/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:45:36,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:45:36,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:45:36,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:45:36,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:45:36,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:45:36,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:45:36,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:45:36,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:45:36,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:45:36,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:45:36,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:45:36,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:45:36,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:45:36,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:45:36,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:45:36,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:45:36,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:45:36,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:45:36,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:45:36,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:45:36,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:45:36,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:45:36,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:45:36,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:45:36,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:45:36,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:45:36,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:45:36,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:45:36,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:45:36,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:45:36,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:45:36,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:45:36,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:45:36,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:45:36,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:45:36,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:45:36,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:45:36,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:45:36,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:45:36,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:45:36,426 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:45:36,459 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:45:36,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:45:36,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:45:36,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:45:36,465 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:45:36,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:45:36,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:45:36,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:45:36,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:45:36,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:45:36,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:45:36,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:45:36,469 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:45:36,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:45:36,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:45:36,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:45:36,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:45:36,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:45:36,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:45:36,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:45:36,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:45:36,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:45:36,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:45:36,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:45:36,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:45:36,473 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:45:36,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:45:36,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:45:36,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:45:36,920 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:45:36,921 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:45:36,922 INFO L432 ainManager$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-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2020-12-22 15:45:37,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3e88f5e2/f531141b9a7247a583d3238f018b22e2/FLAG5659edc5a [2020-12-22 15:45:38,351 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:45:38,351 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2020-12-22 15:45:38,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3e88f5e2/f531141b9a7247a583d3238f018b22e2/FLAG5659edc5a [2020-12-22 15:45:38,635 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3e88f5e2/f531141b9a7247a583d3238f018b22e2 [2020-12-22 15:45:38,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:45:38,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:45:38,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:45:38,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:45:38,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:45:38,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:45:38" (1/1) ... [2020-12-22 15:45:38,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3685043f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:38, skipping insertion in model container [2020-12-22 15:45:38,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:45:38" (1/1) ... [2020-12-22 15:45:38,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:45:38,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:45:41,913 WARN L226 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-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2020-12-22 15:45:41,917 WARN L226 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-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2020-12-22 15:45:41,918 WARN L226 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-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2020-12-22 15:45:41,919 WARN L226 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-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2020-12-22 15:45:41,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:45:42,041 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:45:42,457 WARN L226 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-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2020-12-22 15:45:42,458 WARN L226 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-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2020-12-22 15:45:42,458 WARN L226 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-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2020-12-22 15:45:42,459 WARN L226 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-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2020-12-22 15:45:42,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:45:43,244 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:45:43,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:43 WrapperNode [2020-12-22 15:45:43,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:45:43,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:45:43,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:45:43,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:45:43,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:43" (1/1) ... [2020-12-22 15:45:43,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:43" (1/1) ... [2020-12-22 15:45:44,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:45:44,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:45:44,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:45:44,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:45:44,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:43" (1/1) ... [2020-12-22 15:45:44,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:43" (1/1) ... [2020-12-22 15:45:44,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:43" (1/1) ... [2020-12-22 15:45:44,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:43" (1/1) ... [2020-12-22 15:45:45,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:43" (1/1) ... [2020-12-22 15:45:45,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:43" (1/1) ... [2020-12-22 15:45:45,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:43" (1/1) ... [2020-12-22 15:45:45,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:45:45,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:45:45,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:45:45,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:45:45,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:45:45,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:45:45,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:45:45,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:45:45,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:45:45,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:45:45,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:45:45,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:45:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:45:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:45:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:45:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:45:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:45:45,850 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2020-12-22 15:45:45,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:45:45,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:45:45,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:46:05,124 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 15:46:05,124 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2020-12-22 15:46:05,125 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 15:46:05,126 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 15:46:05,127 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 15:46:05,128 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 15:46:05,178 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:46:05,179 INFO L299 CfgBuilder]: Removed 4958 assume(true) statements. [2020-12-22 15:46:05,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:46:05 BoogieIcfgContainer [2020-12-22 15:46:05,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:46:05,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:46:05,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:46:05,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:46:05,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:45:38" (1/3) ... [2020-12-22 15:46:05,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6167cf92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:46:05, skipping insertion in model container [2020-12-22 15:46:05,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:43" (2/3) ... [2020-12-22 15:46:05,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6167cf92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:46:05, skipping insertion in model container [2020-12-22 15:46:05,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:46:05" (3/3) ... [2020-12-22 15:46:05,200 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2020-12-22 15:46:05,207 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:46:05,215 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 24 error locations. [2020-12-22 15:46:05,237 INFO L253 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2020-12-22 15:46:05,282 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:46:05,283 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:46:05,283 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:46:05,283 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:46:05,283 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:46:05,283 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:46:05,283 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:46:05,283 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:46:05,364 INFO L276 IsEmpty]: Start isEmpty. Operand 4079 states. [2020-12-22 15:46:05,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 15:46:05,376 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:46:05,377 INFO L422 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] [2020-12-22 15:46:05,378 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:46:05,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:46:05,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1375132322, now seen corresponding path program 1 times [2020-12-22 15:46:05,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:46:05,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767827298] [2020-12-22 15:46:05,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:46:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:46:06,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:46:06,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767827298] [2020-12-22 15:46:06,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:46:06,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:46:06,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600708248] [2020-12-22 15:46:06,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:46:06,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:46:06,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:46:06,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:06,118 INFO L87 Difference]: Start difference. First operand 4079 states. Second operand 3 states. [2020-12-22 15:46:08,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:46:08,543 INFO L93 Difference]: Finished difference Result 11185 states and 14484 transitions. [2020-12-22 15:46:08,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:46:08,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2020-12-22 15:46:08,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:46:08,601 INFO L225 Difference]: With dead ends: 11185 [2020-12-22 15:46:08,601 INFO L226 Difference]: Without dead ends: 6960 [2020-12-22 15:46:08,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:08,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6960 states. [2020-12-22 15:46:08,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6960 to 6615. [2020-12-22 15:46:08,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6615 states. [2020-12-22 15:46:08,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6615 states to 6615 states and 8255 transitions. [2020-12-22 15:46:08,926 INFO L78 Accepts]: Start accepts. Automaton has 6615 states and 8255 transitions. Word has length 41 [2020-12-22 15:46:08,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:46:08,927 INFO L481 AbstractCegarLoop]: Abstraction has 6615 states and 8255 transitions. [2020-12-22 15:46:08,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:46:08,927 INFO L276 IsEmpty]: Start isEmpty. Operand 6615 states and 8255 transitions. [2020-12-22 15:46:08,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-22 15:46:08,930 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:46:08,930 INFO L422 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] [2020-12-22 15:46:08,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:46:08,931 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:46:08,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:46:08,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1114883933, now seen corresponding path program 1 times [2020-12-22 15:46:08,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:46:08,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403630222] [2020-12-22 15:46:08,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:46:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:46:09,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:46:09,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403630222] [2020-12-22 15:46:09,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:46:09,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:46:09,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867659976] [2020-12-22 15:46:09,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:46:09,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:46:09,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:46:09,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:09,144 INFO L87 Difference]: Start difference. First operand 6615 states and 8255 transitions. Second operand 3 states. [2020-12-22 15:46:10,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:46:10,691 INFO L93 Difference]: Finished difference Result 19575 states and 24476 transitions. [2020-12-22 15:46:10,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:46:10,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2020-12-22 15:46:10,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:46:10,773 INFO L225 Difference]: With dead ends: 19575 [2020-12-22 15:46:10,773 INFO L226 Difference]: Without dead ends: 13028 [2020-12-22 15:46:10,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:10,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13028 states. [2020-12-22 15:46:11,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13028 to 13004. [2020-12-22 15:46:11,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13004 states. [2020-12-22 15:46:11,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13004 states to 13004 states and 16271 transitions. [2020-12-22 15:46:11,452 INFO L78 Accepts]: Start accepts. Automaton has 13004 states and 16271 transitions. Word has length 42 [2020-12-22 15:46:11,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:46:11,454 INFO L481 AbstractCegarLoop]: Abstraction has 13004 states and 16271 transitions. [2020-12-22 15:46:11,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:46:11,454 INFO L276 IsEmpty]: Start isEmpty. Operand 13004 states and 16271 transitions. [2020-12-22 15:46:11,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 15:46:11,460 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:46:11,460 INFO L422 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] [2020-12-22 15:46:11,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:46:11,461 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:46:11,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:46:11,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1793047480, now seen corresponding path program 1 times [2020-12-22 15:46:11,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:46:11,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150511071] [2020-12-22 15:46:11,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:46:11,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:46:11,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:46:11,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150511071] [2020-12-22 15:46:11,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:46:11,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:46:11,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852982061] [2020-12-22 15:46:11,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:46:11,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:46:11,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:46:11,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:11,632 INFO L87 Difference]: Start difference. First operand 13004 states and 16271 transitions. Second operand 3 states. [2020-12-22 15:46:13,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:46:13,068 INFO L93 Difference]: Finished difference Result 22789 states and 28625 transitions. [2020-12-22 15:46:13,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:46:13,069 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-12-22 15:46:13,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:46:13,140 INFO L225 Difference]: With dead ends: 22789 [2020-12-22 15:46:13,140 INFO L226 Difference]: Without dead ends: 9853 [2020-12-22 15:46:13,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:13,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9853 states. [2020-12-22 15:46:13,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9853 to 9799. [2020-12-22 15:46:13,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9799 states. [2020-12-22 15:46:13,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9799 states to 9799 states and 12337 transitions. [2020-12-22 15:46:13,675 INFO L78 Accepts]: Start accepts. Automaton has 9799 states and 12337 transitions. Word has length 48 [2020-12-22 15:46:13,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:46:13,676 INFO L481 AbstractCegarLoop]: Abstraction has 9799 states and 12337 transitions. [2020-12-22 15:46:13,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:46:13,677 INFO L276 IsEmpty]: Start isEmpty. Operand 9799 states and 12337 transitions. [2020-12-22 15:46:13,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 15:46:13,680 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:46:13,681 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:46:13,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:46:13,681 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:46:13,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:46:13,682 INFO L82 PathProgramCache]: Analyzing trace with hash -83071518, now seen corresponding path program 1 times [2020-12-22 15:46:13,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:46:13,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100183596] [2020-12-22 15:46:13,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:46:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:46:13,952 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:46:13,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100183596] [2020-12-22 15:46:13,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:46:13,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:46:13,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881064107] [2020-12-22 15:46:13,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:46:13,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:46:13,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:46:13,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:13,955 INFO L87 Difference]: Start difference. First operand 9799 states and 12337 transitions. Second operand 3 states. [2020-12-22 15:46:15,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:46:15,375 INFO L93 Difference]: Finished difference Result 27459 states and 34586 transitions. [2020-12-22 15:46:15,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:46:15,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-12-22 15:46:15,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:46:15,428 INFO L225 Difference]: With dead ends: 27459 [2020-12-22 15:46:15,429 INFO L226 Difference]: Without dead ends: 18527 [2020-12-22 15:46:15,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:15,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18527 states. [2020-12-22 15:46:15,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18527 to 18503. [2020-12-22 15:46:15,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18503 states. [2020-12-22 15:46:16,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18503 states to 18503 states and 23319 transitions. [2020-12-22 15:46:16,105 INFO L78 Accepts]: Start accepts. Automaton has 18503 states and 23319 transitions. Word has length 71 [2020-12-22 15:46:16,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:46:16,108 INFO L481 AbstractCegarLoop]: Abstraction has 18503 states and 23319 transitions. [2020-12-22 15:46:16,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:46:16,111 INFO L276 IsEmpty]: Start isEmpty. Operand 18503 states and 23319 transitions. [2020-12-22 15:46:16,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 15:46:16,117 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:46:16,118 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:46:16,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:46:16,119 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:46:16,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:46:16,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1362935196, now seen corresponding path program 1 times [2020-12-22 15:46:16,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:46:16,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476994486] [2020-12-22 15:46:16,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:46:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:46:16,347 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:46:16,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476994486] [2020-12-22 15:46:16,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:46:16,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:46:16,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083186803] [2020-12-22 15:46:16,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:46:16,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:46:16,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:46:16,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:16,352 INFO L87 Difference]: Start difference. First operand 18503 states and 23319 transitions. Second operand 3 states. [2020-12-22 15:46:17,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:46:17,434 INFO L93 Difference]: Finished difference Result 44871 states and 56558 transitions. [2020-12-22 15:46:17,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:46:17,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-12-22 15:46:17,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:46:17,510 INFO L225 Difference]: With dead ends: 44871 [2020-12-22 15:46:17,510 INFO L226 Difference]: Without dead ends: 27235 [2020-12-22 15:46:17,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:17,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27235 states. [2020-12-22 15:46:18,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27235 to 27190. [2020-12-22 15:46:18,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27190 states. [2020-12-22 15:46:18,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27190 states to 27190 states and 34284 transitions. [2020-12-22 15:46:18,477 INFO L78 Accepts]: Start accepts. Automaton has 27190 states and 34284 transitions. Word has length 71 [2020-12-22 15:46:18,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:46:18,478 INFO L481 AbstractCegarLoop]: Abstraction has 27190 states and 34284 transitions. [2020-12-22 15:46:18,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:46:18,478 INFO L276 IsEmpty]: Start isEmpty. Operand 27190 states and 34284 transitions. [2020-12-22 15:46:18,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 15:46:18,481 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:46:18,482 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:46:18,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:46:18,483 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:46:18,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:46:18,483 INFO L82 PathProgramCache]: Analyzing trace with hash -2047198752, now seen corresponding path program 1 times [2020-12-22 15:46:18,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:46:18,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016008297] [2020-12-22 15:46:18,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:46:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:46:18,800 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 15:46:18,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016008297] [2020-12-22 15:46:18,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:46:18,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:46:18,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492513093] [2020-12-22 15:46:18,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:46:18,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:46:18,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:46:18,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:46:18,803 INFO L87 Difference]: Start difference. First operand 27190 states and 34284 transitions. Second operand 4 states. [2020-12-22 15:46:19,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:46:19,575 INFO L93 Difference]: Finished difference Result 27190 states and 34284 transitions. [2020-12-22 15:46:19,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 15:46:19,576 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2020-12-22 15:46:19,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:46:19,639 INFO L225 Difference]: With dead ends: 27190 [2020-12-22 15:46:19,640 INFO L226 Difference]: Without dead ends: 27184 [2020-12-22 15:46:19,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:46:19,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27184 states. [2020-12-22 15:46:20,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27184 to 27184. [2020-12-22 15:46:20,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27184 states. [2020-12-22 15:46:20,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27184 states to 27184 states and 34278 transitions. [2020-12-22 15:46:20,645 INFO L78 Accepts]: Start accepts. Automaton has 27184 states and 34278 transitions. Word has length 72 [2020-12-22 15:46:20,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:46:20,647 INFO L481 AbstractCegarLoop]: Abstraction has 27184 states and 34278 transitions. [2020-12-22 15:46:20,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:46:20,647 INFO L276 IsEmpty]: Start isEmpty. Operand 27184 states and 34278 transitions. [2020-12-22 15:46:20,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-22 15:46:20,650 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:46:20,651 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:46:20,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 15:46:20,651 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:46:20,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:46:20,652 INFO L82 PathProgramCache]: Analyzing trace with hash -262838269, now seen corresponding path program 1 times [2020-12-22 15:46:20,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:46:20,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824988793] [2020-12-22 15:46:20,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:46:20,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:46:20,899 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 15:46:20,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824988793] [2020-12-22 15:46:20,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:46:20,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:46:20,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413747191] [2020-12-22 15:46:20,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:46:20,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:46:20,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:46:20,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:46:20,902 INFO L87 Difference]: Start difference. First operand 27184 states and 34278 transitions. Second operand 4 states. [2020-12-22 15:46:21,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:46:21,876 INFO L93 Difference]: Finished difference Result 27184 states and 34278 transitions. [2020-12-22 15:46:21,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 15:46:21,877 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 74 [2020-12-22 15:46:21,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:46:21,938 INFO L225 Difference]: With dead ends: 27184 [2020-12-22 15:46:21,938 INFO L226 Difference]: Without dead ends: 27178 [2020-12-22 15:46:21,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:46:21,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27178 states. [2020-12-22 15:46:22,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27178 to 27178. [2020-12-22 15:46:22,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27178 states. [2020-12-22 15:46:22,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27178 states to 27178 states and 34272 transitions. [2020-12-22 15:46:22,777 INFO L78 Accepts]: Start accepts. Automaton has 27178 states and 34272 transitions. Word has length 74 [2020-12-22 15:46:22,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:46:22,777 INFO L481 AbstractCegarLoop]: Abstraction has 27178 states and 34272 transitions. [2020-12-22 15:46:22,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:46:22,778 INFO L276 IsEmpty]: Start isEmpty. Operand 27178 states and 34272 transitions. [2020-12-22 15:46:22,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 15:46:22,781 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:46:22,781 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:46:22,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 15:46:22,781 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:46:22,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:46:22,782 INFO L82 PathProgramCache]: Analyzing trace with hash 815635110, now seen corresponding path program 1 times [2020-12-22 15:46:22,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:46:22,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188356205] [2020-12-22 15:46:22,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:46:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:46:23,166 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 15:46:23,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188356205] [2020-12-22 15:46:23,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:46:23,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:46:23,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835261495] [2020-12-22 15:46:23,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:46:23,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:46:23,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:46:23,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:46:23,175 INFO L87 Difference]: Start difference. First operand 27178 states and 34272 transitions. Second operand 4 states. [2020-12-22 15:46:23,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:46:23,987 INFO L93 Difference]: Finished difference Result 27178 states and 34272 transitions. [2020-12-22 15:46:23,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 15:46:23,988 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 76 [2020-12-22 15:46:23,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:46:24,045 INFO L225 Difference]: With dead ends: 27178 [2020-12-22 15:46:24,045 INFO L226 Difference]: Without dead ends: 27172 [2020-12-22 15:46:24,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:46:24,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27172 states. [2020-12-22 15:46:25,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27172 to 27172. [2020-12-22 15:46:25,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27172 states. [2020-12-22 15:46:25,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27172 states to 27172 states and 34266 transitions. [2020-12-22 15:46:25,109 INFO L78 Accepts]: Start accepts. Automaton has 27172 states and 34266 transitions. Word has length 76 [2020-12-22 15:46:25,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:46:25,110 INFO L481 AbstractCegarLoop]: Abstraction has 27172 states and 34266 transitions. [2020-12-22 15:46:25,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:46:25,110 INFO L276 IsEmpty]: Start isEmpty. Operand 27172 states and 34266 transitions. [2020-12-22 15:46:25,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 15:46:25,114 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:46:25,115 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:46:25,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 15:46:25,115 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:46:25,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:46:25,116 INFO L82 PathProgramCache]: Analyzing trace with hash 2141434313, now seen corresponding path program 1 times [2020-12-22 15:46:25,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:46:25,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741737421] [2020-12-22 15:46:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:46:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:46:25,377 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 15:46:25,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741737421] [2020-12-22 15:46:25,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:46:25,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:46:25,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242799990] [2020-12-22 15:46:25,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:46:25,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:46:25,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:46:25,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:46:25,380 INFO L87 Difference]: Start difference. First operand 27172 states and 34266 transitions. Second operand 4 states. [2020-12-22 15:46:26,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:46:26,255 INFO L93 Difference]: Finished difference Result 27172 states and 34266 transitions. [2020-12-22 15:46:26,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 15:46:26,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2020-12-22 15:46:26,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:46:26,301 INFO L225 Difference]: With dead ends: 27172 [2020-12-22 15:46:26,301 INFO L226 Difference]: Without dead ends: 26327 [2020-12-22 15:46:26,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:46:26,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26327 states. [2020-12-22 15:46:27,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26327 to 26327. [2020-12-22 15:46:27,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26327 states. [2020-12-22 15:46:27,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26327 states to 26327 states and 33178 transitions. [2020-12-22 15:46:27,215 INFO L78 Accepts]: Start accepts. Automaton has 26327 states and 33178 transitions. Word has length 78 [2020-12-22 15:46:27,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:46:27,215 INFO L481 AbstractCegarLoop]: Abstraction has 26327 states and 33178 transitions. [2020-12-22 15:46:27,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:46:27,216 INFO L276 IsEmpty]: Start isEmpty. Operand 26327 states and 33178 transitions. [2020-12-22 15:46:27,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 15:46:27,220 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:46:27,220 INFO L422 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, 1, 1] [2020-12-22 15:46:27,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 15:46:27,220 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:46:27,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:46:27,221 INFO L82 PathProgramCache]: Analyzing trace with hash 124598911, now seen corresponding path program 1 times [2020-12-22 15:46:27,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:46:27,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277449923] [2020-12-22 15:46:27,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:46:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:46:27,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:46:27,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277449923] [2020-12-22 15:46:27,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:46:27,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:46:27,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804976318] [2020-12-22 15:46:27,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:46:27,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:46:27,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:46:27,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:27,388 INFO L87 Difference]: Start difference. First operand 26327 states and 33178 transitions. Second operand 3 states. [2020-12-22 15:46:30,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:46:30,166 INFO L93 Difference]: Finished difference Result 58816 states and 74329 transitions. [2020-12-22 15:46:30,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:46:30,166 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2020-12-22 15:46:30,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:46:30,222 INFO L225 Difference]: With dead ends: 58816 [2020-12-22 15:46:30,222 INFO L226 Difference]: Without dead ends: 33356 [2020-12-22 15:46:30,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:30,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33356 states. [2020-12-22 15:46:31,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33356 to 33332. [2020-12-22 15:46:31,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33332 states. [2020-12-22 15:46:31,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33332 states to 33332 states and 42148 transitions. [2020-12-22 15:46:31,338 INFO L78 Accepts]: Start accepts. Automaton has 33332 states and 42148 transitions. Word has length 80 [2020-12-22 15:46:31,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:46:31,339 INFO L481 AbstractCegarLoop]: Abstraction has 33332 states and 42148 transitions. [2020-12-22 15:46:31,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:46:31,339 INFO L276 IsEmpty]: Start isEmpty. Operand 33332 states and 42148 transitions. [2020-12-22 15:46:31,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-22 15:46:31,355 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:46:31,356 INFO L422 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] [2020-12-22 15:46:31,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 15:46:31,356 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:46:31,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:46:31,357 INFO L82 PathProgramCache]: Analyzing trace with hash 512191264, now seen corresponding path program 1 times [2020-12-22 15:46:31,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:46:31,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738688498] [2020-12-22 15:46:31,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:46:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:46:31,762 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 15:46:31,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738688498] [2020-12-22 15:46:31,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:46:31,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:46:31,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724847912] [2020-12-22 15:46:31,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:46:31,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:46:31,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:46:31,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:31,772 INFO L87 Difference]: Start difference. First operand 33332 states and 42148 transitions. Second operand 3 states. [2020-12-22 15:46:35,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:46:35,336 INFO L93 Difference]: Finished difference Result 72802 states and 92221 transitions. [2020-12-22 15:46:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:46:35,337 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2020-12-22 15:46:35,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:46:35,393 INFO L225 Difference]: With dead ends: 72802 [2020-12-22 15:46:35,393 INFO L226 Difference]: Without dead ends: 39551 [2020-12-22 15:46:35,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:35,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39551 states. [2020-12-22 15:46:36,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39551 to 39527. [2020-12-22 15:46:36,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39527 states. [2020-12-22 15:46:36,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39527 states to 39527 states and 50077 transitions. [2020-12-22 15:46:36,670 INFO L78 Accepts]: Start accepts. Automaton has 39527 states and 50077 transitions. Word has length 117 [2020-12-22 15:46:36,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:46:36,670 INFO L481 AbstractCegarLoop]: Abstraction has 39527 states and 50077 transitions. [2020-12-22 15:46:36,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:46:36,670 INFO L276 IsEmpty]: Start isEmpty. Operand 39527 states and 50077 transitions. [2020-12-22 15:46:36,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-22 15:46:36,684 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:46:36,684 INFO L422 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] [2020-12-22 15:46:36,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 15:46:36,685 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:46:36,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:46:36,685 INFO L82 PathProgramCache]: Analyzing trace with hash 934893090, now seen corresponding path program 1 times [2020-12-22 15:46:36,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:46:36,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987974115] [2020-12-22 15:46:36,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:46:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:46:36,992 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 15:46:36,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987974115] [2020-12-22 15:46:36,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:46:36,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:46:36,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695798964] [2020-12-22 15:46:36,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:46:36,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:46:36,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:46:36,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:36,995 INFO L87 Difference]: Start difference. First operand 39527 states and 50077 transitions. Second operand 3 states. [2020-12-22 15:46:39,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:46:39,914 INFO L93 Difference]: Finished difference Result 85210 states and 108115 transitions. [2020-12-22 15:46:39,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:46:39,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2020-12-22 15:46:39,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:46:39,971 INFO L225 Difference]: With dead ends: 85210 [2020-12-22 15:46:39,971 INFO L226 Difference]: Without dead ends: 46550 [2020-12-22 15:46:40,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:40,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46550 states. [2020-12-22 15:46:41,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46550 to 46526. [2020-12-22 15:46:41,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46526 states. [2020-12-22 15:46:41,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46526 states to 46526 states and 59041 transitions. [2020-12-22 15:46:41,432 INFO L78 Accepts]: Start accepts. Automaton has 46526 states and 59041 transitions. Word has length 117 [2020-12-22 15:46:41,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:46:41,433 INFO L481 AbstractCegarLoop]: Abstraction has 46526 states and 59041 transitions. [2020-12-22 15:46:41,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:46:41,433 INFO L276 IsEmpty]: Start isEmpty. Operand 46526 states and 59041 transitions. [2020-12-22 15:46:41,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-12-22 15:46:41,450 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:46:41,450 INFO L422 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] [2020-12-22 15:46:41,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 15:46:41,450 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:46:41,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:46:41,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1208625008, now seen corresponding path program 1 times [2020-12-22 15:46:41,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:46:41,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118556080] [2020-12-22 15:46:41,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:46:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:46:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-12-22 15:46:41,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118556080] [2020-12-22 15:46:41,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:46:41,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:46:41,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872856108] [2020-12-22 15:46:41,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:46:41,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:46:41,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:46:41,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:41,642 INFO L87 Difference]: Start difference. First operand 46526 states and 59041 transitions. Second operand 3 states. [2020-12-22 15:46:44,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:46:44,302 INFO L93 Difference]: Finished difference Result 99196 states and 126019 transitions. [2020-12-22 15:46:44,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:46:44,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2020-12-22 15:46:44,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:46:44,380 INFO L225 Difference]: With dead ends: 99196 [2020-12-22 15:46:44,380 INFO L226 Difference]: Without dead ends: 53537 [2020-12-22 15:46:44,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:44,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53537 states. [2020-12-22 15:46:46,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53537 to 53513. [2020-12-22 15:46:46,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53513 states. [2020-12-22 15:46:46,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53513 states to 53513 states and 67993 transitions. [2020-12-22 15:46:46,268 INFO L78 Accepts]: Start accepts. Automaton has 53513 states and 67993 transitions. Word has length 152 [2020-12-22 15:46:46,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:46:46,268 INFO L481 AbstractCegarLoop]: Abstraction has 53513 states and 67993 transitions. [2020-12-22 15:46:46,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:46:46,269 INFO L276 IsEmpty]: Start isEmpty. Operand 53513 states and 67993 transitions. [2020-12-22 15:46:46,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-12-22 15:46:46,282 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:46:46,282 INFO L422 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] [2020-12-22 15:46:46,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 15:46:46,283 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:46:46,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:46:46,284 INFO L82 PathProgramCache]: Analyzing trace with hash -785923182, now seen corresponding path program 1 times [2020-12-22 15:46:46,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:46:46,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285183286] [2020-12-22 15:46:46,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:46:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:46:46,483 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-12-22 15:46:46,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285183286] [2020-12-22 15:46:46,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:46:46,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:46:46,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382023126] [2020-12-22 15:46:46,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:46:46,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:46:46,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:46:46,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:46,486 INFO L87 Difference]: Start difference. First operand 53513 states and 67993 transitions. Second operand 3 states. [2020-12-22 15:46:50,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:46:50,703 INFO L93 Difference]: Finished difference Result 113176 states and 143935 transitions. [2020-12-22 15:46:50,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:46:50,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2020-12-22 15:46:50,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:46:50,811 INFO L225 Difference]: With dead ends: 113176 [2020-12-22 15:46:50,811 INFO L226 Difference]: Without dead ends: 60530 [2020-12-22 15:46:50,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:46:50,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60530 states. [2020-12-22 15:46:52,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60530 to 60506. [2020-12-22 15:46:52,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60506 states. [2020-12-22 15:46:52,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60506 states to 60506 states and 76951 transitions. [2020-12-22 15:46:52,683 INFO L78 Accepts]: Start accepts. Automaton has 60506 states and 76951 transitions. Word has length 152 [2020-12-22 15:46:52,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:46:52,683 INFO L481 AbstractCegarLoop]: Abstraction has 60506 states and 76951 transitions. [2020-12-22 15:46:52,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:46:52,684 INFO L276 IsEmpty]: Start isEmpty. Operand 60506 states and 76951 transitions. [2020-12-22 15:46:52,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-12-22 15:46:52,704 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:46:52,705 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-22 15:46:52,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 15:46:52,705 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:46:52,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:46:52,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1053030962, now seen corresponding path program 1 times [2020-12-22 15:46:52,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:46:52,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119272642] [2020-12-22 15:46:52,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:46:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:46:53,095 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-12-22 15:46:53,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119272642] [2020-12-22 15:46:53,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:46:53,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:46:53,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689134515] [2020-12-22 15:46:53,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:46:53,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:46:53,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:46:53,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:46:53,098 INFO L87 Difference]: Start difference. First operand 60506 states and 76951 transitions. Second operand 4 states. [2020-12-22 15:46:58,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:46:58,396 INFO L93 Difference]: Finished difference Result 186615 states and 237419 transitions. [2020-12-22 15:46:58,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:46:58,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 179 [2020-12-22 15:46:58,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:46:58,615 INFO L225 Difference]: With dead ends: 186615 [2020-12-22 15:46:58,615 INFO L226 Difference]: Without dead ends: 126976 [2020-12-22 15:46:58,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:46:59,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126976 states. [2020-12-22 15:47:01,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126976 to 67457. [2020-12-22 15:47:01,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67457 states. [2020-12-22 15:47:01,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67457 states to 67457 states and 85867 transitions. [2020-12-22 15:47:01,625 INFO L78 Accepts]: Start accepts. Automaton has 67457 states and 85867 transitions. Word has length 179 [2020-12-22 15:47:01,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:47:01,626 INFO L481 AbstractCegarLoop]: Abstraction has 67457 states and 85867 transitions. [2020-12-22 15:47:01,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:47:01,626 INFO L276 IsEmpty]: Start isEmpty. Operand 67457 states and 85867 transitions. [2020-12-22 15:47:01,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-12-22 15:47:01,646 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:47:01,646 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-22 15:47:01,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 15:47:01,647 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:47:01,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:47:01,647 INFO L82 PathProgramCache]: Analyzing trace with hash 944978064, now seen corresponding path program 1 times [2020-12-22 15:47:01,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:47:01,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597021399] [2020-12-22 15:47:01,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:47:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:47:01,830 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-12-22 15:47:01,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597021399] [2020-12-22 15:47:01,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:47:01,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:47:01,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460674499] [2020-12-22 15:47:01,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:47:01,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:47:01,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:47:01,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:47:01,836 INFO L87 Difference]: Start difference. First operand 67457 states and 85867 transitions. Second operand 4 states. [2020-12-22 15:47:07,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:47:07,493 INFO L93 Difference]: Finished difference Result 200547 states and 255311 transitions. [2020-12-22 15:47:07,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:47:07,494 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 180 [2020-12-22 15:47:07,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:47:07,698 INFO L225 Difference]: With dead ends: 200547 [2020-12-22 15:47:07,698 INFO L226 Difference]: Without dead ends: 133957 [2020-12-22 15:47:07,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:47:07,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133957 states. [2020-12-22 15:47:10,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133957 to 74438. [2020-12-22 15:47:10,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74438 states. [2020-12-22 15:47:11,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74438 states to 74438 states and 94813 transitions. [2020-12-22 15:47:11,091 INFO L78 Accepts]: Start accepts. Automaton has 74438 states and 94813 transitions. Word has length 180 [2020-12-22 15:47:11,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:47:11,092 INFO L481 AbstractCegarLoop]: Abstraction has 74438 states and 94813 transitions. [2020-12-22 15:47:11,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:47:11,092 INFO L276 IsEmpty]: Start isEmpty. Operand 74438 states and 94813 transitions. [2020-12-22 15:47:11,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-22 15:47:11,112 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:47:11,113 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-22 15:47:11,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 15:47:11,113 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:47:11,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:47:11,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1883070705, now seen corresponding path program 1 times [2020-12-22 15:47:11,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:47:11,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254098542] [2020-12-22 15:47:11,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:47:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:47:11,306 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-12-22 15:47:11,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254098542] [2020-12-22 15:47:11,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:47:11,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:47:11,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178212614] [2020-12-22 15:47:11,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:47:11,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:47:11,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:47:11,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:47:11,308 INFO L87 Difference]: Start difference. First operand 74438 states and 94813 transitions. Second operand 4 states. [2020-12-22 15:47:16,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:47:16,800 INFO L93 Difference]: Finished difference Result 199612 states and 254260 transitions. [2020-12-22 15:47:16,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:47:16,801 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-22 15:47:16,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:47:17,007 INFO L225 Difference]: With dead ends: 199612 [2020-12-22 15:47:17,007 INFO L226 Difference]: Without dead ends: 126041 [2020-12-22 15:47:17,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:47:17,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126041 states. [2020-12-22 15:47:20,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126041 to 81383. [2020-12-22 15:47:20,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81383 states. [2020-12-22 15:47:21,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81383 states to 81383 states and 103747 transitions. [2020-12-22 15:47:21,100 INFO L78 Accepts]: Start accepts. Automaton has 81383 states and 103747 transitions. Word has length 181 [2020-12-22 15:47:21,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:47:21,100 INFO L481 AbstractCegarLoop]: Abstraction has 81383 states and 103747 transitions. [2020-12-22 15:47:21,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:47:21,101 INFO L276 IsEmpty]: Start isEmpty. Operand 81383 states and 103747 transitions. [2020-12-22 15:47:21,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-12-22 15:47:21,119 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:47:21,119 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-22 15:47:21,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 15:47:21,120 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:47:21,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:47:21,120 INFO L82 PathProgramCache]: Analyzing trace with hash 14690986, now seen corresponding path program 1 times [2020-12-22 15:47:21,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:47:21,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139826566] [2020-12-22 15:47:21,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:47:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:47:21,515 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-12-22 15:47:21,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139826566] [2020-12-22 15:47:21,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:47:21,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:47:21,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449984101] [2020-12-22 15:47:21,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:47:21,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:47:21,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:47:21,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:47:21,518 INFO L87 Difference]: Start difference. First operand 81383 states and 103747 transitions. Second operand 4 states. [2020-12-22 15:47:28,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:47:28,339 INFO L93 Difference]: Finished difference Result 213508 states and 272134 transitions. [2020-12-22 15:47:28,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:47:28,340 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 182 [2020-12-22 15:47:28,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:47:28,539 INFO L225 Difference]: With dead ends: 213508 [2020-12-22 15:47:28,540 INFO L226 Difference]: Without dead ends: 132992 [2020-12-22 15:47:28,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:47:28,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132992 states. [2020-12-22 15:47:33,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132992 to 88334. [2020-12-22 15:47:33,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88334 states. [2020-12-22 15:47:33,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88334 states to 88334 states and 112687 transitions. [2020-12-22 15:47:33,388 INFO L78 Accepts]: Start accepts. Automaton has 88334 states and 112687 transitions. Word has length 182 [2020-12-22 15:47:33,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:47:33,389 INFO L481 AbstractCegarLoop]: Abstraction has 88334 states and 112687 transitions. [2020-12-22 15:47:33,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:47:33,389 INFO L276 IsEmpty]: Start isEmpty. Operand 88334 states and 112687 transitions. [2020-12-22 15:47:33,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-12-22 15:47:33,413 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:47:33,413 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 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] [2020-12-22 15:47:33,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 15:47:33,413 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:47:33,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:47:33,414 INFO L82 PathProgramCache]: Analyzing trace with hash 624205613, now seen corresponding path program 1 times [2020-12-22 15:47:33,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:47:33,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556624665] [2020-12-22 15:47:33,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:47:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:47:33,658 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-12-22 15:47:33,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556624665] [2020-12-22 15:47:33,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:47:33,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:47:33,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683766449] [2020-12-22 15:47:33,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:47:33,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:47:33,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:47:33,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:47:33,663 INFO L87 Difference]: Start difference. First operand 88334 states and 112687 transitions. Second operand 4 states. [2020-12-22 15:47:43,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:47:43,224 INFO L93 Difference]: Finished difference Result 263154 states and 335751 transitions. [2020-12-22 15:47:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:47:43,225 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 203 [2020-12-22 15:47:43,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:47:43,520 INFO L225 Difference]: With dead ends: 263154 [2020-12-22 15:47:43,520 INFO L226 Difference]: Without dead ends: 175687 [2020-12-22 15:47:43,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:47:43,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175687 states. [2020-12-22 15:47:49,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175687 to 95291. [2020-12-22 15:47:49,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95291 states. [2020-12-22 15:47:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95291 states to 95291 states and 121633 transitions. [2020-12-22 15:47:49,619 INFO L78 Accepts]: Start accepts. Automaton has 95291 states and 121633 transitions. Word has length 203 [2020-12-22 15:47:49,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:47:49,619 INFO L481 AbstractCegarLoop]: Abstraction has 95291 states and 121633 transitions. [2020-12-22 15:47:49,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:47:49,619 INFO L276 IsEmpty]: Start isEmpty. Operand 95291 states and 121633 transitions. [2020-12-22 15:47:49,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-12-22 15:47:49,855 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:47:49,856 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 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] [2020-12-22 15:47:49,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 15:47:49,862 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:47:49,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:47:49,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1933114345, now seen corresponding path program 1 times [2020-12-22 15:47:49,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:47:49,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738957508] [2020-12-22 15:47:49,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:47:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:47:50,395 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:47:50,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738957508] [2020-12-22 15:47:50,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:47:50,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:47:50,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116072234] [2020-12-22 15:47:50,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:47:50,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:47:50,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:47:50,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:47:50,398 INFO L87 Difference]: Start difference. First operand 95291 states and 121633 transitions. Second operand 4 states. [2020-12-22 15:48:00,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:48:00,585 INFO L93 Difference]: Finished difference Result 188263 states and 240412 transitions. [2020-12-22 15:48:00,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:48:00,586 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 224 [2020-12-22 15:48:00,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:48:00,915 INFO L225 Difference]: With dead ends: 188263 [2020-12-22 15:48:00,915 INFO L226 Difference]: Without dead ends: 188251 [2020-12-22 15:48:00,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:48:01,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188251 states. [2020-12-22 15:48:09,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188251 to 95279. [2020-12-22 15:48:09,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95279 states. [2020-12-22 15:48:09,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95279 states to 95279 states and 121471 transitions. [2020-12-22 15:48:09,297 INFO L78 Accepts]: Start accepts. Automaton has 95279 states and 121471 transitions. Word has length 224 [2020-12-22 15:48:09,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:48:09,298 INFO L481 AbstractCegarLoop]: Abstraction has 95279 states and 121471 transitions. [2020-12-22 15:48:09,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:48:09,298 INFO L276 IsEmpty]: Start isEmpty. Operand 95279 states and 121471 transitions. [2020-12-22 15:48:09,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-12-22 15:48:09,326 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:48:09,326 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 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] [2020-12-22 15:48:09,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 15:48:09,326 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:48:09,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:48:09,327 INFO L82 PathProgramCache]: Analyzing trace with hash 244603150, now seen corresponding path program 1 times [2020-12-22 15:48:09,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:48:09,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955068579] [2020-12-22 15:48:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:48:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:48:09,730 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:48:09,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955068579] [2020-12-22 15:48:09,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:48:09,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:48:09,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888632496] [2020-12-22 15:48:09,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:48:09,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:48:09,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:48:09,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:48:09,732 INFO L87 Difference]: Start difference. First operand 95279 states and 121471 transitions. Second operand 4 states. [2020-12-22 15:48:22,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:48:22,970 INFO L93 Difference]: Finished difference Result 188911 states and 240910 transitions. [2020-12-22 15:48:22,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:48:22,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 228 [2020-12-22 15:48:22,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:48:22,972 INFO L225 Difference]: With dead ends: 188911 [2020-12-22 15:48:22,972 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 15:48:23,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:48:23,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 15:48:23,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 15:48:23,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 15:48:23,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 15:48:23,211 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 228 [2020-12-22 15:48:23,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:48:23,211 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 15:48:23,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:48:23,211 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 15:48:23,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 15:48:23,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 15:48:23,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 15:48:23,569 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 56 [2020-12-22 15:48:28,340 WARN L197 SmtUtils]: Spent 4.34 s on a formula simplification. DAG size of input: 923 DAG size of output: 486 [2020-12-22 15:48:28,795 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 89 [2020-12-22 15:48:29,684 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 79 [2020-12-22 15:48:30,728 WARN L197 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290 [2020-12-22 15:48:31,538 WARN L197 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290 [2020-12-22 15:48:32,339 WARN L197 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290 [2020-12-22 15:48:33,210 WARN L197 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290 [2020-12-22 15:48:33,967 WARN L197 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290 [2020-12-22 15:48:34,621 WARN L197 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290 [2020-12-22 15:48:35,370 WARN L197 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290 [2020-12-22 15:48:36,002 WARN L197 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290 [2020-12-22 15:48:36,753 WARN L197 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290 [2020-12-22 15:48:37,381 WARN L197 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290 [2020-12-22 15:48:38,128 WARN L197 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290 [2020-12-22 15:48:38,768 WARN L197 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290 [2020-12-22 15:48:39,398 WARN L197 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290 [2020-12-22 15:48:40,037 WARN L197 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290 [2020-12-22 15:48:40,677 WARN L197 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290 [2020-12-22 15:48:41,306 WARN L197 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290 [2020-12-22 15:48:41,948 WARN L197 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 290