./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.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 36bb93ca3621bc77a2fce568a30c9f1e07b847a50c59f68bc973979594911c40 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 19:59:36,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 19:59:36,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 19:59:36,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 19:59:36,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 19:59:36,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 19:59:36,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 19:59:36,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 19:59:36,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 19:59:36,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 19:59:36,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 19:59:36,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 19:59:36,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 19:59:36,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 19:59:36,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 19:59:36,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 19:59:36,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 19:59:36,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 19:59:36,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 19:59:36,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 19:59:36,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 19:59:36,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 19:59:36,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 19:59:36,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 19:59:36,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 19:59:36,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 19:59:36,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 19:59:36,244 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 19:59:36,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 19:59:36,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 19:59:36,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 19:59:36,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 19:59:36,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 19:59:36,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 19:59:36,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 19:59:36,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 19:59:36,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 19:59:36,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 19:59:36,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 19:59:36,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 19:59:36,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 19:59:36,252 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 19:59:36,281 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 19:59:36,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 19:59:36,282 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 19:59:36,282 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 19:59:36,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 19:59:36,284 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 19:59:36,284 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 19:59:36,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 19:59:36,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 19:59:36,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 19:59:36,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 19:59:36,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 19:59:36,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 19:59:36,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 19:59:36,286 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 19:59:36,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 19:59:36,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 19:59:36,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 19:59:36,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 19:59:36,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:59:36,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 19:59:36,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 19:59:36,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 19:59:36,288 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 19:59:36,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 19:59:36,288 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 19:59:36,288 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 19:59:36,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 19:59:36,289 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 19:59:36,289 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36bb93ca3621bc77a2fce568a30c9f1e07b847a50c59f68bc973979594911c40 [2021-11-05 19:59:36,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 19:59:36,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 19:59:36,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 19:59:36,582 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 19:59:36,582 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 19:59:36,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2021-11-05 19:59:36,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8336c6664/d7b41cf2dcdb4cc190711caeb03756a6/FLAG80c780fa1 [2021-11-05 19:59:37,299 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 19:59:37,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2021-11-05 19:59:37,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8336c6664/d7b41cf2dcdb4cc190711caeb03756a6/FLAG80c780fa1 [2021-11-05 19:59:37,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8336c6664/d7b41cf2dcdb4cc190711caeb03756a6 [2021-11-05 19:59:37,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 19:59:37,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 19:59:37,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 19:59:37,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 19:59:37,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 19:59:37,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:59:37" (1/1) ... [2021-11-05 19:59:37,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c74cf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:59:37, skipping insertion in model container [2021-11-05 19:59:37,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:59:37" (1/1) ... [2021-11-05 19:59:37,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 19:59:37,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 19:59:39,869 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376704,376717] [2021-11-05 19:59:39,872 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376849,376862] [2021-11-05 19:59:39,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:59:39,943 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 19:59:40,278 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376704,376717] [2021-11-05 19:59:40,279 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-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376849,376862] [2021-11-05 19:59:40,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:59:40,461 INFO L208 MainTranslator]: Completed translation [2021-11-05 19:59:40,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:59:40 WrapperNode [2021-11-05 19:59:40,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 19:59:40,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 19:59:40,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 19:59:40,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 19:59:40,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:59:40" (1/1) ... [2021-11-05 19:59:40,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:59:40" (1/1) ... [2021-11-05 19:59:41,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 19:59:41,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 19:59:41,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 19:59:41,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 19:59:41,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:59:40" (1/1) ... [2021-11-05 19:59:41,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:59:40" (1/1) ... [2021-11-05 19:59:41,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:59:40" (1/1) ... [2021-11-05 19:59:41,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:59:40" (1/1) ... [2021-11-05 19:59:41,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:59:40" (1/1) ... [2021-11-05 19:59:41,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:59:40" (1/1) ... [2021-11-05 19:59:41,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:59:40" (1/1) ... [2021-11-05 19:59:41,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 19:59:41,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 19:59:41,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 19:59:41,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 19:59:41,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:59:40" (1/1) ... [2021-11-05 19:59:41,936 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:59:41,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:59:41,983 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) [2021-11-05 19:59:42,008 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 [2021-11-05 19:59:42,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 19:59:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 19:59:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 19:59:42,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 19:59:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 19:59:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 19:59:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 19:59:42,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 19:59:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 19:59:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 19:59:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 19:59:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 19:59:42,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 19:59:42,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 19:59:42,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:04:55,520 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 20:04:55,520 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 20:04:55,521 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:04:55,521 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:04:55,523 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:04:55,545 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:04:55,546 INFO L299 CfgBuilder]: Removed 5622 assume(true) statements. [2021-11-05 20:04:55,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:04:55 BoogieIcfgContainer [2021-11-05 20:04:55,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:04:55,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:04:55,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:04:55,556 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:04:55,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:59:37" (1/3) ... [2021-11-05 20:04:55,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eec661e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:04:55, skipping insertion in model container [2021-11-05 20:04:55,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:59:40" (2/3) ... [2021-11-05 20:04:55,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eec661e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:04:55, skipping insertion in model container [2021-11-05 20:04:55,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:04:55" (3/3) ... [2021-11-05 20:04:55,559 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2021-11-05 20:04:55,563 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:04:55,564 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-05 20:04:55,617 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:04:55,622 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 [2021-11-05 20:04:55,622 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-05 20:04:55,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 5242 states, 5228 states have (on average 1.3414307574598316) internal successors, (7013), 5241 states have internal predecessors, (7013), 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) [2021-11-05 20:04:55,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-05 20:04:55,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:04:55,704 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] [2021-11-05 20:04:55,705 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:04:55,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:04:55,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1610179768, now seen corresponding path program 1 times [2021-11-05 20:04:55,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:04:55,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131830704] [2021-11-05 20:04:55,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:04:55,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:04:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:04:56,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:04:56,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:04:56,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131830704] [2021-11-05 20:04:56,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131830704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:04:56,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:04:56,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:04:56,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006767464] [2021-11-05 20:04:56,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:04:56,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:04:56,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:04:56,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:04:56,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:04:56,595 INFO L87 Difference]: Start difference. First operand has 5242 states, 5228 states have (on average 1.3414307574598316) internal successors, (7013), 5241 states have internal predecessors, (7013), 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) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-05 20:04:58,710 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:04:59,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:04:59,315 INFO L93 Difference]: Finished difference Result 13267 states and 17767 transitions. [2021-11-05 20:04:59,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:04:59,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 42 [2021-11-05 20:04:59,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:04:59,354 INFO L225 Difference]: With dead ends: 13267 [2021-11-05 20:04:59,355 INFO L226 Difference]: Without dead ends: 7806 [2021-11-05 20:04:59,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.15ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:04:59,370 INFO L933 BasicCegarLoop]: 6754 mSDtfsCounter, 6487 mSDsluCounter, 3995 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2267.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6487 SdHoareTripleChecker+Valid, 10749 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.36ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2427.94ms IncrementalHoareTripleChecker+Time [2021-11-05 20:04:59,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6487 Valid, 10749 Invalid, 75 Unknown, 0 Unchecked, 26.36ms Time], IncrementalHoareTripleChecker [23 Valid, 51 Invalid, 1 Unknown, 0 Unchecked, 2427.94ms Time] [2021-11-05 20:04:59,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7806 states. [2021-11-05 20:04:59,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7806 to 7195. [2021-11-05 20:04:59,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7195 states, 7181 states have (on average 1.30218632502437) internal successors, (9351), 7194 states have internal predecessors, (9351), 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) [2021-11-05 20:04:59,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7195 states to 7195 states and 9351 transitions. [2021-11-05 20:04:59,590 INFO L78 Accepts]: Start accepts. Automaton has 7195 states and 9351 transitions. Word has length 42 [2021-11-05 20:04:59,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:04:59,590 INFO L470 AbstractCegarLoop]: Abstraction has 7195 states and 9351 transitions. [2021-11-05 20:04:59,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-05 20:04:59,591 INFO L276 IsEmpty]: Start isEmpty. Operand 7195 states and 9351 transitions. [2021-11-05 20:04:59,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-05 20:04:59,593 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:04:59,593 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] [2021-11-05 20:04:59,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:04:59,593 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:04:59,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:04:59,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1855051487, now seen corresponding path program 1 times [2021-11-05 20:04:59,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:04:59,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49270849] [2021-11-05 20:04:59,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:04:59,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:04:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:04:59,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:04:59,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:04:59,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49270849] [2021-11-05 20:04:59,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49270849] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:04:59,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:04:59,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:04:59,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537620671] [2021-11-05 20:04:59,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:04:59,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:04:59,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:04:59,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:04:59,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:04:59,981 INFO L87 Difference]: Start difference. First operand 7195 states and 9351 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2021-11-05 20:05:02,065 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:05:02,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:02,601 INFO L93 Difference]: Finished difference Result 16256 states and 21112 transitions. [2021-11-05 20:05:02,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:02,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2021-11-05 20:05:02,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:02,632 INFO L225 Difference]: With dead ends: 16256 [2021-11-05 20:05:02,633 INFO L226 Difference]: Without dead ends: 9105 [2021-11-05 20:05:02,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.37ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:05:02,648 INFO L933 BasicCegarLoop]: 6687 mSDtfsCounter, 1906 mSDsluCounter, 6462 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2262.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1906 SdHoareTripleChecker+Valid, 13149 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.36ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2441.17ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:02,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1906 Valid, 13149 Invalid, 88 Unknown, 0 Unchecked, 12.36ms Time], IncrementalHoareTripleChecker [16 Valid, 71 Invalid, 1 Unknown, 0 Unchecked, 2441.17ms Time] [2021-11-05 20:05:02,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9105 states. [2021-11-05 20:05:02,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9105 to 9089. [2021-11-05 20:05:02,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9089 states, 9075 states have (on average 1.296749311294766) internal successors, (11768), 9088 states have internal predecessors, (11768), 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) [2021-11-05 20:05:02,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9089 states to 9089 states and 11768 transitions. [2021-11-05 20:05:02,890 INFO L78 Accepts]: Start accepts. Automaton has 9089 states and 11768 transitions. Word has length 47 [2021-11-05 20:05:02,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:02,891 INFO L470 AbstractCegarLoop]: Abstraction has 9089 states and 11768 transitions. [2021-11-05 20:05:02,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2021-11-05 20:05:02,891 INFO L276 IsEmpty]: Start isEmpty. Operand 9089 states and 11768 transitions. [2021-11-05 20:05:02,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-05 20:05:02,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:02,895 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:05:02,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:05:02,896 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:02,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:02,896 INFO L85 PathProgramCache]: Analyzing trace with hash -232223923, now seen corresponding path program 1 times [2021-11-05 20:05:02,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:02,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366817347] [2021-11-05 20:05:02,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:02,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:03,300 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:05:03,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:03,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366817347] [2021-11-05 20:05:03,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366817347] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:03,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:03,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:03,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883252734] [2021-11-05 20:05:03,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:03,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:05:03,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:03,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:05:03,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:05:03,303 INFO L87 Difference]: Start difference. First operand 9089 states and 11768 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-05 20:05:05,387 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:05:05,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:05,928 INFO L93 Difference]: Finished difference Result 20044 states and 25946 transitions. [2021-11-05 20:05:05,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:05,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2021-11-05 20:05:05,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:05,979 INFO L225 Difference]: With dead ends: 20044 [2021-11-05 20:05:05,979 INFO L226 Difference]: Without dead ends: 10999 [2021-11-05 20:05:05,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.57ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:05:05,998 INFO L933 BasicCegarLoop]: 6498 mSDtfsCounter, 1911 mSDsluCounter, 6447 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2239.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 12945 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.88ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2396.25ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:06,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1911 Valid, 12945 Invalid, 88 Unknown, 0 Unchecked, 18.88ms Time], IncrementalHoareTripleChecker [17 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2396.25ms Time] [2021-11-05 20:05:06,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10999 states. [2021-11-05 20:05:06,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10999 to 10983. [2021-11-05 20:05:06,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10983 states, 10969 states have (on average 1.2933722308323456) internal successors, (14187), 10982 states have internal predecessors, (14187), 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) [2021-11-05 20:05:06,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10983 states to 10983 states and 14187 transitions. [2021-11-05 20:05:06,230 INFO L78 Accepts]: Start accepts. Automaton has 10983 states and 14187 transitions. Word has length 78 [2021-11-05 20:05:06,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:06,232 INFO L470 AbstractCegarLoop]: Abstraction has 10983 states and 14187 transitions. [2021-11-05 20:05:06,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-05 20:05:06,232 INFO L276 IsEmpty]: Start isEmpty. Operand 10983 states and 14187 transitions. [2021-11-05 20:05:06,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-05 20:05:06,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:06,238 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:06,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:05:06,238 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:06,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:06,239 INFO L85 PathProgramCache]: Analyzing trace with hash 585100769, now seen corresponding path program 1 times [2021-11-05 20:05:06,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:06,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451475804] [2021-11-05 20:05:06,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:06,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:06,618 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 20:05:06,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:06,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451475804] [2021-11-05 20:05:06,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451475804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:06,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:06,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:06,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079090670] [2021-11-05 20:05:06,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:06,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:05:06,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:06,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:05:06,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:05:06,622 INFO L87 Difference]: Start difference. First operand 10983 states and 14187 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) 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) [2021-11-05 20:05:08,711 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:05:09,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:09,253 INFO L93 Difference]: Finished difference Result 23822 states and 30764 transitions. [2021-11-05 20:05:09,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:09,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) 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 115 [2021-11-05 20:05:09,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:09,285 INFO L225 Difference]: With dead ends: 23822 [2021-11-05 20:05:09,286 INFO L226 Difference]: Without dead ends: 12883 [2021-11-05 20:05:09,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.94ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:05:09,311 INFO L933 BasicCegarLoop]: 8425 mSDtfsCounter, 1905 mSDsluCounter, 6460 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2237.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1905 SdHoareTripleChecker+Valid, 14885 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.07ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2439.63ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:09,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1905 Valid, 14885 Invalid, 79 Unknown, 0 Unchecked, 13.07ms Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 1 Unknown, 0 Unchecked, 2439.63ms Time] [2021-11-05 20:05:09,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12883 states. [2021-11-05 20:05:09,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12883 to 12867. [2021-11-05 20:05:09,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12867 states, 12853 states have (on average 1.2909048471174045) internal successors, (16592), 12866 states have internal predecessors, (16592), 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) [2021-11-05 20:05:09,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12867 states to 12867 states and 16592 transitions. [2021-11-05 20:05:09,596 INFO L78 Accepts]: Start accepts. Automaton has 12867 states and 16592 transitions. Word has length 115 [2021-11-05 20:05:09,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:09,597 INFO L470 AbstractCegarLoop]: Abstraction has 12867 states and 16592 transitions. [2021-11-05 20:05:09,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) 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) [2021-11-05 20:05:09,598 INFO L276 IsEmpty]: Start isEmpty. Operand 12867 states and 16592 transitions. [2021-11-05 20:05:09,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-05 20:05:09,604 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:09,604 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:09,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 20:05:09,604 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:09,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:09,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1971304163, now seen corresponding path program 1 times [2021-11-05 20:05:09,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:09,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521123394] [2021-11-05 20:05:09,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:09,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:10,024 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:05:10,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:10,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521123394] [2021-11-05 20:05:10,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521123394] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:10,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:10,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 20:05:10,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453205607] [2021-11-05 20:05:10,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:10,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:05:10,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:10,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:05:10,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:05:10,027 INFO L87 Difference]: Start difference. First operand 12867 states and 16592 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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) [2021-11-05 20:05:10,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:10,303 INFO L93 Difference]: Finished difference Result 25690 states and 33135 transitions. [2021-11-05 20:05:10,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:10,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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 115 [2021-11-05 20:05:10,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:10,335 INFO L225 Difference]: With dead ends: 25690 [2021-11-05 20:05:10,335 INFO L226 Difference]: Without dead ends: 12867 [2021-11-05 20:05:10,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.09ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:05:10,358 INFO L933 BasicCegarLoop]: 6490 mSDtfsCounter, 6415 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6415 SdHoareTripleChecker+Valid, 6490 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.55ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.29ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:10,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6415 Valid, 6490 Invalid, 27 Unknown, 0 Unchecked, 8.55ms Time], IncrementalHoareTripleChecker [13 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 61.29ms Time] [2021-11-05 20:05:10,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12867 states. [2021-11-05 20:05:10,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12867 to 12867. [2021-11-05 20:05:10,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12867 states, 12853 states have (on average 1.2881039446043725) internal successors, (16556), 12866 states have internal predecessors, (16556), 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) [2021-11-05 20:05:10,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12867 states to 12867 states and 16556 transitions. [2021-11-05 20:05:10,639 INFO L78 Accepts]: Start accepts. Automaton has 12867 states and 16556 transitions. Word has length 115 [2021-11-05 20:05:10,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:10,640 INFO L470 AbstractCegarLoop]: Abstraction has 12867 states and 16556 transitions. [2021-11-05 20:05:10,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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) [2021-11-05 20:05:10,640 INFO L276 IsEmpty]: Start isEmpty. Operand 12867 states and 16556 transitions. [2021-11-05 20:05:10,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-05 20:05:10,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:10,648 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:10,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 20:05:10,648 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:10,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:10,649 INFO L85 PathProgramCache]: Analyzing trace with hash 980688957, now seen corresponding path program 1 times [2021-11-05 20:05:10,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:10,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488225095] [2021-11-05 20:05:10,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:10,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:11,172 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:05:11,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:11,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488225095] [2021-11-05 20:05:11,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488225095] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:11,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:11,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:11,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079840705] [2021-11-05 20:05:11,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:11,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:05:11,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:11,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:05:11,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:05:11,174 INFO L87 Difference]: Start difference. First operand 12867 states and 16556 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-11-05 20:05:11,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:11,659 INFO L93 Difference]: Finished difference Result 25690 states and 33063 transitions. [2021-11-05 20:05:11,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:11,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 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 116 [2021-11-05 20:05:11,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:11,688 INFO L225 Difference]: With dead ends: 25690 [2021-11-05 20:05:11,689 INFO L226 Difference]: Without dead ends: 12867 [2021-11-05 20:05:11,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 57.45ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:05:11,712 INFO L933 BasicCegarLoop]: 6462 mSDtfsCounter, 12889 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 169.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12889 SdHoareTripleChecker+Valid, 6462 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.18ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 180.76ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:11,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12889 Valid, 6462 Invalid, 42 Unknown, 0 Unchecked, 14.18ms Time], IncrementalHoareTripleChecker [14 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 180.76ms Time] [2021-11-05 20:05:11,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12867 states. [2021-11-05 20:05:11,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12867 to 12867. [2021-11-05 20:05:11,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12867 states, 12853 states have (on average 1.2853030420913405) internal successors, (16520), 12866 states have internal predecessors, (16520), 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) [2021-11-05 20:05:12,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12867 states to 12867 states and 16520 transitions. [2021-11-05 20:05:12,003 INFO L78 Accepts]: Start accepts. Automaton has 12867 states and 16520 transitions. Word has length 116 [2021-11-05 20:05:12,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:12,004 INFO L470 AbstractCegarLoop]: Abstraction has 12867 states and 16520 transitions. [2021-11-05 20:05:12,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-11-05 20:05:12,004 INFO L276 IsEmpty]: Start isEmpty. Operand 12867 states and 16520 transitions. [2021-11-05 20:05:12,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-05 20:05:12,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:12,009 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:12,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 20:05:12,010 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:12,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:12,010 INFO L85 PathProgramCache]: Analyzing trace with hash 336537598, now seen corresponding path program 1 times [2021-11-05 20:05:12,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:12,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226799349] [2021-11-05 20:05:12,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:12,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:12,369 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:05:12,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:12,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226799349] [2021-11-05 20:05:12,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226799349] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:12,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:12,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:12,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356080149] [2021-11-05 20:05:12,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:12,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:05:12,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:12,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:05:12,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:05:12,371 INFO L87 Difference]: Start difference. First operand 12867 states and 16520 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-05 20:05:12,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:12,862 INFO L93 Difference]: Finished difference Result 25690 states and 32991 transitions. [2021-11-05 20:05:12,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:12,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 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 117 [2021-11-05 20:05:12,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:12,893 INFO L225 Difference]: With dead ends: 25690 [2021-11-05 20:05:12,893 INFO L226 Difference]: Without dead ends: 12867 [2021-11-05 20:05:12,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.33ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:05:12,918 INFO L933 BasicCegarLoop]: 6448 mSDtfsCounter, 12860 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 149.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12860 SdHoareTripleChecker+Valid, 6448 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.26ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 160.41ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:12,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12860 Valid, 6448 Invalid, 42 Unknown, 0 Unchecked, 13.26ms Time], IncrementalHoareTripleChecker [14 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 160.41ms Time] [2021-11-05 20:05:12,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12867 states. [2021-11-05 20:05:13,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12867 to 12867. [2021-11-05 20:05:13,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12867 states, 12853 states have (on average 1.2825021395783085) internal successors, (16484), 12866 states have internal predecessors, (16484), 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) [2021-11-05 20:05:13,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12867 states to 12867 states and 16484 transitions. [2021-11-05 20:05:13,263 INFO L78 Accepts]: Start accepts. Automaton has 12867 states and 16484 transitions. Word has length 117 [2021-11-05 20:05:13,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:13,263 INFO L470 AbstractCegarLoop]: Abstraction has 12867 states and 16484 transitions. [2021-11-05 20:05:13,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-05 20:05:13,264 INFO L276 IsEmpty]: Start isEmpty. Operand 12867 states and 16484 transitions. [2021-11-05 20:05:13,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-05 20:05:13,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:13,269 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:13,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 20:05:13,269 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:13,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:13,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1842830904, now seen corresponding path program 1 times [2021-11-05 20:05:13,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:13,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438193447] [2021-11-05 20:05:13,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:13,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:13,636 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:05:13,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:13,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438193447] [2021-11-05 20:05:13,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438193447] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:13,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:13,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:13,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673922622] [2021-11-05 20:05:13,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:13,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:05:13,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:13,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:05:13,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:05:13,638 INFO L87 Difference]: Start difference. First operand 12867 states and 16484 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-05 20:05:14,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:14,167 INFO L93 Difference]: Finished difference Result 25690 states and 32919 transitions. [2021-11-05 20:05:14,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:14,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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 118 [2021-11-05 20:05:14,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:14,196 INFO L225 Difference]: With dead ends: 25690 [2021-11-05 20:05:14,197 INFO L226 Difference]: Without dead ends: 12867 [2021-11-05 20:05:14,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.88ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:05:14,217 INFO L933 BasicCegarLoop]: 6434 mSDtfsCounter, 12831 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 154.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12831 SdHoareTripleChecker+Valid, 6434 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.95ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 164.12ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:14,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12831 Valid, 6434 Invalid, 42 Unknown, 0 Unchecked, 10.95ms Time], IncrementalHoareTripleChecker [14 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 164.12ms Time] [2021-11-05 20:05:14,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12867 states. [2021-11-05 20:05:14,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12867 to 12867. [2021-11-05 20:05:14,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12867 states, 12853 states have (on average 1.2797012370652765) internal successors, (16448), 12866 states have internal predecessors, (16448), 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) [2021-11-05 20:05:14,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12867 states to 12867 states and 16448 transitions. [2021-11-05 20:05:14,736 INFO L78 Accepts]: Start accepts. Automaton has 12867 states and 16448 transitions. Word has length 118 [2021-11-05 20:05:14,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:14,736 INFO L470 AbstractCegarLoop]: Abstraction has 12867 states and 16448 transitions. [2021-11-05 20:05:14,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-05 20:05:14,737 INFO L276 IsEmpty]: Start isEmpty. Operand 12867 states and 16448 transitions. [2021-11-05 20:05:14,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-05 20:05:14,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:14,743 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:14,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 20:05:14,744 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:14,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:14,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1293432089, now seen corresponding path program 1 times [2021-11-05 20:05:14,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:14,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795619603] [2021-11-05 20:05:14,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:14,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:05:15,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:15,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795619603] [2021-11-05 20:05:15,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795619603] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:15,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:15,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:15,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988141470] [2021-11-05 20:05:15,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:15,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:05:15,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:15,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:05:15,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:05:15,074 INFO L87 Difference]: Start difference. First operand 12867 states and 16448 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-11-05 20:05:15,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:15,632 INFO L93 Difference]: Finished difference Result 25690 states and 32847 transitions. [2021-11-05 20:05:15,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:15,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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 [2021-11-05 20:05:15,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:15,668 INFO L225 Difference]: With dead ends: 25690 [2021-11-05 20:05:15,668 INFO L226 Difference]: Without dead ends: 12867 [2021-11-05 20:05:15,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.38ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:05:15,694 INFO L933 BasicCegarLoop]: 6420 mSDtfsCounter, 12802 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 152.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12802 SdHoareTripleChecker+Valid, 6420 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.31ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 165.45ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:15,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12802 Valid, 6420 Invalid, 42 Unknown, 0 Unchecked, 10.31ms Time], IncrementalHoareTripleChecker [14 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 165.45ms Time] [2021-11-05 20:05:15,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12867 states. [2021-11-05 20:05:16,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12867 to 12867. [2021-11-05 20:05:16,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12867 states, 12853 states have (on average 1.2769003345522447) internal successors, (16412), 12866 states have internal predecessors, (16412), 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) [2021-11-05 20:05:16,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12867 states to 12867 states and 16412 transitions. [2021-11-05 20:05:16,076 INFO L78 Accepts]: Start accepts. Automaton has 12867 states and 16412 transitions. Word has length 119 [2021-11-05 20:05:16,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:16,077 INFO L470 AbstractCegarLoop]: Abstraction has 12867 states and 16412 transitions. [2021-11-05 20:05:16,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-11-05 20:05:16,077 INFO L276 IsEmpty]: Start isEmpty. Operand 12867 states and 16412 transitions. [2021-11-05 20:05:16,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-05 20:05:16,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:16,082 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:16,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 20:05:16,083 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:16,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:16,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1442086963, now seen corresponding path program 1 times [2021-11-05 20:05:16,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:16,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670662628] [2021-11-05 20:05:16,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:16,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:16,420 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:05:16,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:16,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670662628] [2021-11-05 20:05:16,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670662628] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:16,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:16,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:16,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965093493] [2021-11-05 20:05:16,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:16,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:05:16,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:16,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:05:16,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:05:16,422 INFO L87 Difference]: Start difference. First operand 12867 states and 16412 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-05 20:05:16,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:16,962 INFO L93 Difference]: Finished difference Result 25690 states and 32775 transitions. [2021-11-05 20:05:16,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:16,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 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 [2021-11-05 20:05:16,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:16,983 INFO L225 Difference]: With dead ends: 25690 [2021-11-05 20:05:16,984 INFO L226 Difference]: Without dead ends: 12867 [2021-11-05 20:05:17,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.62ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:05:17,002 INFO L933 BasicCegarLoop]: 6406 mSDtfsCounter, 12773 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 146.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12773 SdHoareTripleChecker+Valid, 6406 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.29ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 154.49ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:17,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12773 Valid, 6406 Invalid, 42 Unknown, 0 Unchecked, 9.29ms Time], IncrementalHoareTripleChecker [14 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 154.49ms Time] [2021-11-05 20:05:17,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12867 states. [2021-11-05 20:05:17,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12867 to 12867. [2021-11-05 20:05:17,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12867 states, 12853 states have (on average 1.2740994320392127) internal successors, (16376), 12866 states have internal predecessors, (16376), 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) [2021-11-05 20:05:17,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12867 states to 12867 states and 16376 transitions. [2021-11-05 20:05:17,549 INFO L78 Accepts]: Start accepts. Automaton has 12867 states and 16376 transitions. Word has length 120 [2021-11-05 20:05:17,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:17,549 INFO L470 AbstractCegarLoop]: Abstraction has 12867 states and 16376 transitions. [2021-11-05 20:05:17,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-05 20:05:17,550 INFO L276 IsEmpty]: Start isEmpty. Operand 12867 states and 16376 transitions. [2021-11-05 20:05:17,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-05 20:05:17,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:17,554 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:17,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 20:05:17,555 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:17,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:17,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1755569716, now seen corresponding path program 1 times [2021-11-05 20:05:17,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:17,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013561824] [2021-11-05 20:05:17,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:17,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:17,855 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:05:17,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:17,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013561824] [2021-11-05 20:05:17,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013561824] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:17,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:17,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:17,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048875216] [2021-11-05 20:05:17,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:17,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:05:17,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:17,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:05:17,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:05:17,858 INFO L87 Difference]: Start difference. First operand 12867 states and 16376 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 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) [2021-11-05 20:05:18,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:18,437 INFO L93 Difference]: Finished difference Result 25690 states and 32703 transitions. [2021-11-05 20:05:18,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:18,438 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 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 121 [2021-11-05 20:05:18,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:18,455 INFO L225 Difference]: With dead ends: 25690 [2021-11-05 20:05:18,455 INFO L226 Difference]: Without dead ends: 12867 [2021-11-05 20:05:18,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.51ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:05:18,473 INFO L933 BasicCegarLoop]: 6392 mSDtfsCounter, 12744 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 138.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12744 SdHoareTripleChecker+Valid, 6392 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.83ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 146.96ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:18,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12744 Valid, 6392 Invalid, 42 Unknown, 0 Unchecked, 9.83ms Time], IncrementalHoareTripleChecker [14 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 146.96ms Time] [2021-11-05 20:05:18,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12867 states. [2021-11-05 20:05:19,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12867 to 12867. [2021-11-05 20:05:19,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12867 states, 12853 states have (on average 1.2712985295261807) internal successors, (16340), 12866 states have internal predecessors, (16340), 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) [2021-11-05 20:05:19,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12867 states to 12867 states and 16340 transitions. [2021-11-05 20:05:19,042 INFO L78 Accepts]: Start accepts. Automaton has 12867 states and 16340 transitions. Word has length 121 [2021-11-05 20:05:19,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:19,042 INFO L470 AbstractCegarLoop]: Abstraction has 12867 states and 16340 transitions. [2021-11-05 20:05:19,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 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) [2021-11-05 20:05:19,043 INFO L276 IsEmpty]: Start isEmpty. Operand 12867 states and 16340 transitions. [2021-11-05 20:05:19,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-05 20:05:19,050 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:19,051 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:19,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 20:05:19,051 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:19,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:19,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1411217874, now seen corresponding path program 1 times [2021-11-05 20:05:19,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:19,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584718739] [2021-11-05 20:05:19,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:19,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:19,331 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:05:19,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:19,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584718739] [2021-11-05 20:05:19,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584718739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:19,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:19,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:19,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195984753] [2021-11-05 20:05:19,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:19,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:05:19,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:19,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:05:19,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:05:19,334 INFO L87 Difference]: Start difference. First operand 12867 states and 16340 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 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) [2021-11-05 20:05:19,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:19,931 INFO L93 Difference]: Finished difference Result 25690 states and 32631 transitions. [2021-11-05 20:05:19,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:19,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 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 [2021-11-05 20:05:19,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:19,948 INFO L225 Difference]: With dead ends: 25690 [2021-11-05 20:05:19,948 INFO L226 Difference]: Without dead ends: 12867 [2021-11-05 20:05:19,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.96ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:05:19,966 INFO L933 BasicCegarLoop]: 6378 mSDtfsCounter, 12715 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 128.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12715 SdHoareTripleChecker+Valid, 6378 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.47ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 137.06ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:19,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12715 Valid, 6378 Invalid, 42 Unknown, 0 Unchecked, 9.47ms Time], IncrementalHoareTripleChecker [14 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 137.06ms Time] [2021-11-05 20:05:19,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12867 states. [2021-11-05 20:05:20,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12867 to 12867. [2021-11-05 20:05:20,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12867 states, 12853 states have (on average 1.2684976270131487) internal successors, (16304), 12866 states have internal predecessors, (16304), 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) [2021-11-05 20:05:20,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12867 states to 12867 states and 16304 transitions. [2021-11-05 20:05:20,468 INFO L78 Accepts]: Start accepts. Automaton has 12867 states and 16304 transitions. Word has length 122 [2021-11-05 20:05:20,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:20,469 INFO L470 AbstractCegarLoop]: Abstraction has 12867 states and 16304 transitions. [2021-11-05 20:05:20,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 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) [2021-11-05 20:05:20,469 INFO L276 IsEmpty]: Start isEmpty. Operand 12867 states and 16304 transitions. [2021-11-05 20:05:20,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-05 20:05:20,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:20,473 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:20,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 20:05:20,474 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:20,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:20,474 INFO L85 PathProgramCache]: Analyzing trace with hash -797236401, now seen corresponding path program 1 times [2021-11-05 20:05:20,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:20,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099891780] [2021-11-05 20:05:20,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:20,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:05:20,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:20,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099891780] [2021-11-05 20:05:20,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099891780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:20,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:20,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:20,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099167462] [2021-11-05 20:05:20,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:20,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:05:20,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:20,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:05:20,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:05:20,731 INFO L87 Difference]: Start difference. First operand 12867 states and 16304 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-05 20:05:21,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:21,459 INFO L93 Difference]: Finished difference Result 25690 states and 32559 transitions. [2021-11-05 20:05:21,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:21,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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 123 [2021-11-05 20:05:21,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:21,475 INFO L225 Difference]: With dead ends: 25690 [2021-11-05 20:05:21,476 INFO L226 Difference]: Without dead ends: 12867 [2021-11-05 20:05:21,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.20ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:05:21,493 INFO L933 BasicCegarLoop]: 6364 mSDtfsCounter, 12686 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 137.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12686 SdHoareTripleChecker+Valid, 6364 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.15ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 146.02ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:21,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12686 Valid, 6364 Invalid, 42 Unknown, 0 Unchecked, 10.15ms Time], IncrementalHoareTripleChecker [14 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 146.02ms Time] [2021-11-05 20:05:21,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12867 states. [2021-11-05 20:05:21,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12867 to 12867. [2021-11-05 20:05:21,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12867 states, 12853 states have (on average 1.2656967245001167) internal successors, (16268), 12866 states have internal predecessors, (16268), 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) [2021-11-05 20:05:21,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12867 states to 12867 states and 16268 transitions. [2021-11-05 20:05:21,957 INFO L78 Accepts]: Start accepts. Automaton has 12867 states and 16268 transitions. Word has length 123 [2021-11-05 20:05:21,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:21,957 INFO L470 AbstractCegarLoop]: Abstraction has 12867 states and 16268 transitions. [2021-11-05 20:05:21,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-05 20:05:21,957 INFO L276 IsEmpty]: Start isEmpty. Operand 12867 states and 16268 transitions. [2021-11-05 20:05:21,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-05 20:05:21,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:21,961 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:21,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 20:05:21,962 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:21,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:21,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1056469033, now seen corresponding path program 1 times [2021-11-05 20:05:21,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:21,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040950296] [2021-11-05 20:05:21,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:21,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:22,228 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:05:22,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:22,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040950296] [2021-11-05 20:05:22,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040950296] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:22,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:22,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:22,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736214975] [2021-11-05 20:05:22,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:22,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:05:22,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:22,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:05:22,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:05:22,230 INFO L87 Difference]: Start difference. First operand 12867 states and 16268 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-05 20:05:22,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:22,974 INFO L93 Difference]: Finished difference Result 25690 states and 32487 transitions. [2021-11-05 20:05:22,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:22,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 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 [2021-11-05 20:05:22,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:22,994 INFO L225 Difference]: With dead ends: 25690 [2021-11-05 20:05:22,994 INFO L226 Difference]: Without dead ends: 12867 [2021-11-05 20:05:23,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.03ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:05:23,012 INFO L933 BasicCegarLoop]: 6350 mSDtfsCounter, 12657 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 136.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12657 SdHoareTripleChecker+Valid, 6350 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.60ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 146.58ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:23,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12657 Valid, 6350 Invalid, 42 Unknown, 0 Unchecked, 9.60ms Time], IncrementalHoareTripleChecker [14 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 146.58ms Time] [2021-11-05 20:05:23,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12867 states. [2021-11-05 20:05:23,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12867 to 12867. [2021-11-05 20:05:23,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12867 states, 12853 states have (on average 1.2628958219870847) internal successors, (16232), 12866 states have internal predecessors, (16232), 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) [2021-11-05 20:05:23,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12867 states to 12867 states and 16232 transitions. [2021-11-05 20:05:23,519 INFO L78 Accepts]: Start accepts. Automaton has 12867 states and 16232 transitions. Word has length 124 [2021-11-05 20:05:23,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:23,519 INFO L470 AbstractCegarLoop]: Abstraction has 12867 states and 16232 transitions. [2021-11-05 20:05:23,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-05 20:05:23,520 INFO L276 IsEmpty]: Start isEmpty. Operand 12867 states and 16232 transitions. [2021-11-05 20:05:23,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-05 20:05:23,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:23,523 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:23,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-05 20:05:23,524 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:23,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:23,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1608055702, now seen corresponding path program 1 times [2021-11-05 20:05:23,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:23,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553165245] [2021-11-05 20:05:23,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:23,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:23,817 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:05:23,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:23,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553165245] [2021-11-05 20:05:23,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553165245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:23,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:23,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:23,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435426746] [2021-11-05 20:05:23,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:23,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:05:23,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:23,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:05:23,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:05:23,819 INFO L87 Difference]: Start difference. First operand 12867 states and 16232 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 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) [2021-11-05 20:05:24,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:24,660 INFO L93 Difference]: Finished difference Result 25690 states and 32415 transitions. [2021-11-05 20:05:24,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:24,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 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 125 [2021-11-05 20:05:24,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:24,682 INFO L225 Difference]: With dead ends: 25690 [2021-11-05 20:05:24,682 INFO L226 Difference]: Without dead ends: 12867 [2021-11-05 20:05:24,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.97ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:05:24,707 INFO L933 BasicCegarLoop]: 6336 mSDtfsCounter, 12628 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 152.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12628 SdHoareTripleChecker+Valid, 6336 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.33ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 162.86ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:24,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12628 Valid, 6336 Invalid, 42 Unknown, 0 Unchecked, 10.33ms Time], IncrementalHoareTripleChecker [14 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 162.86ms Time] [2021-11-05 20:05:24,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12867 states. [2021-11-05 20:05:25,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12867 to 12867. [2021-11-05 20:05:25,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12867 states, 12853 states have (on average 1.2600949194740527) internal successors, (16196), 12866 states have internal predecessors, (16196), 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) [2021-11-05 20:05:25,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12867 states to 12867 states and 16196 transitions. [2021-11-05 20:05:25,262 INFO L78 Accepts]: Start accepts. Automaton has 12867 states and 16196 transitions. Word has length 125 [2021-11-05 20:05:25,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:25,262 INFO L470 AbstractCegarLoop]: Abstraction has 12867 states and 16196 transitions. [2021-11-05 20:05:25,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 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) [2021-11-05 20:05:25,262 INFO L276 IsEmpty]: Start isEmpty. Operand 12867 states and 16196 transitions. [2021-11-05 20:05:25,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-05 20:05:25,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:25,268 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:25,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-05 20:05:25,268 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:25,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:25,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1691172388, now seen corresponding path program 1 times [2021-11-05 20:05:25,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:25,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715754945] [2021-11-05 20:05:25,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:25,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:25,582 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:05:25,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:25,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715754945] [2021-11-05 20:05:25,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715754945] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:25,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:25,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:25,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057986463] [2021-11-05 20:05:25,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:25,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:05:25,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:25,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:05:25,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:05:25,584 INFO L87 Difference]: Start difference. First operand 12867 states and 16196 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 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) [2021-11-05 20:05:26,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:26,547 INFO L93 Difference]: Finished difference Result 25690 states and 32343 transitions. [2021-11-05 20:05:26,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:26,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 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 [2021-11-05 20:05:26,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:26,569 INFO L225 Difference]: With dead ends: 25690 [2021-11-05 20:05:26,569 INFO L226 Difference]: Without dead ends: 12867 [2021-11-05 20:05:26,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 61.47ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:05:26,589 INFO L933 BasicCegarLoop]: 6322 mSDtfsCounter, 12599 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 209.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12599 SdHoareTripleChecker+Valid, 6322 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.34ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 230.92ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:26,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12599 Valid, 6322 Invalid, 42 Unknown, 0 Unchecked, 10.34ms Time], IncrementalHoareTripleChecker [14 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 230.92ms Time] [2021-11-05 20:05:26,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12867 states. [2021-11-05 20:05:27,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12867 to 12867. [2021-11-05 20:05:27,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12867 states, 12853 states have (on average 1.2572940169610207) internal successors, (16160), 12866 states have internal predecessors, (16160), 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) [2021-11-05 20:05:27,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12867 states to 12867 states and 16160 transitions. [2021-11-05 20:05:27,174 INFO L78 Accepts]: Start accepts. Automaton has 12867 states and 16160 transitions. Word has length 126 [2021-11-05 20:05:27,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:27,174 INFO L470 AbstractCegarLoop]: Abstraction has 12867 states and 16160 transitions. [2021-11-05 20:05:27,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 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) [2021-11-05 20:05:27,175 INFO L276 IsEmpty]: Start isEmpty. Operand 12867 states and 16160 transitions. [2021-11-05 20:05:27,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-05 20:05:27,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:27,179 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:27,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-05 20:05:27,179 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:27,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:27,180 INFO L85 PathProgramCache]: Analyzing trace with hash 888177029, now seen corresponding path program 1 times [2021-11-05 20:05:27,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:27,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317616700] [2021-11-05 20:05:27,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:27,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:27,476 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:05:27,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:27,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317616700] [2021-11-05 20:05:27,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317616700] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:27,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:27,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:27,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126318385] [2021-11-05 20:05:27,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:27,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:05:27,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:27,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:05:27,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:05:27,479 INFO L87 Difference]: Start difference. First operand 12867 states and 16160 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 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) [2021-11-05 20:05:28,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:28,421 INFO L93 Difference]: Finished difference Result 25690 states and 32271 transitions. [2021-11-05 20:05:28,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:28,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 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 127 [2021-11-05 20:05:28,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:28,442 INFO L225 Difference]: With dead ends: 25690 [2021-11-05 20:05:28,442 INFO L226 Difference]: Without dead ends: 12867 [2021-11-05 20:05:28,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.81ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:05:28,460 INFO L933 BasicCegarLoop]: 6308 mSDtfsCounter, 12570 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 162.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12570 SdHoareTripleChecker+Valid, 6308 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.20ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 172.14ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:28,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12570 Valid, 6308 Invalid, 42 Unknown, 0 Unchecked, 10.20ms Time], IncrementalHoareTripleChecker [14 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 172.14ms Time] [2021-11-05 20:05:28,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12867 states. [2021-11-05 20:05:29,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12867 to 12867. [2021-11-05 20:05:29,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12867 states, 12853 states have (on average 1.2544931144479887) internal successors, (16124), 12866 states have internal predecessors, (16124), 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) [2021-11-05 20:05:29,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12867 states to 12867 states and 16124 transitions. [2021-11-05 20:05:29,092 INFO L78 Accepts]: Start accepts. Automaton has 12867 states and 16124 transitions. Word has length 127 [2021-11-05 20:05:29,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:29,092 INFO L470 AbstractCegarLoop]: Abstraction has 12867 states and 16124 transitions. [2021-11-05 20:05:29,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 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) [2021-11-05 20:05:29,092 INFO L276 IsEmpty]: Start isEmpty. Operand 12867 states and 16124 transitions. [2021-11-05 20:05:29,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-05 20:05:29,097 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:29,097 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:29,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-05 20:05:29,097 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:29,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:29,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1765273631, now seen corresponding path program 1 times [2021-11-05 20:05:29,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:29,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203225188] [2021-11-05 20:05:29,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:29,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:29,394 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:05:29,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:29,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203225188] [2021-11-05 20:05:29,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203225188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:29,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:29,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:29,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513907802] [2021-11-05 20:05:29,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:29,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:05:29,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:29,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:05:29,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:05:29,396 INFO L87 Difference]: Start difference. First operand 12867 states and 16124 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 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) [2021-11-05 20:05:30,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:30,389 INFO L93 Difference]: Finished difference Result 25690 states and 32199 transitions. [2021-11-05 20:05:30,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:30,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 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 [2021-11-05 20:05:30,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:30,411 INFO L225 Difference]: With dead ends: 25690 [2021-11-05 20:05:30,411 INFO L226 Difference]: Without dead ends: 12867 [2021-11-05 20:05:30,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.01ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:05:30,425 INFO L933 BasicCegarLoop]: 6294 mSDtfsCounter, 12541 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 149.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12541 SdHoareTripleChecker+Valid, 6294 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.32ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 159.50ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:30,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12541 Valid, 6294 Invalid, 42 Unknown, 0 Unchecked, 10.32ms Time], IncrementalHoareTripleChecker [14 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 159.50ms Time] [2021-11-05 20:05:30,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12867 states. [2021-11-05 20:05:31,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12867 to 12867. [2021-11-05 20:05:31,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12867 states, 12853 states have (on average 1.2516922119349567) internal successors, (16088), 12866 states have internal predecessors, (16088), 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) [2021-11-05 20:05:31,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12867 states to 12867 states and 16088 transitions. [2021-11-05 20:05:31,080 INFO L78 Accepts]: Start accepts. Automaton has 12867 states and 16088 transitions. Word has length 128 [2021-11-05 20:05:31,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:31,080 INFO L470 AbstractCegarLoop]: Abstraction has 12867 states and 16088 transitions. [2021-11-05 20:05:31,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 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) [2021-11-05 20:05:31,080 INFO L276 IsEmpty]: Start isEmpty. Operand 12867 states and 16088 transitions. [2021-11-05 20:05:31,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-05 20:05:31,085 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:31,085 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:31,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-05 20:05:31,085 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:31,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:31,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1109353824, now seen corresponding path program 1 times [2021-11-05 20:05:31,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:31,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21018214] [2021-11-05 20:05:31,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:31,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:31,402 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:05:31,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:31,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21018214] [2021-11-05 20:05:31,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21018214] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:31,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:31,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:31,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728720017] [2021-11-05 20:05:31,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:31,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:05:31,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:31,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:05:31,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:05:31,404 INFO L87 Difference]: Start difference. First operand 12867 states and 16088 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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) [2021-11-05 20:05:33,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:33,916 INFO L93 Difference]: Finished difference Result 51304 states and 64173 transitions. [2021-11-05 20:05:33,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:05:33,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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 129 [2021-11-05 20:05:33,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:33,991 INFO L225 Difference]: With dead ends: 51304 [2021-11-05 20:05:33,991 INFO L226 Difference]: Without dead ends: 38481 [2021-11-05 20:05:34,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.48ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:05:34,025 INFO L933 BasicCegarLoop]: 6290 mSDtfsCounter, 18734 mSDsluCounter, 18681 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 377.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18734 SdHoareTripleChecker+Valid, 24971 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.28ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 411.16ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:34,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18734 Valid, 24971 Invalid, 174 Unknown, 0 Unchecked, 27.28ms Time], IncrementalHoareTripleChecker [43 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 411.16ms Time] [2021-11-05 20:05:34,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38481 states. [2021-11-05 20:05:35,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38481 to 24510. [2021-11-05 20:05:35,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24510 states, 24496 states have (on average 1.2546129980404963) internal successors, (30733), 24509 states have internal predecessors, (30733), 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) [2021-11-05 20:05:35,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24510 states to 24510 states and 30733 transitions. [2021-11-05 20:05:35,637 INFO L78 Accepts]: Start accepts. Automaton has 24510 states and 30733 transitions. Word has length 129 [2021-11-05 20:05:35,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:35,637 INFO L470 AbstractCegarLoop]: Abstraction has 24510 states and 30733 transitions. [2021-11-05 20:05:35,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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) [2021-11-05 20:05:35,638 INFO L276 IsEmpty]: Start isEmpty. Operand 24510 states and 30733 transitions. [2021-11-05 20:05:35,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-05 20:05:35,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:35,644 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-05 20:05:35,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-05 20:05:35,644 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:35,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:35,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1109294242, now seen corresponding path program 1 times [2021-11-05 20:05:35,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:35,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44650984] [2021-11-05 20:05:35,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:35,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:35,982 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:05:35,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:35,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44650984] [2021-11-05 20:05:35,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44650984] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:35,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:35,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 20:05:35,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816273561] [2021-11-05 20:05:35,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:35,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:05:35,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:35,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:05:35,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:05:35,984 INFO L87 Difference]: Start difference. First operand 24510 states and 30733 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2021-11-05 20:05:41,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:05:43,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:43,516 INFO L93 Difference]: Finished difference Result 85166 states and 107141 transitions. [2021-11-05 20:05:43,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 20:05:43,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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 129 [2021-11-05 20:05:43,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:43,660 INFO L225 Difference]: With dead ends: 85166 [2021-11-05 20:05:43,660 INFO L226 Difference]: Without dead ends: 85148 [2021-11-05 20:05:43,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.45ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:05:43,688 INFO L933 BasicCegarLoop]: 11884 mSDtfsCounter, 22501 mSDsluCounter, 21118 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1946.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22501 SdHoareTripleChecker+Valid, 33002 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 52.74ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2054.74ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:43,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22501 Valid, 33002 Invalid, 179 Unknown, 0 Unchecked, 52.74ms Time], IncrementalHoareTripleChecker [40 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 2054.74ms Time] [2021-11-05 20:05:43,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85148 states. [2021-11-05 20:05:45,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85148 to 24510. [2021-11-05 20:05:45,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24510 states, 24496 states have (on average 1.2537148922273025) internal successors, (30711), 24509 states have internal predecessors, (30711), 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) [2021-11-05 20:05:45,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24510 states to 24510 states and 30711 transitions. [2021-11-05 20:05:45,834 INFO L78 Accepts]: Start accepts. Automaton has 24510 states and 30711 transitions. Word has length 129 [2021-11-05 20:05:45,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:45,835 INFO L470 AbstractCegarLoop]: Abstraction has 24510 states and 30711 transitions. [2021-11-05 20:05:45,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2021-11-05 20:05:45,835 INFO L276 IsEmpty]: Start isEmpty. Operand 24510 states and 30711 transitions. [2021-11-05 20:05:45,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-05 20:05:45,846 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:45,846 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:05:45,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-05 20:05:45,846 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:45,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:45,847 INFO L85 PathProgramCache]: Analyzing trace with hash -191735279, now seen corresponding path program 1 times [2021-11-05 20:05:45,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:45,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146476393] [2021-11-05 20:05:45,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:45,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:46,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:05:46,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:46,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146476393] [2021-11-05 20:05:46,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146476393] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:46,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:46,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:46,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848400997] [2021-11-05 20:05:46,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:46,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:05:46,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:46,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:05:46,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:05:46,076 INFO L87 Difference]: Start difference. First operand 24510 states and 30711 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2021-11-05 20:05:48,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:05:51,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:05:51,696 INFO L93 Difference]: Finished difference Result 61632 states and 77368 transitions. [2021-11-05 20:05:51,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:05:51,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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 171 [2021-11-05 20:05:51,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:05:51,764 INFO L225 Difference]: With dead ends: 61632 [2021-11-05 20:05:51,764 INFO L226 Difference]: Without dead ends: 37166 [2021-11-05 20:05:51,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.35ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:05:51,793 INFO L933 BasicCegarLoop]: 6493 mSDtfsCounter, 5016 mSDsluCounter, 5909 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2220.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5016 SdHoareTripleChecker+Valid, 12402 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.71ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2428.27ms IncrementalHoareTripleChecker+Time [2021-11-05 20:05:51,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5016 Valid, 12402 Invalid, 80 Unknown, 0 Unchecked, 13.71ms Time], IncrementalHoareTripleChecker [18 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 2428.27ms Time] [2021-11-05 20:05:51,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37166 states. [2021-11-05 20:05:54,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37166 to 36088. [2021-11-05 20:05:54,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36088 states, 36074 states have (on average 1.2571658258025171) internal successors, (45351), 36087 states have internal predecessors, (45351), 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) [2021-11-05 20:05:54,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36088 states to 36088 states and 45351 transitions. [2021-11-05 20:05:54,404 INFO L78 Accepts]: Start accepts. Automaton has 36088 states and 45351 transitions. Word has length 171 [2021-11-05 20:05:54,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:05:54,404 INFO L470 AbstractCegarLoop]: Abstraction has 36088 states and 45351 transitions. [2021-11-05 20:05:54,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2021-11-05 20:05:54,405 INFO L276 IsEmpty]: Start isEmpty. Operand 36088 states and 45351 transitions. [2021-11-05 20:05:54,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-05 20:05:54,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:05:54,421 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:05:54,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-05 20:05:54,421 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:05:54,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:05:54,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1300646843, now seen corresponding path program 1 times [2021-11-05 20:05:54,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:05:54,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820293279] [2021-11-05 20:05:54,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:05:54,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:05:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:05:54,876 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-05 20:05:54,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:05:54,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820293279] [2021-11-05 20:05:54,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820293279] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:05:54,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:05:54,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:05:54,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139587740] [2021-11-05 20:05:54,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:05:54,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:05:54,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:05:54,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:05:54,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:05:54,880 INFO L87 Difference]: Start difference. First operand 36088 states and 45351 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2021-11-05 20:05:56,969 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:06:00,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:06:00,988 INFO L93 Difference]: Finished difference Result 84660 states and 106328 transitions. [2021-11-05 20:06:00,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:06:00,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 174 [2021-11-05 20:06:00,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:06:01,077 INFO L225 Difference]: With dead ends: 84660 [2021-11-05 20:06:01,078 INFO L226 Difference]: Without dead ends: 48616 [2021-11-05 20:06:01,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:06:01,126 INFO L933 BasicCegarLoop]: 6337 mSDtfsCounter, 4577 mSDsluCounter, 6267 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2203.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4577 SdHoareTripleChecker+Valid, 12604 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.89ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2398.35ms IncrementalHoareTripleChecker+Time [2021-11-05 20:06:01,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4577 Valid, 12604 Invalid, 60 Unknown, 0 Unchecked, 11.89ms Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 1 Unknown, 0 Unchecked, 2398.35ms Time] [2021-11-05 20:06:01,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48616 states. [2021-11-05 20:06:04,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48616 to 47538. [2021-11-05 20:06:04,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47538 states, 47524 states have (on average 1.2566071879471425) internal successors, (59719), 47537 states have internal predecessors, (59719), 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) [2021-11-05 20:06:04,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47538 states to 47538 states and 59719 transitions. [2021-11-05 20:06:04,646 INFO L78 Accepts]: Start accepts. Automaton has 47538 states and 59719 transitions. Word has length 174 [2021-11-05 20:06:04,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:06:04,646 INFO L470 AbstractCegarLoop]: Abstraction has 47538 states and 59719 transitions. [2021-11-05 20:06:04,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2021-11-05 20:06:04,647 INFO L276 IsEmpty]: Start isEmpty. Operand 47538 states and 59719 transitions. [2021-11-05 20:06:04,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-05 20:06:04,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:06:04,651 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:06:04,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-05 20:06:04,651 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:06:04,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:06:04,652 INFO L85 PathProgramCache]: Analyzing trace with hash -423741171, now seen corresponding path program 1 times [2021-11-05 20:06:04,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:06:04,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7628863] [2021-11-05 20:06:04,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:06:04,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:06:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:06:05,118 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 20:06:05,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:06:05,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7628863] [2021-11-05 20:06:05,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7628863] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:06:05,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:06:05,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:06:05,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131318182] [2021-11-05 20:06:05,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:06:05,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:06:05,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:06:05,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:06:05,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:06:05,121 INFO L87 Difference]: Start difference. First operand 47538 states and 59719 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2021-11-05 20:06:07,209 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:06:11,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:06:11,322 INFO L93 Difference]: Finished difference Result 99636 states and 125287 transitions. [2021-11-05 20:06:11,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:06:11,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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 192 [2021-11-05 20:06:11,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:06:11,417 INFO L225 Difference]: With dead ends: 99636 [2021-11-05 20:06:11,417 INFO L226 Difference]: Without dead ends: 52142 [2021-11-05 20:06:11,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:06:11,472 INFO L933 BasicCegarLoop]: 8173 mSDtfsCounter, 3002 mSDsluCounter, 5120 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2180.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3002 SdHoareTripleChecker+Valid, 13293 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.52ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2375.51ms IncrementalHoareTripleChecker+Time [2021-11-05 20:06:11,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3002 Valid, 13293 Invalid, 85 Unknown, 0 Unchecked, 10.52ms Time], IncrementalHoareTripleChecker [16 Valid, 68 Invalid, 1 Unknown, 0 Unchecked, 2375.51ms Time] [2021-11-05 20:06:11,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52142 states. [2021-11-05 20:06:15,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52142 to 52086. [2021-11-05 20:06:15,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52086 states, 52072 states have (on average 1.2558956829005992) internal successors, (65397), 52085 states have internal predecessors, (65397), 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) [2021-11-05 20:06:15,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52086 states to 52086 states and 65397 transitions. [2021-11-05 20:06:15,516 INFO L78 Accepts]: Start accepts. Automaton has 52086 states and 65397 transitions. Word has length 192 [2021-11-05 20:06:15,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:06:15,517 INFO L470 AbstractCegarLoop]: Abstraction has 52086 states and 65397 transitions. [2021-11-05 20:06:15,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2021-11-05 20:06:15,517 INFO L276 IsEmpty]: Start isEmpty. Operand 52086 states and 65397 transitions. [2021-11-05 20:06:15,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-11-05 20:06:15,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:06:15,521 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:06:15,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-05 20:06:15,522 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 20:06:15,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:06:15,522 INFO L85 PathProgramCache]: Analyzing trace with hash 691487055, now seen corresponding path program 1 times [2021-11-05 20:06:15,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:06:15,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889548142] [2021-11-05 20:06:15,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:06:15,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:06:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:06:15,864 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:06:15,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:06:15,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889548142] [2021-11-05 20:06:15,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889548142] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:06:15,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:06:15,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:06:15,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570484593] [2021-11-05 20:06:15,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:06:15,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:06:15,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:06:15,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:06:15,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:06:15,867 INFO L87 Difference]: Start difference. First operand 52086 states and 65397 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2021-11-05 20:06:17,955 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:06:23,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:06:23,082 INFO L93 Difference]: Finished difference Result 108708 states and 136595 transitions. [2021-11-05 20:06:23,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:06:23,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 247 [2021-11-05 20:06:23,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:06:23,186 INFO L225 Difference]: With dead ends: 108708 [2021-11-05 20:06:23,186 INFO L226 Difference]: Without dead ends: 56666 [2021-11-05 20:06:23,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.44ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:06:23,241 INFO L933 BasicCegarLoop]: 6551 mSDtfsCounter, 1858 mSDsluCounter, 6262 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2196.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1858 SdHoareTripleChecker+Valid, 12813 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.59ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2376.33ms IncrementalHoareTripleChecker+Time [2021-11-05 20:06:23,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1858 Valid, 12813 Invalid, 81 Unknown, 0 Unchecked, 9.59ms Time], IncrementalHoareTripleChecker [12 Valid, 68 Invalid, 1 Unknown, 0 Unchecked, 2376.33ms Time] [2021-11-05 20:06:23,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56666 states.