./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/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/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 19:15:20,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 19:15:20,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 19:15:20,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 19:15:20,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 19:15:20,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 19:15:20,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 19:15:20,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 19:15:20,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 19:15:20,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 19:15:20,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 19:15:20,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 19:15:20,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 19:15:20,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 19:15:20,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 19:15:20,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 19:15:20,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 19:15:20,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 19:15:20,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 19:15:20,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 19:15:20,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 19:15:20,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 19:15:20,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 19:15:20,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 19:15:20,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 19:15:20,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 19:15:20,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 19:15:20,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 19:15:20,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 19:15:20,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 19:15:20,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 19:15:20,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 19:15:20,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 19:15:20,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 19:15:20,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 19:15:20,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 19:15:20,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 19:15:20,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 19:15:20,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 19:15:20,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 19:15:20,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 19:15:20,382 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 19:15:20,400 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 19:15:20,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 19:15:20,403 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 19:15:20,403 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 19:15:20,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 19:15:20,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 19:15:20,404 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 19:15:20,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 19:15:20,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 19:15:20,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 19:15:20,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 19:15:20,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 19:15:20,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 19:15:20,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 19:15:20,406 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 19:15:20,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 19:15:20,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 19:15:20,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 19:15:20,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 19:15:20,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:15:20,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 19:15:20,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 19:15:20,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 19:15:20,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 19:15:20,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 19:15:20,408 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 19:15:20,408 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 19:15:20,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 19:15:20,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 19:15:20,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 [2021-11-07 19:15:20,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 19:15:20,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 19:15:20,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 19:15:20,590 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 19:15:20,591 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 19:15:20,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-07 19:15:20,636 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/750e1fa37/a2e63c4bd1e94910bb364c7c0b99b3c6/FLAGc58fa1285 [2021-11-07 19:15:21,307 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 19:15:21,308 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-07 19:15:21,356 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/750e1fa37/a2e63c4bd1e94910bb364c7c0b99b3c6/FLAGc58fa1285 [2021-11-07 19:15:21,617 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/750e1fa37/a2e63c4bd1e94910bb364c7c0b99b3c6 [2021-11-07 19:15:21,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 19:15:21,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 19:15:21,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 19:15:21,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 19:15:21,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 19:15:21,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:15:21" (1/1) ... [2021-11-07 19:15:21,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62d4eeae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:21, skipping insertion in model container [2021-11-07 19:15:21,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:15:21" (1/1) ... [2021-11-07 19:15:21,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 19:15:21,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 19:15:24,803 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2021-11-07 19:15:24,807 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2021-11-07 19:15:24,811 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2021-11-07 19:15:24,812 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2021-11-07 19:15:24,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:15:24,895 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 19:15:25,212 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2021-11-07 19:15:25,213 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2021-11-07 19:15:25,213 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2021-11-07 19:15:25,214 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2021-11-07 19:15:25,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:15:25,429 INFO L208 MainTranslator]: Completed translation [2021-11-07 19:15:25,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:25 WrapperNode [2021-11-07 19:15:25,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 19:15:25,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 19:15:25,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 19:15:25,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 19:15:25,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:25" (1/1) ... [2021-11-07 19:15:25,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:25" (1/1) ... [2021-11-07 19:15:26,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 19:15:26,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 19:15:26,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 19:15:26,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 19:15:26,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:25" (1/1) ... [2021-11-07 19:15:26,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:25" (1/1) ... [2021-11-07 19:15:27,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:25" (1/1) ... [2021-11-07 19:15:27,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:25" (1/1) ... [2021-11-07 19:15:27,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:25" (1/1) ... [2021-11-07 19:15:27,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:25" (1/1) ... [2021-11-07 19:15:28,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:25" (1/1) ... [2021-11-07 19:15:28,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 19:15:28,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 19:15:28,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 19:15:28,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 19:15:28,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:25" (1/1) ... [2021-11-07 19:15:28,439 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:15:28,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 19:15:28,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 19:15:28,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 19:15:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2021-11-07 19:15:28,598 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2021-11-07 19:15:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 19:15:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 19:15:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 19:15:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 19:15:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 19:15:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 19:15:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2021-11-07 19:15:28,599 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2021-11-07 19:15:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2021-11-07 19:15:28,600 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2021-11-07 19:15:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 19:15:28,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 19:15:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2021-11-07 19:15:28,600 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2021-11-07 19:15:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 19:15:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 19:15:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2021-11-07 19:15:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2021-11-07 19:15:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2021-11-07 19:15:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2021-11-07 19:15:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 19:15:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 19:15:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-07 19:15:28,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-07 19:15:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 19:15:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-07 19:15:28,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-07 19:15:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2021-11-07 19:15:28,602 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2021-11-07 19:15:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 19:15:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2021-11-07 19:15:28,603 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2021-11-07 19:15:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 19:15:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 19:15:47,758 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 19:15:47,759 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 19:15:47,759 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 19:15:47,759 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 19:15:47,761 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 19:15:47,761 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 19:15:47,818 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 19:15:47,818 INFO L299 CfgBuilder]: Removed 9691 assume(true) statements. [2021-11-07 19:15:47,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:15:47 BoogieIcfgContainer [2021-11-07 19:15:47,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 19:15:47,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 19:15:47,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 19:15:47,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 19:15:47,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:15:21" (1/3) ... [2021-11-07 19:15:47,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670f8203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:15:47, skipping insertion in model container [2021-11-07 19:15:47,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:25" (2/3) ... [2021-11-07 19:15:47,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670f8203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:15:47, skipping insertion in model container [2021-11-07 19:15:47,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:15:47" (3/3) ... [2021-11-07 19:15:47,833 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-07 19:15:47,836 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 19:15:47,836 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2021-11-07 19:15:47,896 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 19:15:47,903 INFO L339 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 19:15:47,904 INFO L340 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2021-11-07 19:15:47,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 9382 states, 9215 states have (on average 1.3274009766684753) internal successors, (12232), 9256 states have internal predecessors, (12232), 115 states have call successors, (115), 10 states have call predecessors, (115), 10 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2021-11-07 19:15:48,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-07 19:15:48,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:15:48,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:15:48,013 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 19:15:48,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:15:48,017 INFO L85 PathProgramCache]: Analyzing trace with hash -623206203, now seen corresponding path program 1 times [2021-11-07 19:15:48,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:15:48,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574183415] [2021-11-07 19:15:48,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:15:48,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:15:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:15:48,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:15:48,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:15:48,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574183415] [2021-11-07 19:15:48,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574183415] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:15:48,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:15:48,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:15:48,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219023726] [2021-11-07 19:15:48,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:15:48,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:15:48,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:15:48,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:15:48,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:15:48,566 INFO L87 Difference]: Start difference. First operand has 9382 states, 9215 states have (on average 1.3274009766684753) internal successors, (12232), 9256 states have internal predecessors, (12232), 115 states have call successors, (115), 10 states have call predecessors, (115), 10 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:15:50,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:15:50,314 INFO L93 Difference]: Finished difference Result 27424 states and 36462 transitions. [2021-11-07 19:15:50,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:15:50,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-07 19:15:50,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:15:50,385 INFO L225 Difference]: With dead ends: 27424 [2021-11-07 19:15:50,385 INFO L226 Difference]: Without dead ends: 17758 [2021-11-07 19:15:50,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.72ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:15:50,413 INFO L933 BasicCegarLoop]: 12379 mSDtfsCounter, 11729 mSDsluCounter, 12217 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 967.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11729 SdHoareTripleChecker+Valid, 24596 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.76ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1045.63ms IncrementalHoareTripleChecker+Time [2021-11-07 19:15:50,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11729 Valid, 24596 Invalid, 34 Unknown, 0 Unchecked, 61.76ms Time], IncrementalHoareTripleChecker [6 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 1045.63ms Time] [2021-11-07 19:15:50,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17758 states. [2021-11-07 19:15:50,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17758 to 17758. [2021-11-07 19:15:50,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17758 states, 17466 states have (on average 1.2856979274018092) internal successors, (22456), 17507 states have internal predecessors, (22456), 230 states have call successors, (230), 20 states have call predecessors, (230), 20 states have return successors, (230), 230 states have call predecessors, (230), 230 states have call successors, (230) [2021-11-07 19:15:50,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17758 states to 17758 states and 22916 transitions. [2021-11-07 19:15:50,892 INFO L78 Accepts]: Start accepts. Automaton has 17758 states and 22916 transitions. Word has length 90 [2021-11-07 19:15:50,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:15:50,893 INFO L470 AbstractCegarLoop]: Abstraction has 17758 states and 22916 transitions. [2021-11-07 19:15:50,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:15:50,894 INFO L276 IsEmpty]: Start isEmpty. Operand 17758 states and 22916 transitions. [2021-11-07 19:15:50,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-07 19:15:50,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:15:50,899 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:15:50,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 19:15:50,900 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 19:15:50,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:15:50,901 INFO L85 PathProgramCache]: Analyzing trace with hash -968367872, now seen corresponding path program 1 times [2021-11-07 19:15:50,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:15:50,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547172448] [2021-11-07 19:15:50,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:15:50,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:15:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:15:51,069 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:15:51,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:15:51,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547172448] [2021-11-07 19:15:51,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547172448] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:15:51,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:15:51,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:15:51,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218990608] [2021-11-07 19:15:51,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:15:51,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:15:51,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:15:51,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:15:51,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:15:51,072 INFO L87 Difference]: Start difference. First operand 17758 states and 22916 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:15:52,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:15:52,476 INFO L93 Difference]: Finished difference Result 35318 states and 45614 transitions. [2021-11-07 19:15:52,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:15:52,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-11-07 19:15:52,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:15:52,559 INFO L225 Difference]: With dead ends: 35318 [2021-11-07 19:15:52,560 INFO L226 Difference]: Without dead ends: 26428 [2021-11-07 19:15:52,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:15:52,598 INFO L933 BasicCegarLoop]: 22907 mSDtfsCounter, 11233 mSDsluCounter, 11654 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 900.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11233 SdHoareTripleChecker+Valid, 34561 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.96ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 975.50ms IncrementalHoareTripleChecker+Time [2021-11-07 19:15:52,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11233 Valid, 34561 Invalid, 30 Unknown, 0 Unchecked, 43.96ms Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 975.50ms Time] [2021-11-07 19:15:52,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26428 states. [2021-11-07 19:15:53,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26428 to 26428. [2021-11-07 19:15:53,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26428 states, 26011 states have (on average 1.2863403944485026) internal successors, (33459), 26052 states have internal predecessors, (33459), 345 states have call successors, (345), 30 states have call predecessors, (345), 30 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2021-11-07 19:15:53,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26428 states to 26428 states and 34149 transitions. [2021-11-07 19:15:53,273 INFO L78 Accepts]: Start accepts. Automaton has 26428 states and 34149 transitions. Word has length 119 [2021-11-07 19:15:53,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:15:53,274 INFO L470 AbstractCegarLoop]: Abstraction has 26428 states and 34149 transitions. [2021-11-07 19:15:53,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:15:53,275 INFO L276 IsEmpty]: Start isEmpty. Operand 26428 states and 34149 transitions. [2021-11-07 19:15:53,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-07 19:15:53,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:15:53,281 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:15:53,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 19:15:53,282 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 19:15:53,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:15:53,283 INFO L85 PathProgramCache]: Analyzing trace with hash 2046735746, now seen corresponding path program 1 times [2021-11-07 19:15:53,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:15:53,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020191367] [2021-11-07 19:15:53,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:15:53,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:15:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:15:53,487 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:15:53,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:15:53,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020191367] [2021-11-07 19:15:53,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020191367] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:15:53,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:15:53,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:15:53,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561330605] [2021-11-07 19:15:53,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:15:53,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:15:53,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:15:53,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:15:53,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:15:53,492 INFO L87 Difference]: Start difference. First operand 26428 states and 34149 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:15:55,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:15:56,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:15:56,231 INFO L93 Difference]: Finished difference Result 52659 states and 68082 transitions. [2021-11-07 19:15:56,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:15:56,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-11-07 19:15:56,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:15:56,312 INFO L225 Difference]: With dead ends: 52659 [2021-11-07 19:15:56,313 INFO L226 Difference]: Without dead ends: 35099 [2021-11-07 19:15:56,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:15:56,360 INFO L933 BasicCegarLoop]: 22907 mSDtfsCounter, 11287 mSDsluCounter, 11601 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2055.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11287 SdHoareTripleChecker+Valid, 34508 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.69ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2158.99ms IncrementalHoareTripleChecker+Time [2021-11-07 19:15:56,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11287 Valid, 34508 Invalid, 32 Unknown, 0 Unchecked, 30.69ms Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2158.99ms Time] [2021-11-07 19:15:56,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35099 states. [2021-11-07 19:15:56,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35099 to 35099. [2021-11-07 19:15:56,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35099 states, 34557 states have (on average 1.2866568278496398) internal successors, (44463), 34598 states have internal predecessors, (44463), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-07 19:15:57,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35099 states to 35099 states and 45383 transitions. [2021-11-07 19:15:57,213 INFO L78 Accepts]: Start accepts. Automaton has 35099 states and 45383 transitions. Word has length 119 [2021-11-07 19:15:57,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:15:57,213 INFO L470 AbstractCegarLoop]: Abstraction has 35099 states and 45383 transitions. [2021-11-07 19:15:57,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:15:57,214 INFO L276 IsEmpty]: Start isEmpty. Operand 35099 states and 45383 transitions. [2021-11-07 19:15:57,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-07 19:15:57,218 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:15:57,218 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:15:57,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 19:15:57,219 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 19:15:57,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:15:57,220 INFO L85 PathProgramCache]: Analyzing trace with hash 764247360, now seen corresponding path program 1 times [2021-11-07 19:15:57,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:15:57,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830888320] [2021-11-07 19:15:57,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:15:57,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:15:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:15:57,510 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 19:15:57,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:15:57,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830888320] [2021-11-07 19:15:57,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830888320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:15:57,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:15:57,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:15:57,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339585866] [2021-11-07 19:15:57,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:15:57,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:15:57,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:15:57,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:15:57,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:15:57,515 INFO L87 Difference]: Start difference. First operand 35099 states and 45383 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:15:58,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:15:58,106 INFO L93 Difference]: Finished difference Result 35099 states and 45383 transitions. [2021-11-07 19:15:58,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:15:58,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-11-07 19:15:58,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:15:58,180 INFO L225 Difference]: With dead ends: 35099 [2021-11-07 19:15:58,181 INFO L226 Difference]: Without dead ends: 35093 [2021-11-07 19:15:58,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.46ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:15:58,197 INFO L933 BasicCegarLoop]: 11668 mSDtfsCounter, 11569 mSDsluCounter, 11554 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11569 SdHoareTripleChecker+Valid, 23222 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.92ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98.29ms IncrementalHoareTripleChecker+Time [2021-11-07 19:15:58,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11569 Valid, 23222 Invalid, 124 Unknown, 0 Unchecked, 29.92ms Time], IncrementalHoareTripleChecker [40 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 98.29ms Time] [2021-11-07 19:15:58,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35093 states. [2021-11-07 19:15:58,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35093 to 35093. [2021-11-07 19:15:58,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35093 states, 34554 states have (on average 1.2865948949470394) internal successors, (44457), 34592 states have internal predecessors, (44457), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-07 19:15:58,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35093 states to 35093 states and 45377 transitions. [2021-11-07 19:15:58,911 INFO L78 Accepts]: Start accepts. Automaton has 35093 states and 45377 transitions. Word has length 120 [2021-11-07 19:15:58,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:15:58,912 INFO L470 AbstractCegarLoop]: Abstraction has 35093 states and 45377 transitions. [2021-11-07 19:15:58,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:15:58,913 INFO L276 IsEmpty]: Start isEmpty. Operand 35093 states and 45377 transitions. [2021-11-07 19:15:58,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-07 19:15:58,917 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:15:58,917 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:15:58,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 19:15:58,917 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 19:15:58,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:15:58,918 INFO L85 PathProgramCache]: Analyzing trace with hash 2485027, now seen corresponding path program 1 times [2021-11-07 19:15:58,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:15:58,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419570919] [2021-11-07 19:15:58,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:15:58,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:15:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:15:59,216 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 19:15:59,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:15:59,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419570919] [2021-11-07 19:15:59,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419570919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:15:59,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:15:59,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:15:59,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776811516] [2021-11-07 19:15:59,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:15:59,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:15:59,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:15:59,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:15:59,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:15:59,222 INFO L87 Difference]: Start difference. First operand 35093 states and 45377 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:15:59,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:15:59,979 INFO L93 Difference]: Finished difference Result 35093 states and 45377 transitions. [2021-11-07 19:15:59,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:15:59,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-11-07 19:15:59,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:16:00,050 INFO L225 Difference]: With dead ends: 35093 [2021-11-07 19:16:00,050 INFO L226 Difference]: Without dead ends: 35087 [2021-11-07 19:16:00,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.99ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:16:00,061 INFO L933 BasicCegarLoop]: 11662 mSDtfsCounter, 11558 mSDsluCounter, 11551 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11558 SdHoareTripleChecker+Valid, 23213 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.33ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.91ms IncrementalHoareTripleChecker+Time [2021-11-07 19:16:00,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11558 Valid, 23213 Invalid, 124 Unknown, 0 Unchecked, 21.33ms Time], IncrementalHoareTripleChecker [43 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 95.91ms Time] [2021-11-07 19:16:00,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35087 states. [2021-11-07 19:16:00,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35087 to 35087. [2021-11-07 19:16:00,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35087 states, 34551 states have (on average 1.2865329512893984) internal successors, (44451), 34586 states have internal predecessors, (44451), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-07 19:16:00,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35087 states to 35087 states and 45371 transitions. [2021-11-07 19:16:00,758 INFO L78 Accepts]: Start accepts. Automaton has 35087 states and 45371 transitions. Word has length 122 [2021-11-07 19:16:00,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:16:00,759 INFO L470 AbstractCegarLoop]: Abstraction has 35087 states and 45371 transitions. [2021-11-07 19:16:00,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:16:00,759 INFO L276 IsEmpty]: Start isEmpty. Operand 35087 states and 45371 transitions. [2021-11-07 19:16:00,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-07 19:16:00,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:16:00,766 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:16:00,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 19:16:00,766 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 19:16:00,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:16:00,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1906676346, now seen corresponding path program 1 times [2021-11-07 19:16:00,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:16:00,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633635689] [2021-11-07 19:16:00,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:16:00,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:16:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:16:00,977 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 19:16:00,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:16:00,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633635689] [2021-11-07 19:16:00,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633635689] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:16:00,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:16:00,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:16:00,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634443670] [2021-11-07 19:16:00,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:16:00,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:16:00,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:16:00,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:16:00,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:16:00,979 INFO L87 Difference]: Start difference. First operand 35087 states and 45371 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:16:01,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:16:01,826 INFO L93 Difference]: Finished difference Result 35087 states and 45371 transitions. [2021-11-07 19:16:01,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:16:01,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2021-11-07 19:16:01,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:16:01,895 INFO L225 Difference]: With dead ends: 35087 [2021-11-07 19:16:01,896 INFO L226 Difference]: Without dead ends: 35081 [2021-11-07 19:16:01,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.11ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:16:01,908 INFO L933 BasicCegarLoop]: 11656 mSDtfsCounter, 11550 mSDsluCounter, 11548 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 202.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11550 SdHoareTripleChecker+Valid, 23204 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.00ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 221.01ms IncrementalHoareTripleChecker+Time [2021-11-07 19:16:01,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11550 Valid, 23204 Invalid, 121 Unknown, 0 Unchecked, 21.00ms Time], IncrementalHoareTripleChecker [43 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 221.01ms Time] [2021-11-07 19:16:01,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35081 states. [2021-11-07 19:16:02,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35081 to 35081. [2021-11-07 19:16:02,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35081 states, 34548 states have (on average 1.2864709968739145) internal successors, (44445), 34580 states have internal predecessors, (44445), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-07 19:16:02,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35081 states to 35081 states and 45365 transitions. [2021-11-07 19:16:02,674 INFO L78 Accepts]: Start accepts. Automaton has 35081 states and 45365 transitions. Word has length 124 [2021-11-07 19:16:02,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:16:02,674 INFO L470 AbstractCegarLoop]: Abstraction has 35081 states and 45365 transitions. [2021-11-07 19:16:02,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:16:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 35081 states and 45365 transitions. [2021-11-07 19:16:02,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-07 19:16:02,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:16:02,682 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:16:02,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 19:16:02,682 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 19:16:02,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:16:02,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1635247209, now seen corresponding path program 1 times [2021-11-07 19:16:02,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:16:02,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10672053] [2021-11-07 19:16:02,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:16:02,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:16:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:16:02,885 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 19:16:02,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:16:02,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10672053] [2021-11-07 19:16:02,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10672053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:16:02,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:16:02,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:16:02,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741659063] [2021-11-07 19:16:02,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:16:02,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:16:02,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:16:02,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:16:02,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:16:02,888 INFO L87 Difference]: Start difference. First operand 35081 states and 45365 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:16:03,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:16:03,604 INFO L93 Difference]: Finished difference Result 35081 states and 45365 transitions. [2021-11-07 19:16:03,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:16:03,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-07 19:16:03,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:16:03,666 INFO L225 Difference]: With dead ends: 35081 [2021-11-07 19:16:03,666 INFO L226 Difference]: Without dead ends: 35075 [2021-11-07 19:16:03,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.25ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:16:03,677 INFO L933 BasicCegarLoop]: 11650 mSDtfsCounter, 11542 mSDsluCounter, 11545 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 157.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11542 SdHoareTripleChecker+Valid, 23195 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.17ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 172.19ms IncrementalHoareTripleChecker+Time [2021-11-07 19:16:03,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11542 Valid, 23195 Invalid, 118 Unknown, 0 Unchecked, 18.17ms Time], IncrementalHoareTripleChecker [43 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 172.19ms Time] [2021-11-07 19:16:03,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35075 states. [2021-11-07 19:16:04,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35075 to 35075. [2021-11-07 19:16:04,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35075 states, 34545 states have (on average 1.2864090316977854) internal successors, (44439), 34574 states have internal predecessors, (44439), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-07 19:16:04,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35075 states to 35075 states and 45359 transitions. [2021-11-07 19:16:04,663 INFO L78 Accepts]: Start accepts. Automaton has 35075 states and 45359 transitions. Word has length 126 [2021-11-07 19:16:04,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:16:04,663 INFO L470 AbstractCegarLoop]: Abstraction has 35075 states and 45359 transitions. [2021-11-07 19:16:04,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:16:04,663 INFO L276 IsEmpty]: Start isEmpty. Operand 35075 states and 45359 transitions. [2021-11-07 19:16:04,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-07 19:16:04,672 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:16:04,674 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:16:04,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 19:16:04,674 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 19:16:04,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:16:04,675 INFO L85 PathProgramCache]: Analyzing trace with hash -485281844, now seen corresponding path program 1 times [2021-11-07 19:16:04,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:16:04,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257381819] [2021-11-07 19:16:04,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:16:04,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:16:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:16:04,890 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 19:16:04,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:16:04,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257381819] [2021-11-07 19:16:04,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257381819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:16:04,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:16:04,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:16:04,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576788999] [2021-11-07 19:16:04,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:16:04,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:16:04,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:16:04,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:16:04,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:16:04,892 INFO L87 Difference]: Start difference. First operand 35075 states and 45359 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:16:05,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:16:05,534 INFO L93 Difference]: Finished difference Result 35075 states and 45359 transitions. [2021-11-07 19:16:05,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:16:05,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-11-07 19:16:05,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:16:05,606 INFO L225 Difference]: With dead ends: 35075 [2021-11-07 19:16:05,606 INFO L226 Difference]: Without dead ends: 35069 [2021-11-07 19:16:05,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.26ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:16:05,627 INFO L933 BasicCegarLoop]: 11644 mSDtfsCounter, 11534 mSDsluCounter, 11542 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11534 SdHoareTripleChecker+Valid, 23186 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.18ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.28ms IncrementalHoareTripleChecker+Time [2021-11-07 19:16:05,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11534 Valid, 23186 Invalid, 115 Unknown, 0 Unchecked, 19.18ms Time], IncrementalHoareTripleChecker [43 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 69.28ms Time] [2021-11-07 19:16:05,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35069 states. [2021-11-07 19:16:06,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35069 to 35069. [2021-11-07 19:16:06,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35069 states, 34542 states have (on average 1.2863470557582073) internal successors, (44433), 34568 states have internal predecessors, (44433), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-07 19:16:06,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35069 states to 35069 states and 45353 transitions. [2021-11-07 19:16:06,575 INFO L78 Accepts]: Start accepts. Automaton has 35069 states and 45353 transitions. Word has length 128 [2021-11-07 19:16:06,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:16:06,576 INFO L470 AbstractCegarLoop]: Abstraction has 35069 states and 45353 transitions. [2021-11-07 19:16:06,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:16:06,576 INFO L276 IsEmpty]: Start isEmpty. Operand 35069 states and 45353 transitions. [2021-11-07 19:16:06,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-07 19:16:06,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:16:06,584 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:16:06,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 19:16:06,584 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 19:16:06,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:16:06,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1795764143, now seen corresponding path program 1 times [2021-11-07 19:16:06,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:16:06,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246692919] [2021-11-07 19:16:06,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:16:06,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:16:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:16:06,801 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 19:16:06,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:16:06,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246692919] [2021-11-07 19:16:06,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246692919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:16:06,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:16:06,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:16:06,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476435349] [2021-11-07 19:16:06,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:16:06,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:16:06,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:16:06,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:16:06,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:16:06,806 INFO L87 Difference]: Start difference. First operand 35069 states and 45353 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:16:07,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:16:07,609 INFO L93 Difference]: Finished difference Result 35069 states and 45353 transitions. [2021-11-07 19:16:07,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:16:07,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-11-07 19:16:07,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:16:07,678 INFO L225 Difference]: With dead ends: 35069 [2021-11-07 19:16:07,678 INFO L226 Difference]: Without dead ends: 35063 [2021-11-07 19:16:07,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.52ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:16:07,699 INFO L933 BasicCegarLoop]: 11638 mSDtfsCounter, 11526 mSDsluCounter, 11539 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11526 SdHoareTripleChecker+Valid, 23177 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.05ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.01ms IncrementalHoareTripleChecker+Time [2021-11-07 19:16:07,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11526 Valid, 23177 Invalid, 112 Unknown, 0 Unchecked, 20.05ms Time], IncrementalHoareTripleChecker [43 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 80.01ms Time] [2021-11-07 19:16:07,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35063 states. [2021-11-07 19:16:08,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35063 to 35063. [2021-11-07 19:16:08,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35063 states, 34539 states have (on average 1.2862850690523755) internal successors, (44427), 34562 states have internal predecessors, (44427), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-07 19:16:08,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35063 states to 35063 states and 45347 transitions. [2021-11-07 19:16:08,762 INFO L78 Accepts]: Start accepts. Automaton has 35063 states and 45347 transitions. Word has length 130 [2021-11-07 19:16:08,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:16:08,764 INFO L470 AbstractCegarLoop]: Abstraction has 35063 states and 45347 transitions. [2021-11-07 19:16:08,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:16:08,764 INFO L276 IsEmpty]: Start isEmpty. Operand 35063 states and 45347 transitions. [2021-11-07 19:16:08,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-07 19:16:08,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:16:08,771 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:16:08,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 19:16:08,771 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 19:16:08,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:16:08,771 INFO L85 PathProgramCache]: Analyzing trace with hash -847330286, now seen corresponding path program 1 times [2021-11-07 19:16:08,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:16:08,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818064217] [2021-11-07 19:16:08,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:16:08,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:16:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:16:08,954 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 19:16:08,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:16:08,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818064217] [2021-11-07 19:16:08,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818064217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:16:08,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:16:08,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:16:08,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399048500] [2021-11-07 19:16:08,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:16:08,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:16:08,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:16:08,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:16:08,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:16:08,957 INFO L87 Difference]: Start difference. First operand 35063 states and 45347 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:16:09,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:16:09,751 INFO L93 Difference]: Finished difference Result 35063 states and 45347 transitions. [2021-11-07 19:16:09,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:16:09,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-11-07 19:16:09,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:16:09,814 INFO L225 Difference]: With dead ends: 35063 [2021-11-07 19:16:09,814 INFO L226 Difference]: Without dead ends: 35057 [2021-11-07 19:16:09,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.33ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:16:09,831 INFO L933 BasicCegarLoop]: 11632 mSDtfsCounter, 11518 mSDsluCounter, 11536 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11518 SdHoareTripleChecker+Valid, 23168 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.28ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.89ms IncrementalHoareTripleChecker+Time [2021-11-07 19:16:09,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11518 Valid, 23168 Invalid, 109 Unknown, 0 Unchecked, 20.28ms Time], IncrementalHoareTripleChecker [43 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 66.89ms Time] [2021-11-07 19:16:09,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35057 states. [2021-11-07 19:16:10,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35057 to 35057. [2021-11-07 19:16:10,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35057 states, 34536 states have (on average 1.2862230715774843) internal successors, (44421), 34556 states have internal predecessors, (44421), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-07 19:16:10,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35057 states to 35057 states and 45341 transitions. [2021-11-07 19:16:10,788 INFO L78 Accepts]: Start accepts. Automaton has 35057 states and 45341 transitions. Word has length 132 [2021-11-07 19:16:10,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:16:10,789 INFO L470 AbstractCegarLoop]: Abstraction has 35057 states and 45341 transitions. [2021-11-07 19:16:10,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:16:10,789 INFO L276 IsEmpty]: Start isEmpty. Operand 35057 states and 45341 transitions. [2021-11-07 19:16:10,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-07 19:16:10,796 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:16:10,796 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:16:10,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 19:16:10,797 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 19:16:10,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:16:10,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1759562997, now seen corresponding path program 1 times [2021-11-07 19:16:10,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:16:10,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336735822] [2021-11-07 19:16:10,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:16:10,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:16:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:16:11,094 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 19:16:11,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:16:11,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336735822] [2021-11-07 19:16:11,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336735822] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:16:11,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:16:11,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:16:11,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142415953] [2021-11-07 19:16:11,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:16:11,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:16:11,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:16:11,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:16:11,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:16:11,096 INFO L87 Difference]: Start difference. First operand 35057 states and 45341 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:16:11,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:16:11,831 INFO L93 Difference]: Finished difference Result 35057 states and 45341 transitions. [2021-11-07 19:16:11,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:16:11,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-07 19:16:11,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:16:11,889 INFO L225 Difference]: With dead ends: 35057 [2021-11-07 19:16:11,889 INFO L226 Difference]: Without dead ends: 35051 [2021-11-07 19:16:11,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.19ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:16:11,903 INFO L933 BasicCegarLoop]: 11626 mSDtfsCounter, 11510 mSDsluCounter, 11533 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11510 SdHoareTripleChecker+Valid, 23159 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.09ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.25ms IncrementalHoareTripleChecker+Time [2021-11-07 19:16:11,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11510 Valid, 23159 Invalid, 106 Unknown, 0 Unchecked, 19.09ms Time], IncrementalHoareTripleChecker [43 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 70.25ms Time] [2021-11-07 19:16:11,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35051 states. [2021-11-07 19:16:12,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35051 to 35051. [2021-11-07 19:16:12,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35051 states, 34533 states have (on average 1.2861610633307272) internal successors, (44415), 34550 states have internal predecessors, (44415), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-07 19:16:12,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35051 states to 35051 states and 45335 transitions. [2021-11-07 19:16:12,924 INFO L78 Accepts]: Start accepts. Automaton has 35051 states and 45335 transitions. Word has length 134 [2021-11-07 19:16:12,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:16:12,925 INFO L470 AbstractCegarLoop]: Abstraction has 35051 states and 45335 transitions. [2021-11-07 19:16:12,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:16:12,925 INFO L276 IsEmpty]: Start isEmpty. Operand 35051 states and 45335 transitions. [2021-11-07 19:16:12,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-07 19:16:12,933 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:16:12,933 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:16:12,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 19:16:12,934 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 19:16:12,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:16:12,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1276892584, now seen corresponding path program 1 times [2021-11-07 19:16:12,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:16:12,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550896367] [2021-11-07 19:16:12,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:16:12,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:16:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:16:13,153 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 19:16:13,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:16:13,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550896367] [2021-11-07 19:16:13,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550896367] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:16:13,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:16:13,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:16:13,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983784707] [2021-11-07 19:16:13,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:16:13,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:16:13,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:16:13,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:16:13,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:16:13,156 INFO L87 Difference]: Start difference. First operand 35051 states and 45335 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:16:14,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:16:14,039 INFO L93 Difference]: Finished difference Result 35051 states and 45335 transitions. [2021-11-07 19:16:14,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:16:14,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-11-07 19:16:14,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:16:14,101 INFO L225 Difference]: With dead ends: 35051 [2021-11-07 19:16:14,101 INFO L226 Difference]: Without dead ends: 35045 [2021-11-07 19:16:14,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.74ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:16:14,121 INFO L933 BasicCegarLoop]: 11620 mSDtfsCounter, 11502 mSDsluCounter, 11530 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11502 SdHoareTripleChecker+Valid, 23150 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.22ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.05ms IncrementalHoareTripleChecker+Time [2021-11-07 19:16:14,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11502 Valid, 23150 Invalid, 103 Unknown, 0 Unchecked, 21.22ms Time], IncrementalHoareTripleChecker [43 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 76.05ms Time] [2021-11-07 19:16:14,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35045 states. [2021-11-07 19:16:14,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35045 to 35045. [2021-11-07 19:16:14,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35045 states, 34530 states have (on average 1.2860990443092963) internal successors, (44409), 34544 states have internal predecessors, (44409), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-07 19:16:15,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35045 states to 35045 states and 45329 transitions. [2021-11-07 19:16:15,013 INFO L78 Accepts]: Start accepts. Automaton has 35045 states and 45329 transitions. Word has length 136 [2021-11-07 19:16:15,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:16:15,014 INFO L470 AbstractCegarLoop]: Abstraction has 35045 states and 45329 transitions. [2021-11-07 19:16:15,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:16:15,014 INFO L276 IsEmpty]: Start isEmpty. Operand 35045 states and 45329 transitions. [2021-11-07 19:16:15,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-07 19:16:15,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:16:15,023 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:16:15,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 19:16:15,023 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 19:16:15,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:16:15,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1267055675, now seen corresponding path program 1 times [2021-11-07 19:16:15,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:16:15,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874909121] [2021-11-07 19:16:15,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:16:15,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:16:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:16:15,212 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 19:16:15,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:16:15,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874909121] [2021-11-07 19:16:15,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874909121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:16:15,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:16:15,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:16:15,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885275581] [2021-11-07 19:16:15,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:16:15,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:16:15,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:16:15,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:16:15,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:16:15,214 INFO L87 Difference]: Start difference. First operand 35045 states and 45329 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:16:16,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:16:16,079 INFO L93 Difference]: Finished difference Result 35045 states and 45329 transitions. [2021-11-07 19:16:16,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:16:16,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-11-07 19:16:16,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:16:16,143 INFO L225 Difference]: With dead ends: 35045 [2021-11-07 19:16:16,143 INFO L226 Difference]: Without dead ends: 35039 [2021-11-07 19:16:16,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.83ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:16:16,162 INFO L933 BasicCegarLoop]: 11614 mSDtfsCounter, 11494 mSDsluCounter, 11527 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11494 SdHoareTripleChecker+Valid, 23141 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.24ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.66ms IncrementalHoareTripleChecker+Time [2021-11-07 19:16:16,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11494 Valid, 23141 Invalid, 100 Unknown, 0 Unchecked, 20.24ms Time], IncrementalHoareTripleChecker [43 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 86.66ms Time] [2021-11-07 19:16:16,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35039 states.