./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-62.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/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-62.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 e13ee54c81e57197c9e1d82387e2e01bbf563310cc95985b0138918208043d56 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 18:14:37,130 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 18:14:37,191 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 18:14:37,197 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 18:14:37,198 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 18:14:37,223 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 18:14:37,225 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 18:14:37,226 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 18:14:37,227 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 18:14:37,228 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 18:14:37,228 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 18:14:37,228 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 18:14:37,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 18:14:37,229 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 18:14:37,229 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 18:14:37,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 18:14:37,233 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 18:14:37,233 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 18:14:37,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 18:14:37,234 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 18:14:37,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 18:14:37,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 18:14:37,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 18:14:37,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 18:14:37,236 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 18:14:37,236 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 18:14:37,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 18:14:37,236 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 18:14:37,237 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 18:14:37,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 18:14:37,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 18:14:37,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 18:14:37,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:14:37,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 18:14:37,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 18:14:37,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 18:14:37,238 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 18:14:37,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 18:14:37,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 18:14:37,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 18:14:37,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 18:14:37,240 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 18:14:37,240 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e13ee54c81e57197c9e1d82387e2e01bbf563310cc95985b0138918208043d56 [2024-11-16 18:14:37,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 18:14:37,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 18:14:37,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 18:14:37,509 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 18:14:37,509 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 18:14:37,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-62.i [2024-11-16 18:14:38,799 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 18:14:38,979 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 18:14:38,980 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-62.i [2024-11-16 18:14:38,991 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/608af9534/3b3a78e5e1a9498583a89cb0ffad7c37/FLAGc59131540 [2024-11-16 18:14:39,006 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/608af9534/3b3a78e5e1a9498583a89cb0ffad7c37 [2024-11-16 18:14:39,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 18:14:39,011 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 18:14:39,014 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 18:14:39,014 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 18:14:39,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 18:14:39,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:14:39" (1/1) ... [2024-11-16 18:14:39,022 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b215d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:39, skipping insertion in model container [2024-11-16 18:14:39,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:14:39" (1/1) ... [2024-11-16 18:14:39,045 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 18:14:39,242 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/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-62.i[916,929] [2024-11-16 18:14:39,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:14:39,289 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 18:14:39,298 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/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-62.i[916,929] [2024-11-16 18:14:39,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:14:39,341 INFO L204 MainTranslator]: Completed translation [2024-11-16 18:14:39,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:39 WrapperNode [2024-11-16 18:14:39,341 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 18:14:39,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 18:14:39,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 18:14:39,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 18:14:39,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:39" (1/1) ... [2024-11-16 18:14:39,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:39" (1/1) ... [2024-11-16 18:14:39,381 INFO L138 Inliner]: procedures = 26, calls = 111, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 329 [2024-11-16 18:14:39,381 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 18:14:39,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 18:14:39,382 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 18:14:39,382 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 18:14:39,390 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:39" (1/1) ... [2024-11-16 18:14:39,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:39" (1/1) ... [2024-11-16 18:14:39,394 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:39" (1/1) ... [2024-11-16 18:14:39,408 INFO L175 MemorySlicer]: Split 87 memory accesses to 6 slices as follows [2, 10, 29, 26, 4, 16]. 33 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 1, 3, 3, 1, 2]. The 14 writes are split as follows [0, 1, 4, 6, 1, 2]. [2024-11-16 18:14:39,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:39" (1/1) ... [2024-11-16 18:14:39,409 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:39" (1/1) ... [2024-11-16 18:14:39,419 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:39" (1/1) ... [2024-11-16 18:14:39,420 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:39" (1/1) ... [2024-11-16 18:14:39,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:39" (1/1) ... [2024-11-16 18:14:39,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:39" (1/1) ... [2024-11-16 18:14:39,425 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 18:14:39,426 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 18:14:39,426 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 18:14:39,427 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 18:14:39,432 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:39" (1/1) ... [2024-11-16 18:14:39,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:14:39,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:14:39,474 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 18:14:39,476 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 18:14:39,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 18:14:39,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 18:14:39,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 18:14:39,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 18:14:39,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 18:14:39,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 18:14:39,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 18:14:39,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 18:14:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 18:14:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 18:14:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 18:14:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 18:14:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 18:14:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 18:14:39,525 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 18:14:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 18:14:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 18:14:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 18:14:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 18:14:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 18:14:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 18:14:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 18:14:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 18:14:39,625 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 18:14:39,627 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 18:14:39,877 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L94: havoc property_#t~mem40#1;havoc property_#t~mem41#1;havoc property_#t~ite48#1;havoc property_#t~mem42#1;havoc property_#t~mem47#1;havoc property_#t~mem43#1;havoc property_#t~ite46#1;havoc property_#t~mem44#1;havoc property_#t~mem45#1;havoc property_#t~short49#1;havoc property_#t~mem50#1;havoc property_#t~mem51#1;havoc property_#t~ite59#1;havoc property_#t~mem52#1;havoc property_#t~ite58#1;havoc property_#t~mem53#1;havoc property_#t~mem54#1;havoc property_#t~ite57#1;havoc property_#t~mem56#1;havoc property_#t~mem55#1;havoc property_#t~short60#1;havoc property_#t~mem61#1;havoc property_#t~ite75#1;havoc property_#t~mem62#1;havoc property_#t~ite71#1;havoc property_#t~mem65#1;havoc property_#t~mem63#1;havoc property_#t~mem64#1;havoc property_#t~mem66#1;havoc property_#t~ite70#1;havoc property_#t~mem67#1;havoc property_#t~mem69#1;havoc property_#t~mem68#1;havoc property_#t~mem74#1;havoc property_#t~mem72#1;havoc property_#t~mem73#1;havoc property_#t~short76#1;havoc property_#t~mem78#1;havoc property_#t~mem77#1;havoc property_#t~short79#1;havoc property_#t~mem81#1;havoc property_#t~mem80#1;havoc property_#t~short82#1; [2024-11-16 18:14:39,900 INFO L? ?]: Removed 71 outVars from TransFormulas that were not future-live. [2024-11-16 18:14:39,901 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 18:14:39,916 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 18:14:39,917 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 18:14:39,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:14:39 BoogieIcfgContainer [2024-11-16 18:14:39,917 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 18:14:39,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 18:14:39,921 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 18:14:39,924 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 18:14:39,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:14:39" (1/3) ... [2024-11-16 18:14:39,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70af5cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:14:39, skipping insertion in model container [2024-11-16 18:14:39,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:39" (2/3) ... [2024-11-16 18:14:39,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70af5cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:14:39, skipping insertion in model container [2024-11-16 18:14:39,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:14:39" (3/3) ... [2024-11-16 18:14:39,926 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-62.i [2024-11-16 18:14:39,940 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 18:14:39,941 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 18:14:39,989 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 18:14:39,995 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;@26f19218, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 18:14:39,995 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 18:14:40,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 65 states have (on average 1.4) internal successors, (91), 66 states have internal predecessors, (91), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:40,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-16 18:14:40,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:40,012 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:40,012 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:40,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:40,017 INFO L85 PathProgramCache]: Analyzing trace with hash -276076069, now seen corresponding path program 1 times [2024-11-16 18:14:40,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:40,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969474105] [2024-11-16 18:14:40,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:40,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,355 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:40,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:40,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969474105] [2024-11-16 18:14:40,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969474105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:40,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:40,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 18:14:40,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296906890] [2024-11-16 18:14:40,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:40,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 18:14:40,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:40,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 18:14:40,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:14:40,386 INFO L87 Difference]: Start difference. First operand has 76 states, 65 states have (on average 1.4) internal successors, (91), 66 states have internal predecessors, (91), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 18:14:40,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:40,413 INFO L93 Difference]: Finished difference Result 144 states and 215 transitions. [2024-11-16 18:14:40,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 18:14:40,415 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2024-11-16 18:14:40,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:40,423 INFO L225 Difference]: With dead ends: 144 [2024-11-16 18:14:40,424 INFO L226 Difference]: Without dead ends: 71 [2024-11-16 18:14:40,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 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 18:14:40,431 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:40,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:14:40,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-16 18:14:40,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-16 18:14:40,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 61 states have (on average 1.360655737704918) internal successors, (83), 61 states have internal predecessors, (83), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:40,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2024-11-16 18:14:40,469 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 75 [2024-11-16 18:14:40,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:40,469 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2024-11-16 18:14:40,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 18:14:40,470 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2024-11-16 18:14:40,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-16 18:14:40,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:40,472 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:40,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 18:14:40,473 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:40,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:40,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1084411107, now seen corresponding path program 1 times [2024-11-16 18:14:40,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:40,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311983355] [2024-11-16 18:14:40,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:40,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,700 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:40,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:40,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311983355] [2024-11-16 18:14:40,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311983355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:40,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:40,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:14:40,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063322184] [2024-11-16 18:14:40,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:40,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:14:40,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:40,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:14:40,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:14:40,704 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:40,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:40,739 INFO L93 Difference]: Finished difference Result 142 states and 199 transitions. [2024-11-16 18:14:40,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:14:40,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 75 [2024-11-16 18:14:40,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:40,741 INFO L225 Difference]: With dead ends: 142 [2024-11-16 18:14:40,741 INFO L226 Difference]: Without dead ends: 74 [2024-11-16 18:14:40,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:14:40,743 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 1 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:40,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 277 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:14:40,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-16 18:14:40,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2024-11-16 18:14:40,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 63 states have (on average 1.3492063492063493) internal successors, (85), 63 states have internal predecessors, (85), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:40,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2024-11-16 18:14:40,750 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 75 [2024-11-16 18:14:40,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:40,752 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2024-11-16 18:14:40,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:40,752 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2024-11-16 18:14:40,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-16 18:14:40,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:40,753 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:40,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 18:14:40,754 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:40,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:40,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1467745854, now seen corresponding path program 1 times [2024-11-16 18:14:40,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:40,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519064531] [2024-11-16 18:14:40,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:40,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:40,896 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:40,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:40,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519064531] [2024-11-16 18:14:40,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519064531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:40,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:40,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:14:40,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602929313] [2024-11-16 18:14:40,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:40,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:14:40,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:40,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:14:40,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:14:40,901 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:40,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:40,936 INFO L93 Difference]: Finished difference Result 146 states and 203 transitions. [2024-11-16 18:14:40,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:14:40,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 75 [2024-11-16 18:14:40,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:40,941 INFO L225 Difference]: With dead ends: 146 [2024-11-16 18:14:40,941 INFO L226 Difference]: Without dead ends: 76 [2024-11-16 18:14:40,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:14:40,943 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 1 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:40,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 280 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:14:40,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-16 18:14:40,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2024-11-16 18:14:40,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 65 states have (on average 1.3384615384615384) internal successors, (87), 65 states have internal predecessors, (87), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:40,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 103 transitions. [2024-11-16 18:14:40,961 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 103 transitions. Word has length 75 [2024-11-16 18:14:40,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:40,961 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 103 transitions. [2024-11-16 18:14:40,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:40,961 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2024-11-16 18:14:40,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-16 18:14:40,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:40,962 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:40,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 18:14:40,963 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:40,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:40,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1439116703, now seen corresponding path program 1 times [2024-11-16 18:14:40,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:40,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926467688] [2024-11-16 18:14:40,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:40,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,242 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:41,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:41,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926467688] [2024-11-16 18:14:41,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926467688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:41,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:41,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:14:41,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015194796] [2024-11-16 18:14:41,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:41,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:14:41,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:41,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:14:41,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:14:41,243 INFO L87 Difference]: Start difference. First operand 75 states and 103 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:41,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:41,337 INFO L93 Difference]: Finished difference Result 175 states and 241 transitions. [2024-11-16 18:14:41,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:14:41,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 75 [2024-11-16 18:14:41,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:41,339 INFO L225 Difference]: With dead ends: 175 [2024-11-16 18:14:41,341 INFO L226 Difference]: Without dead ends: 103 [2024-11-16 18:14:41,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 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 18:14:41,343 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 89 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:41,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 256 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:14:41,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-16 18:14:41,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 75. [2024-11-16 18:14:41,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 65 states have (on average 1.323076923076923) internal successors, (86), 65 states have internal predecessors, (86), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:41,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 102 transitions. [2024-11-16 18:14:41,350 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 102 transitions. Word has length 75 [2024-11-16 18:14:41,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:41,350 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 102 transitions. [2024-11-16 18:14:41,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:41,350 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 102 transitions. [2024-11-16 18:14:41,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 18:14:41,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:41,351 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:41,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 18:14:41,352 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:41,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:41,352 INFO L85 PathProgramCache]: Analyzing trace with hash 700686627, now seen corresponding path program 1 times [2024-11-16 18:14:41,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:41,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603952034] [2024-11-16 18:14:41,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:41,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,593 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:41,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:41,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603952034] [2024-11-16 18:14:41,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603952034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:41,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:41,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:14:41,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124192461] [2024-11-16 18:14:41,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:41,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:14:41,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:41,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:14:41,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:14:41,597 INFO L87 Difference]: Start difference. First operand 75 states and 102 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:41,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:41,726 INFO L93 Difference]: Finished difference Result 222 states and 304 transitions. [2024-11-16 18:14:41,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:14:41,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 77 [2024-11-16 18:14:41,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:41,729 INFO L225 Difference]: With dead ends: 222 [2024-11-16 18:14:41,729 INFO L226 Difference]: Without dead ends: 150 [2024-11-16 18:14:41,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:14:41,730 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 90 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:41,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 532 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:14:41,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-16 18:14:41,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 85. [2024-11-16 18:14:41,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 75 states have (on average 1.3333333333333333) internal successors, (100), 75 states have internal predecessors, (100), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:41,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 116 transitions. [2024-11-16 18:14:41,737 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 116 transitions. Word has length 77 [2024-11-16 18:14:41,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:41,737 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 116 transitions. [2024-11-16 18:14:41,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:41,738 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 116 transitions. [2024-11-16 18:14:41,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 18:14:41,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:41,739 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:41,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 18:14:41,739 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:41,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:41,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1637739180, now seen corresponding path program 1 times [2024-11-16 18:14:41,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:41,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827952807] [2024-11-16 18:14:41,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:41,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:41,869 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:41,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:41,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827952807] [2024-11-16 18:14:41,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827952807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:41,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:41,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:14:41,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507868733] [2024-11-16 18:14:41,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:41,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:14:41,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:41,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:14:41,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:14:41,871 INFO L87 Difference]: Start difference. First operand 85 states and 116 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:41,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:41,891 INFO L93 Difference]: Finished difference Result 170 states and 233 transitions. [2024-11-16 18:14:41,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:14:41,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 79 [2024-11-16 18:14:41,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:41,895 INFO L225 Difference]: With dead ends: 170 [2024-11-16 18:14:41,895 INFO L226 Difference]: Without dead ends: 88 [2024-11-16 18:14:41,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:14:41,897 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:41,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 363 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:14:41,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-16 18:14:41,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-16 18:14:41,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 78 states have (on average 1.3205128205128205) internal successors, (103), 78 states have internal predecessors, (103), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:41,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 119 transitions. [2024-11-16 18:14:41,905 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 119 transitions. Word has length 79 [2024-11-16 18:14:41,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:41,905 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 119 transitions. [2024-11-16 18:14:41,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:41,906 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 119 transitions. [2024-11-16 18:14:41,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 18:14:41,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:41,907 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:41,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 18:14:41,907 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:41,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:41,908 INFO L85 PathProgramCache]: Analyzing trace with hash 346038566, now seen corresponding path program 1 times [2024-11-16 18:14:41,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:41,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744723598] [2024-11-16 18:14:41,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:41,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,194 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:42,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:42,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744723598] [2024-11-16 18:14:42,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744723598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:42,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:42,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:14:42,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16783978] [2024-11-16 18:14:42,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:42,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:14:42,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:42,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:14:42,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:14:42,197 INFO L87 Difference]: Start difference. First operand 88 states and 119 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 18:14:42,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:42,253 INFO L93 Difference]: Finished difference Result 208 states and 279 transitions. [2024-11-16 18:14:42,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:14:42,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2024-11-16 18:14:42,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:42,255 INFO L225 Difference]: With dead ends: 208 [2024-11-16 18:14:42,255 INFO L226 Difference]: Without dead ends: 123 [2024-11-16 18:14:42,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:14:42,256 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 48 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:42,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 469 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:14:42,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-16 18:14:42,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 88. [2024-11-16 18:14:42,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 78 states have (on average 1.3076923076923077) internal successors, (102), 78 states have internal predecessors, (102), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:42,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 118 transitions. [2024-11-16 18:14:42,261 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 118 transitions. Word has length 79 [2024-11-16 18:14:42,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:42,261 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 118 transitions. [2024-11-16 18:14:42,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 18:14:42,262 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 118 transitions. [2024-11-16 18:14:42,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 18:14:42,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:42,263 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:42,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 18:14:42,263 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:42,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:42,263 INFO L85 PathProgramCache]: Analyzing trace with hash 209122784, now seen corresponding path program 1 times [2024-11-16 18:14:42,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:42,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594312759] [2024-11-16 18:14:42,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:42,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,490 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:42,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:42,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594312759] [2024-11-16 18:14:42,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594312759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:42,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:42,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:14:42,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310924411] [2024-11-16 18:14:42,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:42,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:14:42,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:42,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:14:42,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:14:42,492 INFO L87 Difference]: Start difference. First operand 88 states and 118 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 18:14:42,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:42,551 INFO L93 Difference]: Finished difference Result 208 states and 277 transitions. [2024-11-16 18:14:42,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:14:42,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2024-11-16 18:14:42,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:42,554 INFO L225 Difference]: With dead ends: 208 [2024-11-16 18:14:42,554 INFO L226 Difference]: Without dead ends: 123 [2024-11-16 18:14:42,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:14:42,555 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 51 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:42,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 548 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:14:42,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-16 18:14:42,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 88. [2024-11-16 18:14:42,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 78 states have (on average 1.294871794871795) internal successors, (101), 78 states have internal predecessors, (101), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:42,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 117 transitions. [2024-11-16 18:14:42,566 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 117 transitions. Word has length 79 [2024-11-16 18:14:42,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:42,566 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 117 transitions. [2024-11-16 18:14:42,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 18:14:42,567 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 117 transitions. [2024-11-16 18:14:42,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 18:14:42,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:42,569 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:42,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 18:14:42,569 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:42,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:42,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1504436614, now seen corresponding path program 1 times [2024-11-16 18:14:42,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:42,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880695924] [2024-11-16 18:14:42,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:42,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:42,723 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:42,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:42,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880695924] [2024-11-16 18:14:42,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880695924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:42,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:42,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:14:42,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528080650] [2024-11-16 18:14:42,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:42,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:14:42,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:42,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:14:42,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:14:42,727 INFO L87 Difference]: Start difference. First operand 88 states and 117 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:42,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:42,757 INFO L93 Difference]: Finished difference Result 177 states and 236 transitions. [2024-11-16 18:14:42,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:14:42,757 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 81 [2024-11-16 18:14:42,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:42,758 INFO L225 Difference]: With dead ends: 177 [2024-11-16 18:14:42,759 INFO L226 Difference]: Without dead ends: 92 [2024-11-16 18:14:42,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:14:42,759 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:42,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 449 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:14:42,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-16 18:14:42,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 89. [2024-11-16 18:14:42,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 79 states have (on average 1.2911392405063291) internal successors, (102), 79 states have internal predecessors, (102), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:42,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 118 transitions. [2024-11-16 18:14:42,768 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 118 transitions. Word has length 81 [2024-11-16 18:14:42,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:42,768 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 118 transitions. [2024-11-16 18:14:42,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:42,768 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 118 transitions. [2024-11-16 18:14:42,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 18:14:42,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:42,769 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:42,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 18:14:42,769 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:42,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:42,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1055454217, now seen corresponding path program 1 times [2024-11-16 18:14:42,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:42,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412141513] [2024-11-16 18:14:42,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:42,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:43,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:43,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:43,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:43,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:43,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:43,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:43,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:43,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:43,256 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-16 18:14:43,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:43,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412141513] [2024-11-16 18:14:43,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412141513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:14:43,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074873830] [2024-11-16 18:14:43,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:43,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:14:43,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:14:43,261 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 18:14:43,263 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 18:14:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:43,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-16 18:14:43,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:14:43,434 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 15 treesize of output 1 [2024-11-16 18:14:43,638 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 29 treesize of output 13 [2024-11-16 18:14:43,655 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 27 treesize of output 11 [2024-11-16 18:14:43,666 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 27 treesize of output 11 [2024-11-16 18:14:43,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-16 18:14:43,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2024-11-16 18:14:43,702 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 81 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-16 18:14:43,704 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 18:14:43,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-16 18:14:43,906 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-16 18:14:43,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074873830] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 18:14:43,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 18:14:43,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2024-11-16 18:14:43,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848032871] [2024-11-16 18:14:43,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 18:14:43,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-16 18:14:43,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:43,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-16 18:14:43,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-11-16 18:14:43,909 INFO L87 Difference]: Start difference. First operand 89 states and 118 transitions. Second operand has 19 states, 16 states have (on average 5.1875) internal successors, (83), 19 states have internal predecessors, (83), 9 states have call successors, (20), 3 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 9 states have call successors, (20) [2024-11-16 18:14:44,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:44,200 INFO L93 Difference]: Finished difference Result 181 states and 238 transitions. [2024-11-16 18:14:44,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 18:14:44,203 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 5.1875) internal successors, (83), 19 states have internal predecessors, (83), 9 states have call successors, (20), 3 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 9 states have call successors, (20) Word has length 81 [2024-11-16 18:14:44,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:44,203 INFO L225 Difference]: With dead ends: 181 [2024-11-16 18:14:44,204 INFO L226 Difference]: Without dead ends: 95 [2024-11-16 18:14:44,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2024-11-16 18:14:44,204 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 130 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:44,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 378 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:14:44,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-16 18:14:44,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-11-16 18:14:44,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.2560975609756098) internal successors, (103), 82 states have internal predecessors, (103), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:44,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 119 transitions. [2024-11-16 18:14:44,217 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 119 transitions. Word has length 81 [2024-11-16 18:14:44,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:44,217 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 119 transitions. [2024-11-16 18:14:44,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 5.1875) internal successors, (83), 19 states have internal predecessors, (83), 9 states have call successors, (20), 3 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 9 states have call successors, (20) [2024-11-16 18:14:44,218 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 119 transitions. [2024-11-16 18:14:44,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 18:14:44,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:44,218 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:44,243 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 18:14:44,419 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,SelfDestructingSolverStorable9 [2024-11-16 18:14:44,419 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:44,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:44,420 INFO L85 PathProgramCache]: Analyzing trace with hash 321068831, now seen corresponding path program 1 times [2024-11-16 18:14:44,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:44,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745817412] [2024-11-16 18:14:44,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:44,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:44,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:44,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:44,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:44,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:44,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:44,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:44,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:44,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:44,559 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:44,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:44,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745817412] [2024-11-16 18:14:44,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745817412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:44,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:44,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:14:44,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722673334] [2024-11-16 18:14:44,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:44,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:14:44,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:44,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:14:44,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:14:44,563 INFO L87 Difference]: Start difference. First operand 93 states and 119 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:44,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:44,655 INFO L93 Difference]: Finished difference Result 187 states and 238 transitions. [2024-11-16 18:14:44,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:14:44,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 82 [2024-11-16 18:14:44,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:44,657 INFO L225 Difference]: With dead ends: 187 [2024-11-16 18:14:44,657 INFO L226 Difference]: Without dead ends: 97 [2024-11-16 18:14:44,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 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 18:14:44,658 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 55 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:44,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 224 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:14:44,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-16 18:14:44,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-16 18:14:44,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 85 states have (on average 1.2352941176470589) internal successors, (105), 85 states have internal predecessors, (105), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:44,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 121 transitions. [2024-11-16 18:14:44,667 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 121 transitions. Word has length 82 [2024-11-16 18:14:44,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:44,667 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 121 transitions. [2024-11-16 18:14:44,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:44,667 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 121 transitions. [2024-11-16 18:14:44,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 18:14:44,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:44,668 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:44,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 18:14:44,668 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:44,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:44,668 INFO L85 PathProgramCache]: Analyzing trace with hash -531041167, now seen corresponding path program 1 times [2024-11-16 18:14:44,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:44,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660586378] [2024-11-16 18:14:44,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:44,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:45,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:45,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:45,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:45,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:45,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:45,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:45,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:45,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:45,574 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:45,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:45,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660586378] [2024-11-16 18:14:45,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660586378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:45,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:45,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 18:14:45,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623302014] [2024-11-16 18:14:45,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:45,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 18:14:45,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:45,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 18:14:45,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:14:45,576 INFO L87 Difference]: Start difference. First operand 97 states and 121 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 18:14:46,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:46,191 INFO L93 Difference]: Finished difference Result 252 states and 314 transitions. [2024-11-16 18:14:46,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 18:14:46,192 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2024-11-16 18:14:46,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:46,193 INFO L225 Difference]: With dead ends: 252 [2024-11-16 18:14:46,193 INFO L226 Difference]: Without dead ends: 158 [2024-11-16 18:14:46,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-11-16 18:14:46,194 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 148 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:46,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 896 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:14:46,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-16 18:14:46,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 107. [2024-11-16 18:14:46,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 95 states have (on average 1.2421052631578948) internal successors, (118), 95 states have internal predecessors, (118), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:46,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 134 transitions. [2024-11-16 18:14:46,201 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 134 transitions. Word has length 82 [2024-11-16 18:14:46,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:46,201 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 134 transitions. [2024-11-16 18:14:46,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 18:14:46,201 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 134 transitions. [2024-11-16 18:14:46,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 18:14:46,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:46,202 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:46,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 18:14:46,202 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:46,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:46,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1041575344, now seen corresponding path program 1 times [2024-11-16 18:14:46,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:46,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395485815] [2024-11-16 18:14:46,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:46,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,384 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:46,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:46,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395485815] [2024-11-16 18:14:46,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395485815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:46,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:46,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:14:46,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111596750] [2024-11-16 18:14:46,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:46,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:14:46,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:46,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:14:46,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:14:46,385 INFO L87 Difference]: Start difference. First operand 107 states and 134 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:46,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:46,467 INFO L93 Difference]: Finished difference Result 258 states and 321 transitions. [2024-11-16 18:14:46,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:14:46,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 82 [2024-11-16 18:14:46,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:46,469 INFO L225 Difference]: With dead ends: 258 [2024-11-16 18:14:46,469 INFO L226 Difference]: Without dead ends: 154 [2024-11-16 18:14:46,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:14:46,470 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 55 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:46,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 465 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:14:46,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-16 18:14:46,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 107. [2024-11-16 18:14:46,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 95 states have (on average 1.231578947368421) internal successors, (117), 95 states have internal predecessors, (117), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:46,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 133 transitions. [2024-11-16 18:14:46,477 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 133 transitions. Word has length 82 [2024-11-16 18:14:46,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:46,477 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 133 transitions. [2024-11-16 18:14:46,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:46,477 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 133 transitions. [2024-11-16 18:14:46,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 18:14:46,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:46,478 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:46,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 18:14:46,478 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:46,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:46,479 INFO L85 PathProgramCache]: Analyzing trace with hash -598047920, now seen corresponding path program 1 times [2024-11-16 18:14:46,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:46,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923890554] [2024-11-16 18:14:46,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:46,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:46,693 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:46,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:46,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923890554] [2024-11-16 18:14:46,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923890554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:46,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:46,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:14:46,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114014167] [2024-11-16 18:14:46,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:46,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:14:46,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:46,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:14:46,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:14:46,695 INFO L87 Difference]: Start difference. First operand 107 states and 133 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 18:14:46,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:46,802 INFO L93 Difference]: Finished difference Result 255 states and 316 transitions. [2024-11-16 18:14:46,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:14:46,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2024-11-16 18:14:46,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:46,803 INFO L225 Difference]: With dead ends: 255 [2024-11-16 18:14:46,804 INFO L226 Difference]: Without dead ends: 151 [2024-11-16 18:14:46,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:14:46,804 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 54 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:46,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 622 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:14:46,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-16 18:14:46,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 107. [2024-11-16 18:14:46,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 95 states have (on average 1.2210526315789474) internal successors, (116), 95 states have internal predecessors, (116), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:46,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 132 transitions. [2024-11-16 18:14:46,813 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 132 transitions. Word has length 82 [2024-11-16 18:14:46,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:46,814 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 132 transitions. [2024-11-16 18:14:46,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 18:14:46,814 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 132 transitions. [2024-11-16 18:14:46,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 18:14:46,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:46,814 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:46,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 18:14:46,815 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:46,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:46,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1108582097, now seen corresponding path program 1 times [2024-11-16 18:14:46,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:46,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715013707] [2024-11-16 18:14:46,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:46,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:47,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:47,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:47,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:47,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:47,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:47,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:47,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:47,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:47,564 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:47,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:47,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715013707] [2024-11-16 18:14:47,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715013707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:47,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:47,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 18:14:47,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944320297] [2024-11-16 18:14:47,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:47,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 18:14:47,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:47,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 18:14:47,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-16 18:14:47,566 INFO L87 Difference]: Start difference. First operand 107 states and 132 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 18:14:48,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:48,408 INFO L93 Difference]: Finished difference Result 600 states and 730 transitions. [2024-11-16 18:14:48,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-16 18:14:48,409 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2024-11-16 18:14:48,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:48,411 INFO L225 Difference]: With dead ends: 600 [2024-11-16 18:14:48,411 INFO L226 Difference]: Without dead ends: 496 [2024-11-16 18:14:48,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=234, Invalid=956, Unknown=0, NotChecked=0, Total=1190 [2024-11-16 18:14:48,412 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 524 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:48,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1296 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 18:14:48,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-16 18:14:48,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 224. [2024-11-16 18:14:48,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 201 states have (on average 1.228855721393035) internal successors, (247), 201 states have internal predecessors, (247), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-16 18:14:48,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 279 transitions. [2024-11-16 18:14:48,432 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 279 transitions. Word has length 82 [2024-11-16 18:14:48,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:48,432 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 279 transitions. [2024-11-16 18:14:48,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 18:14:48,433 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 279 transitions. [2024-11-16 18:14:48,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 18:14:48,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:48,434 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:48,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 18:14:48,434 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:48,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:48,434 INFO L85 PathProgramCache]: Analyzing trace with hash 263715141, now seen corresponding path program 1 times [2024-11-16 18:14:48,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:48,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755794545] [2024-11-16 18:14:48,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:48,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:49,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:49,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:49,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:49,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:49,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:49,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:49,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:49,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:49,252 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-16 18:14:49,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:49,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755794545] [2024-11-16 18:14:49,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755794545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:14:49,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609532056] [2024-11-16 18:14:49,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:49,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:14:49,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:14:49,254 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 18:14:49,255 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 18:14:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:49,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-16 18:14:49,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:14:49,393 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 68 treesize of output 47 [2024-11-16 18:14:49,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 24 treesize of output 26 [2024-11-16 18:14:49,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2024-11-16 18:14:49,539 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:14:49,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 32 [2024-11-16 18:14:49,598 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-16 18:14:49,598 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 18:14:49,800 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:49,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609532056] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 18:14:49,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 18:14:49,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [21, 11] total 27 [2024-11-16 18:14:49,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590927838] [2024-11-16 18:14:49,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:49,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:14:49,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:49,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:14:49,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=630, Unknown=0, NotChecked=0, Total=702 [2024-11-16 18:14:49,802 INFO L87 Difference]: Start difference. First operand 224 states and 279 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:50,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:50,092 INFO L93 Difference]: Finished difference Result 538 states and 667 transitions. [2024-11-16 18:14:50,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:14:50,093 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 83 [2024-11-16 18:14:50,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:50,094 INFO L225 Difference]: With dead ends: 538 [2024-11-16 18:14:50,094 INFO L226 Difference]: Without dead ends: 317 [2024-11-16 18:14:50,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 174 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=840, Unknown=0, NotChecked=0, Total=930 [2024-11-16 18:14:50,095 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 54 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:50,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 952 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:14:50,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-16 18:14:50,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 103. [2024-11-16 18:14:50,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 91 states have (on average 1.2197802197802199) internal successors, (111), 91 states have internal predecessors, (111), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:50,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 127 transitions. [2024-11-16 18:14:50,106 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 127 transitions. Word has length 83 [2024-11-16 18:14:50,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:50,106 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 127 transitions. [2024-11-16 18:14:50,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:50,107 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 127 transitions. [2024-11-16 18:14:50,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 18:14:50,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:50,108 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:50,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 18:14:50,312 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,SelfDestructingSolverStorable15 [2024-11-16 18:14:50,313 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:50,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:50,313 INFO L85 PathProgramCache]: Analyzing trace with hash 703901040, now seen corresponding path program 1 times [2024-11-16 18:14:50,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:50,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475573274] [2024-11-16 18:14:50,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:50,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:50,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:50,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475573274] [2024-11-16 18:14:50,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475573274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:50,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:50,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:14:50,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920858349] [2024-11-16 18:14:50,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:50,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:14:50,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:50,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:14:50,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:14:50,482 INFO L87 Difference]: Start difference. First operand 103 states and 127 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 18:14:50,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:50,532 INFO L93 Difference]: Finished difference Result 242 states and 298 transitions. [2024-11-16 18:14:50,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:14:50,532 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2024-11-16 18:14:50,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:50,533 INFO L225 Difference]: With dead ends: 242 [2024-11-16 18:14:50,533 INFO L226 Difference]: Without dead ends: 142 [2024-11-16 18:14:50,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:14:50,534 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 47 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:50,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 408 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:14:50,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-16 18:14:50,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 103. [2024-11-16 18:14:50,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 91 states have (on average 1.2087912087912087) internal successors, (110), 91 states have internal predecessors, (110), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 18:14:50,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 126 transitions. [2024-11-16 18:14:50,540 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 126 transitions. Word has length 84 [2024-11-16 18:14:50,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:50,541 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 126 transitions. [2024-11-16 18:14:50,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 18:14:50,541 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 126 transitions. [2024-11-16 18:14:50,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 18:14:50,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:50,542 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:50,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 18:14:50,542 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:50,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:50,542 INFO L85 PathProgramCache]: Analyzing trace with hash 555302059, now seen corresponding path program 1 times [2024-11-16 18:14:50,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:50,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098752971] [2024-11-16 18:14:50,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:50,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:50,816 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:50,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:50,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098752971] [2024-11-16 18:14:50,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098752971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:50,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:50,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:14:50,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640024567] [2024-11-16 18:14:50,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:50,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:14:50,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:50,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:14:50,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:14:50,818 INFO L87 Difference]: Start difference. First operand 103 states and 126 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:50,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:50,912 INFO L93 Difference]: Finished difference Result 281 states and 339 transitions. [2024-11-16 18:14:50,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 18:14:50,912 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 85 [2024-11-16 18:14:50,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:50,913 INFO L225 Difference]: With dead ends: 281 [2024-11-16 18:14:50,913 INFO L226 Difference]: Without dead ends: 181 [2024-11-16 18:14:50,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:14:50,914 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 59 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:50,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 583 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:14:50,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-16 18:14:50,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 169. [2024-11-16 18:14:50,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 148 states have (on average 1.1824324324324325) internal successors, (175), 149 states have internal predecessors, (175), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 18:14:50,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2024-11-16 18:14:50,925 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 85 [2024-11-16 18:14:50,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:50,926 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2024-11-16 18:14:50,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:50,926 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2024-11-16 18:14:50,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 18:14:50,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:50,927 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:50,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 18:14:50,927 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:50,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:50,928 INFO L85 PathProgramCache]: Analyzing trace with hash -470078284, now seen corresponding path program 1 times [2024-11-16 18:14:50,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:50,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951891187] [2024-11-16 18:14:50,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:50,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,132 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:51,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:51,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951891187] [2024-11-16 18:14:51,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951891187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:51,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:51,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:14:51,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913698329] [2024-11-16 18:14:51,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:51,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:14:51,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:51,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:14:51,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:14:51,135 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 18:14:51,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:51,194 INFO L93 Difference]: Finished difference Result 405 states and 489 transitions. [2024-11-16 18:14:51,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:14:51,195 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2024-11-16 18:14:51,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:51,197 INFO L225 Difference]: With dead ends: 405 [2024-11-16 18:14:51,197 INFO L226 Difference]: Without dead ends: 239 [2024-11-16 18:14:51,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:14:51,198 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 37 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:51,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 407 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:14:51,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-11-16 18:14:51,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 179. [2024-11-16 18:14:51,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 158 states have (on average 1.1708860759493671) internal successors, (185), 159 states have internal predecessors, (185), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 18:14:51,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 213 transitions. [2024-11-16 18:14:51,209 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 213 transitions. Word has length 85 [2024-11-16 18:14:51,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:51,210 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 213 transitions. [2024-11-16 18:14:51,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 18:14:51,210 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 213 transitions. [2024-11-16 18:14:51,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 18:14:51,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:51,210 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:51,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 18:14:51,211 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:51,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:51,211 INFO L85 PathProgramCache]: Analyzing trace with hash 488295306, now seen corresponding path program 1 times [2024-11-16 18:14:51,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:51,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906422051] [2024-11-16 18:14:51,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:51,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:51,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:51,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906422051] [2024-11-16 18:14:51,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906422051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:51,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:51,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:14:51,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486378505] [2024-11-16 18:14:51,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:51,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:14:51,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:51,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:14:51,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:14:51,280 INFO L87 Difference]: Start difference. First operand 179 states and 213 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:51,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:51,362 INFO L93 Difference]: Finished difference Result 405 states and 481 transitions. [2024-11-16 18:14:51,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:14:51,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 85 [2024-11-16 18:14:51,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:51,364 INFO L225 Difference]: With dead ends: 405 [2024-11-16 18:14:51,364 INFO L226 Difference]: Without dead ends: 229 [2024-11-16 18:14:51,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 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 18:14:51,364 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 45 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:51,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 437 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:14:51,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-16 18:14:51,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 194. [2024-11-16 18:14:51,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 173 states have (on average 1.1618497109826589) internal successors, (201), 174 states have internal predecessors, (201), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 18:14:51,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 229 transitions. [2024-11-16 18:14:51,376 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 229 transitions. Word has length 85 [2024-11-16 18:14:51,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:51,376 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 229 transitions. [2024-11-16 18:14:51,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:51,377 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 229 transitions. [2024-11-16 18:14:51,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 18:14:51,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:51,377 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:51,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 18:14:51,377 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:51,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:51,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1895441866, now seen corresponding path program 1 times [2024-11-16 18:14:51,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:51,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281435872] [2024-11-16 18:14:51,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:51,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:51,873 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:51,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:51,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281435872] [2024-11-16 18:14:51,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281435872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:51,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:51,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:14:51,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440381919] [2024-11-16 18:14:51,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:51,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:14:51,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:51,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:14:51,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:14:51,875 INFO L87 Difference]: Start difference. First operand 194 states and 229 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:51,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:51,994 INFO L93 Difference]: Finished difference Result 242 states and 285 transitions. [2024-11-16 18:14:51,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:14:51,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 87 [2024-11-16 18:14:51,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:51,996 INFO L225 Difference]: With dead ends: 242 [2024-11-16 18:14:51,997 INFO L226 Difference]: Without dead ends: 239 [2024-11-16 18:14:51,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:14:51,997 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 65 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:51,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 482 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:14:51,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-11-16 18:14:52,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 234. [2024-11-16 18:14:52,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 201 states have (on average 1.1393034825870647) internal successors, (229), 203 states have internal predecessors, (229), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-16 18:14:52,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 273 transitions. [2024-11-16 18:14:52,016 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 273 transitions. Word has length 87 [2024-11-16 18:14:52,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:52,016 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 273 transitions. [2024-11-16 18:14:52,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:52,016 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 273 transitions. [2024-11-16 18:14:52,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 18:14:52,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:52,017 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:52,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 18:14:52,017 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:52,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:52,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1866812715, now seen corresponding path program 1 times [2024-11-16 18:14:52,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:52,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619541785] [2024-11-16 18:14:52,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:52,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,138 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 18:14:52,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:52,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619541785] [2024-11-16 18:14:52,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619541785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:52,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:52,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:14:52,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495501437] [2024-11-16 18:14:52,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:52,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:14:52,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:52,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:14:52,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:14:52,139 INFO L87 Difference]: Start difference. First operand 234 states and 273 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:52,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:52,195 INFO L93 Difference]: Finished difference Result 439 states and 511 transitions. [2024-11-16 18:14:52,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:14:52,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 87 [2024-11-16 18:14:52,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:52,196 INFO L225 Difference]: With dead ends: 439 [2024-11-16 18:14:52,196 INFO L226 Difference]: Without dead ends: 242 [2024-11-16 18:14:52,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:14:52,197 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 46 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:52,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 341 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:14:52,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-16 18:14:52,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2024-11-16 18:14:52,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 207 states have (on average 1.1256038647342994) internal successors, (233), 209 states have internal predecessors, (233), 22 states have call successors, (22), 12 states have call predecessors, (22), 12 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-16 18:14:52,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 277 transitions. [2024-11-16 18:14:52,216 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 277 transitions. Word has length 87 [2024-11-16 18:14:52,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:52,216 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 277 transitions. [2024-11-16 18:14:52,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-16 18:14:52,217 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 277 transitions. [2024-11-16 18:14:52,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 18:14:52,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:52,217 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:52,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 18:14:52,218 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:52,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:52,218 INFO L85 PathProgramCache]: Analyzing trace with hash -124002380, now seen corresponding path program 1 times [2024-11-16 18:14:52,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:52,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97536423] [2024-11-16 18:14:52,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:52,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat