/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-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:26:02,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:26:02,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:26:02,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:26:02,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:26:02,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:26:02,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:26:02,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:26:02,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:26:02,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:26:02,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:26:02,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:26:02,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:26:02,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:26:02,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:26:02,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:26:02,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:26:02,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:26:02,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:26:02,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:26:02,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:26:02,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:26:02,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:26:02,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:26:02,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:26:02,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:26:02,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:26:02,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:26:02,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:26:02,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:26:02,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:26:02,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:26:02,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:26:02,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:26:02,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:26:02,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:26:02,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:26:02,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:26:02,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:26:02,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:26:02,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:26:02,649 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:26:02,715 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:26:02,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:26:02,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:26:02,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:26:02,723 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:26:02,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:26:02,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:26:02,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:26:02,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:26:02,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:26:02,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:26:02,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:26:02,727 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:26:02,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:26:02,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:26:02,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:26:02,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:26:02,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:26:02,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:26:02,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:26:02,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:26:02,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:26:02,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:26:02,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:26:02,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:26:02,732 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:26:03,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:26:03,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:26:03,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:26:03,263 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:26:03,264 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:26:03,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2020-12-22 15:26:03,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68b42526/91215ab7c88a450b9891ca3e47544d6c/FLAGea0c64c01 [2020-12-22 15:26:04,583 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:26:04,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2020-12-22 15:26:04,645 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68b42526/91215ab7c88a450b9891ca3e47544d6c/FLAGea0c64c01 [2020-12-22 15:26:04,883 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68b42526/91215ab7c88a450b9891ca3e47544d6c [2020-12-22 15:26:04,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:26:04,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:26:04,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:26:04,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:26:04,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:26:04,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:26:04" (1/1) ... [2020-12-22 15:26:04,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@189c5f30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:04, skipping insertion in model container [2020-12-22 15:26:04,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:26:04" (1/1) ... [2020-12-22 15:26:04,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:26:05,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:26:08,968 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-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335455,335468] [2020-12-22 15:26:08,972 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-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335600,335613] [2020-12-22 15:26:08,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:26:09,040 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:26:09,542 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-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335455,335468] [2020-12-22 15:26:09,543 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-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335600,335613] [2020-12-22 15:26:09,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:26:10,663 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:26:10,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:10 WrapperNode [2020-12-22 15:26:10,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:26:10,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:26:10,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:26:10,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:26:10,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:10" (1/1) ... [2020-12-22 15:26:10,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:10" (1/1) ... [2020-12-22 15:26:11,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:26:11,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:26:11,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:26:11,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:26:11,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:10" (1/1) ... [2020-12-22 15:26:11,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:10" (1/1) ... [2020-12-22 15:26:12,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:10" (1/1) ... [2020-12-22 15:26:12,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:10" (1/1) ... [2020-12-22 15:26:13,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:10" (1/1) ... [2020-12-22 15:26:13,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:10" (1/1) ... [2020-12-22 15:26:13,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:10" (1/1) ... [2020-12-22 15:26:13,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:26:13,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:26:13,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:26:13,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:26:13,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:10" (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 15:26:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:26:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:26:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:26:14,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:26:14,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:26:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:26:14,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:26:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:26:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:26:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:26:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:26:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:26:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:26:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:26:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:26:39,397 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 15:26:39,398 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2020-12-22 15:26:39,398 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 15:26:39,399 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 15:26:39,401 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 15:26:39,402 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 15:26:39,458 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:26:39,459 INFO L299 CfgBuilder]: Removed 6970 assume(true) statements. [2020-12-22 15:26:39,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:26:39 BoogieIcfgContainer [2020-12-22 15:26:39,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:26:39,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:26:39,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:26:39,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:26:39,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:26:04" (1/3) ... [2020-12-22 15:26:39,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd1b2cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:26:39, skipping insertion in model container [2020-12-22 15:26:39,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:10" (2/3) ... [2020-12-22 15:26:39,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd1b2cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:26:39, skipping insertion in model container [2020-12-22 15:26:39,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:26:39" (3/3) ... [2020-12-22 15:26:39,478 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2020-12-22 15:26:39,485 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:26:39,493 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-22 15:26:39,514 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-22 15:26:39,563 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:26:39,563 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:26:39,564 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:26:39,564 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:26:39,564 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:26:39,564 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:26:39,564 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:26:39,564 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:26:39,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5709 states. [2020-12-22 15:26:39,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 15:26:39,685 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:39,686 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, 1, 1, 1, 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 15:26:39,686 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:39,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:39,693 INFO L82 PathProgramCache]: Analyzing trace with hash -466698118, now seen corresponding path program 1 times [2020-12-22 15:26:39,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:39,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312377264] [2020-12-22 15:26:39,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:40,702 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 15:26:40,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312377264] [2020-12-22 15:26:40,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:26:40,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:26:40,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528181489] [2020-12-22 15:26:40,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:40,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:40,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:40,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:26:40,738 INFO L87 Difference]: Start difference. First operand 5709 states. Second operand 3 states. [2020-12-22 15:26:43,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:43,669 INFO L93 Difference]: Finished difference Result 13272 states and 17280 transitions. [2020-12-22 15:26:43,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:43,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-12-22 15:26:43,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:43,739 INFO L225 Difference]: With dead ends: 13272 [2020-12-22 15:26:43,739 INFO L226 Difference]: Without dead ends: 7406 [2020-12-22 15:26:43,760 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 15:26:43,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7406 states. [2020-12-22 15:26:44,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7406 to 7398. [2020-12-22 15:26:44,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7398 states. [2020-12-22 15:26:44,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7398 states to 7398 states and 9424 transitions. [2020-12-22 15:26:44,156 INFO L78 Accepts]: Start accepts. Automaton has 7398 states and 9424 transitions. Word has length 75 [2020-12-22 15:26:44,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:44,157 INFO L481 AbstractCegarLoop]: Abstraction has 7398 states and 9424 transitions. [2020-12-22 15:26:44,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:44,157 INFO L276 IsEmpty]: Start isEmpty. Operand 7398 states and 9424 transitions. [2020-12-22 15:26:44,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 15:26:44,166 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:44,167 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:26:44,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:26:44,168 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:44,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:44,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1289017702, now seen corresponding path program 1 times [2020-12-22 15:26:44,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:44,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199362381] [2020-12-22 15:26:44,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:44,528 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 15:26:44,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199362381] [2020-12-22 15:26:44,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:26:44,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:26:44,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627085351] [2020-12-22 15:26:44,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:44,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:44,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:44,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:26:44,534 INFO L87 Difference]: Start difference. First operand 7398 states and 9424 transitions. Second operand 3 states. [2020-12-22 15:26:47,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:47,302 INFO L93 Difference]: Finished difference Result 18996 states and 24200 transitions. [2020-12-22 15:26:47,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:47,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2020-12-22 15:26:47,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:47,375 INFO L225 Difference]: With dead ends: 18996 [2020-12-22 15:26:47,376 INFO L226 Difference]: Without dead ends: 11682 [2020-12-22 15:26:47,397 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 15:26:47,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11682 states. [2020-12-22 15:26:47,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11682 to 11030. [2020-12-22 15:26:47,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11030 states. [2020-12-22 15:26:47,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11030 states to 11030 states and 14099 transitions. [2020-12-22 15:26:47,848 INFO L78 Accepts]: Start accepts. Automaton has 11030 states and 14099 transitions. Word has length 83 [2020-12-22 15:26:47,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:47,849 INFO L481 AbstractCegarLoop]: Abstraction has 11030 states and 14099 transitions. [2020-12-22 15:26:47,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:47,850 INFO L276 IsEmpty]: Start isEmpty. Operand 11030 states and 14099 transitions. [2020-12-22 15:26:47,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-22 15:26:47,856 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:47,857 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, 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 15:26:47,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:26:47,859 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:47,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:47,861 INFO L82 PathProgramCache]: Analyzing trace with hash 429197658, now seen corresponding path program 1 times [2020-12-22 15:26:47,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:47,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196513786] [2020-12-22 15:26:47,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:48,555 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 15:26:48,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196513786] [2020-12-22 15:26:48,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:26:48,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:26:48,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953993461] [2020-12-22 15:26:48,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:48,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:48,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:48,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:26:48,565 INFO L87 Difference]: Start difference. First operand 11030 states and 14099 transitions. Second operand 3 states. [2020-12-22 15:26:51,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:51,467 INFO L93 Difference]: Finished difference Result 24251 states and 31094 transitions. [2020-12-22 15:26:51,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:51,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-12-22 15:26:51,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:51,552 INFO L225 Difference]: With dead ends: 24251 [2020-12-22 15:26:51,552 INFO L226 Difference]: Without dead ends: 13305 [2020-12-22 15:26:51,579 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 15:26:51,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13305 states. [2020-12-22 15:26:52,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13305 to 13293. [2020-12-22 15:26:52,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13293 states. [2020-12-22 15:26:52,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13293 states to 13293 states and 17051 transitions. [2020-12-22 15:26:52,089 INFO L78 Accepts]: Start accepts. Automaton has 13293 states and 17051 transitions. Word has length 103 [2020-12-22 15:26:52,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:52,092 INFO L481 AbstractCegarLoop]: Abstraction has 13293 states and 17051 transitions. [2020-12-22 15:26:52,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:52,093 INFO L276 IsEmpty]: Start isEmpty. Operand 13293 states and 17051 transitions. [2020-12-22 15:26:52,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-12-22 15:26:52,104 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:52,105 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:26:52,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:26:52,105 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:52,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:52,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1904077208, now seen corresponding path program 1 times [2020-12-22 15:26:52,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:52,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120817561] [2020-12-22 15:26:52,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:52,467 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 15:26:52,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120817561] [2020-12-22 15:26:52,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:26:52,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:26:52,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198427932] [2020-12-22 15:26:52,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:52,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:52,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:52,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:26:52,472 INFO L87 Difference]: Start difference. First operand 13293 states and 17051 transitions. Second operand 3 states. [2020-12-22 15:26:55,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:55,144 INFO L93 Difference]: Finished difference Result 28767 states and 36978 transitions. [2020-12-22 15:26:55,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:55,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2020-12-22 15:26:55,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:55,184 INFO L225 Difference]: With dead ends: 28767 [2020-12-22 15:26:55,184 INFO L226 Difference]: Without dead ends: 15558 [2020-12-22 15:26:55,215 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 15:26:55,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15558 states. [2020-12-22 15:26:55,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15558 to 15546. [2020-12-22 15:26:55,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15546 states. [2020-12-22 15:26:55,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15546 states to 15546 states and 19989 transitions. [2020-12-22 15:26:55,717 INFO L78 Accepts]: Start accepts. Automaton has 15546 states and 19989 transitions. Word has length 140 [2020-12-22 15:26:55,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:55,719 INFO L481 AbstractCegarLoop]: Abstraction has 15546 states and 19989 transitions. [2020-12-22 15:26:55,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:55,719 INFO L276 IsEmpty]: Start isEmpty. Operand 15546 states and 19989 transitions. [2020-12-22 15:26:55,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-12-22 15:26:55,725 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:55,725 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:26:55,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:26:55,728 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:55,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:55,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1655930714, now seen corresponding path program 1 times [2020-12-22 15:26:55,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:55,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096786280] [2020-12-22 15:26:55,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:56,159 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 15:26:56,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096786280] [2020-12-22 15:26:56,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:26:56,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:26:56,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795026625] [2020-12-22 15:26:56,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:56,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:56,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:56,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:26:56,163 INFO L87 Difference]: Start difference. First operand 15546 states and 19989 transitions. Second operand 3 states. [2020-12-22 15:26:58,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:58,977 INFO L93 Difference]: Finished difference Result 33283 states and 42874 transitions. [2020-12-22 15:26:58,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:58,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2020-12-22 15:26:58,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:59,023 INFO L225 Difference]: With dead ends: 33283 [2020-12-22 15:26:59,023 INFO L226 Difference]: Without dead ends: 17821 [2020-12-22 15:26:59,052 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 15:26:59,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17821 states. [2020-12-22 15:26:59,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17821 to 17809. [2020-12-22 15:26:59,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17809 states. [2020-12-22 15:26:59,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17809 states to 17809 states and 22943 transitions. [2020-12-22 15:26:59,625 INFO L78 Accepts]: Start accepts. Automaton has 17809 states and 22943 transitions. Word has length 140 [2020-12-22 15:26:59,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:59,627 INFO L481 AbstractCegarLoop]: Abstraction has 17809 states and 22943 transitions. [2020-12-22 15:26:59,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:59,627 INFO L276 IsEmpty]: Start isEmpty. Operand 17809 states and 22943 transitions. [2020-12-22 15:26:59,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-12-22 15:26:59,634 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:59,635 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:26:59,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:26:59,635 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:59,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:59,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1997150931, now seen corresponding path program 1 times [2020-12-22 15:26:59,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:59,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367987912] [2020-12-22 15:26:59,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:59,948 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-12-22 15:26:59,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367987912] [2020-12-22 15:26:59,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:26:59,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:26:59,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897112574] [2020-12-22 15:26:59,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:59,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:59,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:59,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:26:59,952 INFO L87 Difference]: Start difference. First operand 17809 states and 22943 transitions. Second operand 3 states. [2020-12-22 15:27:02,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:02,712 INFO L93 Difference]: Finished difference Result 37809 states and 48782 transitions. [2020-12-22 15:27:02,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:02,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2020-12-22 15:27:02,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:02,763 INFO L225 Difference]: With dead ends: 37809 [2020-12-22 15:27:02,763 INFO L226 Difference]: Without dead ends: 20084 [2020-12-22 15:27:02,792 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 15:27:02,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20084 states. [2020-12-22 15:27:03,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20084 to 20072. [2020-12-22 15:27:03,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20072 states. [2020-12-22 15:27:03,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20072 states to 20072 states and 25901 transitions. [2020-12-22 15:27:03,571 INFO L78 Accepts]: Start accepts. Automaton has 20072 states and 25901 transitions. Word has length 174 [2020-12-22 15:27:03,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:03,573 INFO L481 AbstractCegarLoop]: Abstraction has 20072 states and 25901 transitions. [2020-12-22 15:27:03,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:27:03,573 INFO L276 IsEmpty]: Start isEmpty. Operand 20072 states and 25901 transitions. [2020-12-22 15:27:03,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-12-22 15:27:03,587 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:03,587 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 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 15:27:03,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 15:27:03,588 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:03,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:03,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1489746594, now seen corresponding path program 1 times [2020-12-22 15:27:03,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:03,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109082744] [2020-12-22 15:27:03,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:03,974 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-12-22 15:27:03,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109082744] [2020-12-22 15:27:03,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:27:03,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:27:03,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936842643] [2020-12-22 15:27:03,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:27:03,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:03,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:27:03,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:27:03,977 INFO L87 Difference]: Start difference. First operand 20072 states and 25901 transitions. Second operand 3 states. [2020-12-22 15:27:06,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:06,878 INFO L93 Difference]: Finished difference Result 42327 states and 54660 transitions. [2020-12-22 15:27:06,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:06,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-12-22 15:27:06,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:06,925 INFO L225 Difference]: With dead ends: 42327 [2020-12-22 15:27:06,925 INFO L226 Difference]: Without dead ends: 22339 [2020-12-22 15:27:06,960 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 15:27:06,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22339 states. [2020-12-22 15:27:07,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22339 to 22327. [2020-12-22 15:27:07,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22327 states. [2020-12-22 15:27:07,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22327 states to 22327 states and 28841 transitions. [2020-12-22 15:27:07,759 INFO L78 Accepts]: Start accepts. Automaton has 22327 states and 28841 transitions. Word has length 201 [2020-12-22 15:27:07,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:07,760 INFO L481 AbstractCegarLoop]: Abstraction has 22327 states and 28841 transitions. [2020-12-22 15:27:07,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:27:07,760 INFO L276 IsEmpty]: Start isEmpty. Operand 22327 states and 28841 transitions. [2020-12-22 15:27:07,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-12-22 15:27:07,770 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:07,771 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 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 15:27:07,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 15:27:07,771 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:07,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:07,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1982372768, now seen corresponding path program 1 times [2020-12-22 15:27:07,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:07,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099982381] [2020-12-22 15:27:07,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:08,116 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2020-12-22 15:27:08,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099982381] [2020-12-22 15:27:08,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:27:08,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:27:08,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826736460] [2020-12-22 15:27:08,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:27:08,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:08,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:27:08,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:27:08,118 INFO L87 Difference]: Start difference. First operand 22327 states and 28841 transitions. Second operand 3 states. [2020-12-22 15:27:09,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:09,886 INFO L93 Difference]: Finished difference Result 45690 states and 59044 transitions. [2020-12-22 15:27:09,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:09,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-12-22 15:27:09,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:09,925 INFO L225 Difference]: With dead ends: 45690 [2020-12-22 15:27:09,925 INFO L226 Difference]: Without dead ends: 23447 [2020-12-22 15:27:09,955 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 15:27:09,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23447 states. [2020-12-22 15:27:10,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23447 to 22383. [2020-12-22 15:27:10,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22383 states. [2020-12-22 15:27:10,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22383 states to 22383 states and 28897 transitions. [2020-12-22 15:27:10,601 INFO L78 Accepts]: Start accepts. Automaton has 22383 states and 28897 transitions. Word has length 201 [2020-12-22 15:27:10,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:10,601 INFO L481 AbstractCegarLoop]: Abstraction has 22383 states and 28897 transitions. [2020-12-22 15:27:10,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:27:10,601 INFO L276 IsEmpty]: Start isEmpty. Operand 22383 states and 28897 transitions. [2020-12-22 15:27:10,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-12-22 15:27:10,613 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:10,613 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 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 15:27:10,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 15:27:10,614 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:10,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:10,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1677421280, now seen corresponding path program 1 times [2020-12-22 15:27:10,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:10,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138495587] [2020-12-22 15:27:10,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:10,909 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-22 15:27:10,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138495587] [2020-12-22 15:27:10,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986772800] [2020-12-22 15:27:10,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:27:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:12,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 2845 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 15:27:12,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:27:13,201 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-12-22 15:27:13,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:27:13,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 15:27:13,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285667079] [2020-12-22 15:27:13,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:27:13,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:13,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:27:13,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:13,205 INFO L87 Difference]: Start difference. First operand 22383 states and 28897 transitions. Second operand 3 states. [2020-12-22 15:27:13,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:13,925 INFO L93 Difference]: Finished difference Result 44682 states and 57700 transitions. [2020-12-22 15:27:13,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:13,925 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 209 [2020-12-22 15:27:13,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:13,953 INFO L225 Difference]: With dead ends: 44682 [2020-12-22 15:27:13,953 INFO L226 Difference]: Without dead ends: 22383 [2020-12-22 15:27:13,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:14,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22383 states. [2020-12-22 15:27:14,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22383 to 22383. [2020-12-22 15:27:14,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22383 states. [2020-12-22 15:27:14,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22383 states to 22383 states and 28873 transitions. [2020-12-22 15:27:14,626 INFO L78 Accepts]: Start accepts. Automaton has 22383 states and 28873 transitions. Word has length 209 [2020-12-22 15:27:14,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:14,627 INFO L481 AbstractCegarLoop]: Abstraction has 22383 states and 28873 transitions. [2020-12-22 15:27:14,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:27:14,627 INFO L276 IsEmpty]: Start isEmpty. Operand 22383 states and 28873 transitions. [2020-12-22 15:27:14,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-12-22 15:27:14,637 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:14,637 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 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 15:27:14,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-12-22 15:27:14,853 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:14,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:14,854 INFO L82 PathProgramCache]: Analyzing trace with hash -460206696, now seen corresponding path program 1 times [2020-12-22 15:27:14,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:14,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558241034] [2020-12-22 15:27:14,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:15,223 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-22 15:27:15,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558241034] [2020-12-22 15:27:15,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206944451] [2020-12-22 15:27:15,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:27:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:16,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 2846 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 15:27:16,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:27:17,222 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-12-22 15:27:17,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:27:17,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 15:27:17,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868412085] [2020-12-22 15:27:17,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:27:17,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:17,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:27:17,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:17,225 INFO L87 Difference]: Start difference. First operand 22383 states and 28873 transitions. Second operand 3 states. [2020-12-22 15:27:17,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:17,887 INFO L93 Difference]: Finished difference Result 44682 states and 57652 transitions. [2020-12-22 15:27:17,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:17,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-12-22 15:27:17,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:17,919 INFO L225 Difference]: With dead ends: 44682 [2020-12-22 15:27:17,919 INFO L226 Difference]: Without dead ends: 22383 [2020-12-22 15:27:17,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:17,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22383 states. [2020-12-22 15:27:18,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22383 to 22383. [2020-12-22 15:27:18,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22383 states. [2020-12-22 15:27:18,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22383 states to 22383 states and 28849 transitions. [2020-12-22 15:27:18,595 INFO L78 Accepts]: Start accepts. Automaton has 22383 states and 28849 transitions. Word has length 210 [2020-12-22 15:27:18,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:18,596 INFO L481 AbstractCegarLoop]: Abstraction has 22383 states and 28849 transitions. [2020-12-22 15:27:18,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:27:18,596 INFO L276 IsEmpty]: Start isEmpty. Operand 22383 states and 28849 transitions. [2020-12-22 15:27:18,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-12-22 15:27:18,604 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:18,605 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:27:18,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-22 15:27:18,815 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:18,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:18,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1381111301, now seen corresponding path program 1 times [2020-12-22 15:27:18,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:18,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921851336] [2020-12-22 15:27:18,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:19,209 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-22 15:27:19,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921851336] [2020-12-22 15:27:19,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555145473] [2020-12-22 15:27:19,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:27:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:20,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 2847 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 15:27:20,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:27:21,153 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-12-22 15:27:21,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:27:21,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 15:27:21,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558195560] [2020-12-22 15:27:21,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:27:21,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:21,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:27:21,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:21,156 INFO L87 Difference]: Start difference. First operand 22383 states and 28849 transitions. Second operand 3 states. [2020-12-22 15:27:21,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:21,698 INFO L93 Difference]: Finished difference Result 44682 states and 57604 transitions. [2020-12-22 15:27:21,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:21,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-12-22 15:27:21,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:21,723 INFO L225 Difference]: With dead ends: 44682 [2020-12-22 15:27:21,723 INFO L226 Difference]: Without dead ends: 22383 [2020-12-22 15:27:21,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:21,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22383 states. [2020-12-22 15:27:22,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22383 to 22383. [2020-12-22 15:27:22,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22383 states. [2020-12-22 15:27:22,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22383 states to 22383 states and 28825 transitions. [2020-12-22 15:27:22,370 INFO L78 Accepts]: Start accepts. Automaton has 22383 states and 28825 transitions. Word has length 211 [2020-12-22 15:27:22,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:22,370 INFO L481 AbstractCegarLoop]: Abstraction has 22383 states and 28825 transitions. [2020-12-22 15:27:22,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:27:22,371 INFO L276 IsEmpty]: Start isEmpty. Operand 22383 states and 28825 transitions. [2020-12-22 15:27:22,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-12-22 15:27:22,379 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:22,380 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:27:22,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-22 15:27:22,594 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:22,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:22,595 INFO L82 PathProgramCache]: Analyzing trace with hash 135765971, now seen corresponding path program 1 times [2020-12-22 15:27:22,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:22,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106579459] [2020-12-22 15:27:22,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:22,885 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-22 15:27:22,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106579459] [2020-12-22 15:27:22,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59939314] [2020-12-22 15:27:22,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:27:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:24,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 2848 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 15:27:24,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:27:24,929 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-12-22 15:27:24,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:27:24,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 15:27:24,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517610950] [2020-12-22 15:27:24,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:27:24,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:24,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:27:24,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:24,939 INFO L87 Difference]: Start difference. First operand 22383 states and 28825 transitions. Second operand 3 states. [2020-12-22 15:27:25,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:25,701 INFO L93 Difference]: Finished difference Result 44682 states and 57556 transitions. [2020-12-22 15:27:25,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:25,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2020-12-22 15:27:25,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:25,727 INFO L225 Difference]: With dead ends: 44682 [2020-12-22 15:27:25,727 INFO L226 Difference]: Without dead ends: 22383 [2020-12-22 15:27:25,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:25,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22383 states. [2020-12-22 15:27:26,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22383 to 22383. [2020-12-22 15:27:26,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22383 states. [2020-12-22 15:27:26,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22383 states to 22383 states and 28801 transitions. [2020-12-22 15:27:26,582 INFO L78 Accepts]: Start accepts. Automaton has 22383 states and 28801 transitions. Word has length 212 [2020-12-22 15:27:26,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:26,583 INFO L481 AbstractCegarLoop]: Abstraction has 22383 states and 28801 transitions. [2020-12-22 15:27:26,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:27:26,583 INFO L276 IsEmpty]: Start isEmpty. Operand 22383 states and 28801 transitions. [2020-12-22 15:27:26,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-12-22 15:27:26,589 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:26,589 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:27:26,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:27:26,791 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:26,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:26,791 INFO L82 PathProgramCache]: Analyzing trace with hash -85529898, now seen corresponding path program 1 times [2020-12-22 15:27:26,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:26,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313260052] [2020-12-22 15:27:26,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:27,063 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-22 15:27:27,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313260052] [2020-12-22 15:27:27,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691815364] [2020-12-22 15:27:27,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:27:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:28,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 2849 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 15:27:28,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:27:29,008 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-12-22 15:27:29,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:27:29,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 15:27:29,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325045044] [2020-12-22 15:27:29,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:27:29,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:29,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:27:29,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:29,010 INFO L87 Difference]: Start difference. First operand 22383 states and 28801 transitions. Second operand 3 states. [2020-12-22 15:27:29,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:29,676 INFO L93 Difference]: Finished difference Result 44682 states and 57508 transitions. [2020-12-22 15:27:29,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:29,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2020-12-22 15:27:29,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:29,701 INFO L225 Difference]: With dead ends: 44682 [2020-12-22 15:27:29,702 INFO L226 Difference]: Without dead ends: 22383 [2020-12-22 15:27:29,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:29,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22383 states. [2020-12-22 15:27:30,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22383 to 22383. [2020-12-22 15:27:30,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22383 states. [2020-12-22 15:27:30,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22383 states to 22383 states and 28777 transitions. [2020-12-22 15:27:30,474 INFO L78 Accepts]: Start accepts. Automaton has 22383 states and 28777 transitions. Word has length 213 [2020-12-22 15:27:30,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:30,474 INFO L481 AbstractCegarLoop]: Abstraction has 22383 states and 28777 transitions. [2020-12-22 15:27:30,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:27:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand 22383 states and 28777 transitions. [2020-12-22 15:27:30,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-12-22 15:27:30,482 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:30,483 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:27:30,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-22 15:27:30,687 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:30,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:30,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1644381710, now seen corresponding path program 1 times [2020-12-22 15:27:30,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:30,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545718981] [2020-12-22 15:27:30,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:30,945 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-22 15:27:30,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545718981] [2020-12-22 15:27:30,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368358099] [2020-12-22 15:27:30,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:27:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:32,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 2850 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 15:27:32,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:27:33,135 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-12-22 15:27:33,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:27:33,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 15:27:33,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576532771] [2020-12-22 15:27:33,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:27:33,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:33,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:27:33,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:33,138 INFO L87 Difference]: Start difference. First operand 22383 states and 28777 transitions. Second operand 3 states. [2020-12-22 15:27:33,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:33,901 INFO L93 Difference]: Finished difference Result 44682 states and 57460 transitions. [2020-12-22 15:27:33,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:33,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-12-22 15:27:33,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:33,929 INFO L225 Difference]: With dead ends: 44682 [2020-12-22 15:27:33,930 INFO L226 Difference]: Without dead ends: 22383 [2020-12-22 15:27:33,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:33,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22383 states. [2020-12-22 15:27:34,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22383 to 22383. [2020-12-22 15:27:34,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22383 states. [2020-12-22 15:27:34,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22383 states to 22383 states and 28753 transitions. [2020-12-22 15:27:34,744 INFO L78 Accepts]: Start accepts. Automaton has 22383 states and 28753 transitions. Word has length 214 [2020-12-22 15:27:34,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:34,745 INFO L481 AbstractCegarLoop]: Abstraction has 22383 states and 28753 transitions. [2020-12-22 15:27:34,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:27:34,745 INFO L276 IsEmpty]: Start isEmpty. Operand 22383 states and 28753 transitions. [2020-12-22 15:27:34,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-12-22 15:27:34,752 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:34,752 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:27:34,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:27:34,954 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:34,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:34,955 INFO L82 PathProgramCache]: Analyzing trace with hash -562784335, now seen corresponding path program 1 times [2020-12-22 15:27:34,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:34,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122466818] [2020-12-22 15:27:34,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:35,260 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-22 15:27:35,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122466818] [2020-12-22 15:27:35,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545139416] [2020-12-22 15:27:35,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:27:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:36,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 2851 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 15:27:36,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:27:37,242 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-22 15:27:37,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 15:27:37,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-22 15:27:37,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49316279] [2020-12-22 15:27:37,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 15:27:37,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:37,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 15:27:37,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:37,245 INFO L87 Difference]: Start difference. First operand 22383 states and 28753 transitions. Second operand 5 states. [2020-12-22 15:27:40,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:40,137 INFO L93 Difference]: Finished difference Result 46866 states and 60212 transitions. [2020-12-22 15:27:40,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 15:27:40,139 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 215 [2020-12-22 15:27:40,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:40,199 INFO L225 Difference]: With dead ends: 46866 [2020-12-22 15:27:40,199 INFO L226 Difference]: Without dead ends: 24567 [2020-12-22 15:27:40,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:40,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24567 states. [2020-12-22 15:27:41,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24567 to 23503. [2020-12-22 15:27:41,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23503 states. [2020-12-22 15:27:41,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23503 states to 23503 states and 30153 transitions. [2020-12-22 15:27:41,712 INFO L78 Accepts]: Start accepts. Automaton has 23503 states and 30153 transitions. Word has length 215 [2020-12-22 15:27:41,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:41,713 INFO L481 AbstractCegarLoop]: Abstraction has 23503 states and 30153 transitions. [2020-12-22 15:27:41,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 15:27:41,713 INFO L276 IsEmpty]: Start isEmpty. Operand 23503 states and 30153 transitions. [2020-12-22 15:27:41,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-12-22 15:27:41,725 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:41,725 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:27:41,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-22 15:27:41,940 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:41,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:41,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1321684367, now seen corresponding path program 2 times [2020-12-22 15:27:41,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:41,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585493311] [2020-12-22 15:27:41,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:42,506 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-12-22 15:27:42,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585493311] [2020-12-22 15:27:42,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473000427] [2020-12-22 15:27:42,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:28:11,623 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 15:28:11,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 15:28:11,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 2226 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-22 15:28:11,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:28:11,913 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-12-22 15:28:11,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:28:11,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-12-22 15:28:11,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021293762] [2020-12-22 15:28:11,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:28:11,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:28:11,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:28:11,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 15:28:11,915 INFO L87 Difference]: Start difference. First operand 23503 states and 30153 transitions. Second operand 3 states. [2020-12-22 15:28:13,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:28:13,694 INFO L93 Difference]: Finished difference Result 68729 states and 88121 transitions. [2020-12-22 15:28:13,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:28:13,695 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 223 [2020-12-22 15:28:13,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:28:13,696 INFO L225 Difference]: With dead ends: 68729 [2020-12-22 15:28:13,696 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 15:28:13,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 15:28:13,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 15:28:13,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 15:28:13,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 15:28:13,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 15:28:13,750 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 223 [2020-12-22 15:28:13,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:28:13,750 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 15:28:13,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:28:13,751 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 15:28:13,751 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 15:28:13,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-22 15:28:13,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 15:28:16,620 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2020-12-22 15:28:24,138 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-22 15:28:35,136 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2020-12-22 15:28:44,421 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 17 [2020-12-22 15:28:44,553 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 17 [2020-12-22 15:28:44,664 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 17 [2020-12-22 15:28:44,766 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 17 [2020-12-22 15:28:47,182 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-22 15:28:50,862 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 17 [2020-12-22 15:28:59,895 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-22 15:29:00,694 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 17 [2020-12-22 15:29:00,846 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 17 [2020-12-22 15:29:13,508 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-22 15:29:16,039 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 17 [2020-12-22 15:29:17,900 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 17 [2020-12-22 15:29:18,013 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 17 [2020-12-22 15:29:18,457 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 17 [2020-12-22 15:29:19,030 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 17 [2020-12-22 15:29:26,233 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 17 [2020-12-22 15:29:26,352 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 17 [2020-12-22 15:29:30,692 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 17