20,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 89 [2024-11-10 13:56:20,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:20,475 INFO L225 Difference]: With dead ends: 474 [2024-11-10 13:56:20,476 INFO L226 Difference]: Without dead ends: 242 [2024-11-10 13:56:20,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 13:56:20,478 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 1 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:20,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 590 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 13:56:20,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-10 13:56:20,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2024-11-10 13:56:20,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 226 states have (on average 1.3982300884955752) internal successors, (316), 236 states have internal predecessors, (316), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-10 13:56:20,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 342 transitions. [2024-11-10 13:56:20,494 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 342 transitions. Word has length 89 [2024-11-10 13:56:20,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:20,494 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 342 transitions. [2024-11-10 13:56:20,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2024-11-10 13:56:20,495 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 342 transitions. [2024-11-10 13:56:20,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-10 13:56:20,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:20,498 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] [2024-11-10 13:56:20,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 13:56:20,498 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:20,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:20,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1959595282, now seen corresponding path program 1 times [2024-11-10 13:56:20,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:20,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989633890] [2024-11-10 13:56:20,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:20,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:20,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 13:56:20,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:20,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989633890] [2024-11-10 13:56:20,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989633890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:20,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:20,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 13:56:20,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90513145] [2024-11-10 13:56:20,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:20,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 13:56:20,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:20,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 13:56:20,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 13:56:20,626 INFO L87 Difference]: Start difference. First operand 242 states and 342 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2024-11-10 13:56:20,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:20,708 INFO L93 Difference]: Finished difference Result 616 states and 876 transitions. [2024-11-10 13:56:20,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 13:56:20,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 89 [2024-11-10 13:56:20,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:20,711 INFO L225 Difference]: With dead ends: 616 [2024-11-10 13:56:20,711 INFO L226 Difference]: Without dead ends: 378 [2024-11-10 13:56:20,712 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 [2024-11-10 13:56:20,713 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 134 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:20,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 614 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 13:56:20,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-10 13:56:20,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2024-11-10 13:56:20,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 362 states have (on average 1.4116022099447514) internal successors, (511), 372 states have internal predecessors, (511), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-10 13:56:20,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 537 transitions. [2024-11-10 13:56:20,733 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 537 transitions. Word has length 89 [2024-11-10 13:56:20,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:20,734 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 537 transitions. [2024-11-10 13:56:20,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2024-11-10 13:56:20,734 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 537 transitions. [2024-11-10 13:56:20,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-10 13:56:20,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:20,736 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] [2024-11-10 13:56:20,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 13:56:20,736 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:20,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:20,737 INFO L85 PathProgramCache]: Analyzing trace with hash 645186671, now seen corresponding path program 1 times [2024-11-10 13:56:20,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:20,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119613509] [2024-11-10 13:56:20,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:20,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:20,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 13:56:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:20,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-10 13:56:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:20,944 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 13:56:20,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:20,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119613509] [2024-11-10 13:56:20,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119613509] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 13:56:20,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512278963] [2024-11-10 13:56:20,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:20,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:20,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 13:56:20,954 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) [2024-11-10 13:56:20,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 13:56:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:21,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 13:56:21,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 13:56:21,334 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 13:56:21,334 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 13:56:21,481 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 13:56:21,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512278963] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 13:56:21,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 13:56:21,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-11-10 13:56:21,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777856644] [2024-11-10 13:56:21,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 13:56:21,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 13:56:21,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:21,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 13:56:21,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-10 13:56:21,488 INFO L87 Difference]: Start difference. First operand 378 states and 537 transitions. Second operand has 8 states, 8 states have (on average 33.125) internal successors, (265), 7 states have internal predecessors, (265), 4 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-10 13:56:21,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:21,851 INFO L93 Difference]: Finished difference Result 883 states and 1256 transitions. [2024-11-10 13:56:21,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 13:56:21,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 33.125) internal successors, (265), 7 states have internal predecessors, (265), 4 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 104 [2024-11-10 13:56:21,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:21,857 INFO L225 Difference]: With dead ends: 883 [2024-11-10 13:56:21,857 INFO L226 Difference]: Without dead ends: 852 [2024-11-10 13:56:21,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-10 13:56:21,859 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 1296 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:21,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 1417 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 13:56:21,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2024-11-10 13:56:21,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 849. [2024-11-10 13:56:21,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 824 states have (on average 1.3883495145631068) internal successors, (1144), 834 states have internal predecessors, (1144), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-10 13:56:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1188 transitions. [2024-11-10 13:56:21,879 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1188 transitions. Word has length 104 [2024-11-10 13:56:21,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:21,879 INFO L471 AbstractCegarLoop]: Abstraction has 849 states and 1188 transitions. [2024-11-10 13:56:21,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 33.125) internal successors, (265), 7 states have internal predecessors, (265), 4 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-10 13:56:21,880 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1188 transitions. [2024-11-10 13:56:21,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-10 13:56:21,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:21,883 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] [2024-11-10 13:56:21,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 13:56:22,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-10 13:56:22,088 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:22,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:22,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1419448255, now seen corresponding path program 1 times [2024-11-10 13:56:22,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:22,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020511427] [2024-11-10 13:56:22,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:22,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:22,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 13:56:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:22,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-10 13:56:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:22,921 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 464 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 13:56:22,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:22,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020511427] [2024-11-10 13:56:22,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020511427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 13:56:22,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120862421] [2024-11-10 13:56:22,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:22,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:22,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 13:56:22,923 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) [2024-11-10 13:56:22,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 13:56:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:23,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 1669 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 13:56:23,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 13:56:23,692 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 464 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 13:56:23,693 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 13:56:24,035 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 464 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 13:56:24,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120862421] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 13:56:24,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 13:56:24,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2024-11-10 13:56:24,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341317569] [2024-11-10 13:56:24,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 13:56:24,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 13:56:24,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:24,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 13:56:24,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-11-10 13:56:24,039 INFO L87 Difference]: Start difference. First operand 849 states and 1188 transitions. Second operand has 14 states, 14 states have (on average 51.92857142857143) internal successors, (727), 13 states have internal predecessors, (727), 4 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-10 13:56:24,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:24,685 INFO L93 Difference]: Finished difference Result 2101 states and 2975 transitions. [2024-11-10 13:56:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 13:56:24,685 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 51.92857142857143) internal successors, (727), 13 states have internal predecessors, (727), 4 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 335 [2024-11-10 13:56:24,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:24,692 INFO L225 Difference]: With dead ends: 2101 [2024-11-10 13:56:24,692 INFO L226 Difference]: Without dead ends: 2070 [2024-11-10 13:56:24,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 667 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-11-10 13:56:24,693 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 3507 mSDsluCounter, 2919 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3559 SdHoareTripleChecker+Valid, 3222 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:24,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3559 Valid, 3222 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 13:56:24,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states. [2024-11-10 13:56:24,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 2067. [2024-11-10 13:56:24,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2067 states, 2024 states have (on average 1.3863636363636365) internal successors, (2806), 2034 states have internal predecessors, (2806), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 31 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-10 13:56:24,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2067 states to 2067 states and 2886 transitions. [2024-11-10 13:56:24,726 INFO L78 Accepts]: Start accepts. Automaton has 2067 states and 2886 transitions. Word has length 335 [2024-11-10 13:56:24,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:24,726 INFO L471 AbstractCegarLoop]: Abstraction has 2067 states and 2886 transitions. [2024-11-10 13:56:24,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 51.92857142857143) internal successors, (727), 13 states have internal predecessors, (727), 4 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-10 13:56:24,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2067 states and 2886 transitions. [2024-11-10 13:56:24,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2024-11-10 13:56:24,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:24,738 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] [2024-11-10 13:56:24,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 13:56:24,941 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,SelfDestructingSolverStorable6 [2024-11-10 13:56:24,942 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:24,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:24,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1560275391, now seen corresponding path program 2 times [2024-11-10 13:56:24,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:24,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977634931] [2024-11-10 13:56:24,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:24,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms