/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-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 16:57:09,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 16:57:09,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 16:57:09,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 16:57:09,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 16:57:09,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 16:57:09,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 16:57:09,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 16:57:09,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 16:57:09,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 16:57:09,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 16:57:09,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 16:57:09,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 16:57:09,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 16:57:09,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 16:57:09,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 16:57:09,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 16:57:09,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 16:57:09,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 16:57:09,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 16:57:09,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 16:57:09,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 16:57:09,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 16:57:09,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 16:57:09,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 16:57:09,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 16:57:09,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 16:57:09,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 16:57:09,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 16:57:09,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 16:57:09,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 16:57:09,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 16:57:09,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 16:57:09,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 16:57:09,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 16:57:09,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 16:57:09,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 16:57:09,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 16:57:09,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 16:57:09,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 16:57:09,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 16:57:09,547 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 16:57:09,600 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 16:57:09,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 16:57:09,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 16:57:09,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 16:57:09,606 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 16:57:09,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 16:57:09,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 16:57:09,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 16:57:09,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 16:57:09,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 16:57:09,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 16:57:09,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 16:57:09,609 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 16:57:09,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 16:57:09,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 16:57:09,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 16:57:09,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 16:57:09,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 16:57:09,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 16:57:09,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 16:57:09,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 16:57:09,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 16:57:09,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 16:57:09,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 16:57:09,612 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 16:57:09,612 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 16:57:10,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 16:57:10,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 16:57:10,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 16:57:10,105 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 16:57:10,106 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 16:57:10,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2020-12-22 16:57:10,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e727a9a31/61ddc988591240e1af1bce37559d4688/FLAG3f6af4179 [2020-12-22 16:57:11,326 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 16:57:11,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2020-12-22 16:57:11,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e727a9a31/61ddc988591240e1af1bce37559d4688/FLAG3f6af4179 [2020-12-22 16:57:11,722 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e727a9a31/61ddc988591240e1af1bce37559d4688 [2020-12-22 16:57:11,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 16:57:11,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 16:57:11,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 16:57:11,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 16:57:11,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 16:57:11,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:57:11" (1/1) ... [2020-12-22 16:57:11,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c0de0fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:57:11, skipping insertion in model container [2020-12-22 16:57:11,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:57:11" (1/1) ... [2020-12-22 16:57:11,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 16:57:12,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 16:57:15,565 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-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2020-12-22 16:57:15,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:57:15,706 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 16:57:16,382 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-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2020-12-22 16:57:16,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:57:17,366 INFO L208 MainTranslator]: Completed translation [2020-12-22 16:57:17,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:57:17 WrapperNode [2020-12-22 16:57:17,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 16:57:17,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 16:57:17,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 16:57:17,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 16:57:17,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:57:17" (1/1) ... [2020-12-22 16:57:17,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:57:17" (1/1) ... [2020-12-22 16:57:18,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 16:57:18,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 16:57:18,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 16:57:18,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 16:57:18,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:57:17" (1/1) ... [2020-12-22 16:57:18,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:57:17" (1/1) ... [2020-12-22 16:57:19,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:57:17" (1/1) ... [2020-12-22 16:57:19,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:57:17" (1/1) ... [2020-12-22 16:57:19,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:57:17" (1/1) ... [2020-12-22 16:57:20,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:57:17" (1/1) ... [2020-12-22 16:57:20,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:57:17" (1/1) ... [2020-12-22 16:57:20,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 16:57:20,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 16:57:20,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 16:57:20,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 16:57:20,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:57:17" (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 16:57:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2020-12-22 16:57:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2020-12-22 16:57:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2020-12-22 16:57:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2020-12-22 16:57:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 16:57:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 16:57:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 16:57:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 16:57:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2020-12-22 16:57:20,729 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2020-12-22 16:57:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2020-12-22 16:57:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2020-12-22 16:57:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 16:57:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2020-12-22 16:57:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2020-12-22 16:57:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 16:57:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-12-22 16:57:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-12-22 16:57:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 16:57:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 16:57:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 16:57:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 16:57:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2020-12-22 16:57:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2020-12-22 16:57:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 16:57:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 16:57:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 16:57:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 16:57:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 16:57:51,587 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 16:57:51,588 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2020-12-22 16:57:51,588 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2020-12-22 16:57:51,588 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2020-12-22 16:57:51,589 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 16:57:51,589 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2020-12-22 16:57:51,589 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 16:57:51,590 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2020-12-22 16:57:51,590 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 16:57:51,591 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 16:57:58,369 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 16:57:58,371 INFO L299 CfgBuilder]: Removed 6721 assume(true) statements. [2020-12-22 16:57:58,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:57:58 BoogieIcfgContainer [2020-12-22 16:57:58,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 16:57:58,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 16:57:58,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 16:57:58,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 16:57:58,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:57:11" (1/3) ... [2020-12-22 16:57:58,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476ffae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:57:58, skipping insertion in model container [2020-12-22 16:57:58,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:57:17" (2/3) ... [2020-12-22 16:57:58,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476ffae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:57:58, skipping insertion in model container [2020-12-22 16:57:58,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:57:58" (3/3) ... [2020-12-22 16:57:58,393 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2020-12-22 16:57:58,400 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 16:57:58,409 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-12-22 16:57:58,432 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-12-22 16:57:58,486 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 16:57:58,486 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 16:57:58,487 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 16:57:58,487 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 16:57:58,487 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 16:57:58,487 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 16:57:58,487 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 16:57:58,487 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 16:57:58,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5893 states. [2020-12-22 16:57:58,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 16:57:58,596 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:57:58,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:57:58,598 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 16:57:58,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:57:58,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1130171376, now seen corresponding path program 1 times [2020-12-22 16:57:58,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:57:58,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783842110] [2020-12-22 16:57:58,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:57:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:57:59,506 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 16:57:59,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783842110] [2020-12-22 16:57:59,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:57:59,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:57:59,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49526770] [2020-12-22 16:57:59,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:57:59,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:57:59,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:57:59,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:57:59,535 INFO L87 Difference]: Start difference. First operand 5893 states. Second operand 3 states. [2020-12-22 16:58:02,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:58:02,550 INFO L93 Difference]: Finished difference Result 17375 states and 22875 transitions. [2020-12-22 16:58:02,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:58:02,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-12-22 16:58:02,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:58:02,686 INFO L225 Difference]: With dead ends: 17375 [2020-12-22 16:58:02,686 INFO L226 Difference]: Without dead ends: 11341 [2020-12-22 16:58:02,791 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 16:58:02,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11341 states. [2020-12-22 16:58:03,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11341 to 11341. [2020-12-22 16:58:03,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11341 states. [2020-12-22 16:58:03,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11341 states to 11341 states and 14555 transitions. [2020-12-22 16:58:03,368 INFO L78 Accepts]: Start accepts. Automaton has 11341 states and 14555 transitions. Word has length 48 [2020-12-22 16:58:03,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:58:03,369 INFO L481 AbstractCegarLoop]: Abstraction has 11341 states and 14555 transitions. [2020-12-22 16:58:03,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:58:03,370 INFO L276 IsEmpty]: Start isEmpty. Operand 11341 states and 14555 transitions. [2020-12-22 16:58:03,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 16:58:03,383 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:58:03,383 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:58:03,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 16:58:03,385 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 16:58:03,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:58:03,386 INFO L82 PathProgramCache]: Analyzing trace with hash 980654295, now seen corresponding path program 1 times [2020-12-22 16:58:03,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:58:03,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901988643] [2020-12-22 16:58:03,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:58:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:58:03,782 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:58:03,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901988643] [2020-12-22 16:58:03,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:58:03,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:58:03,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716834758] [2020-12-22 16:58:03,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:58:03,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:58:03,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:58:03,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:58:03,787 INFO L87 Difference]: Start difference. First operand 11341 states and 14555 transitions. Second operand 3 states. [2020-12-22 16:58:06,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:58:06,671 INFO L93 Difference]: Finished difference Result 22588 states and 29006 transitions. [2020-12-22 16:58:06,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:58:06,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-12-22 16:58:06,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:58:06,827 INFO L225 Difference]: With dead ends: 22588 [2020-12-22 16:58:06,828 INFO L226 Difference]: Without dead ends: 16931 [2020-12-22 16:58:06,876 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 16:58:06,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16931 states. [2020-12-22 16:58:07,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16931 to 16931. [2020-12-22 16:58:07,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16931 states. [2020-12-22 16:58:07,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16931 states to 16931 states and 21745 transitions. [2020-12-22 16:58:07,731 INFO L78 Accepts]: Start accepts. Automaton has 16931 states and 21745 transitions. Word has length 73 [2020-12-22 16:58:07,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:58:07,735 INFO L481 AbstractCegarLoop]: Abstraction has 16931 states and 21745 transitions. [2020-12-22 16:58:07,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:58:07,737 INFO L276 IsEmpty]: Start isEmpty. Operand 16931 states and 21745 transitions. [2020-12-22 16:58:07,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 16:58:07,750 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:58:07,751 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:58:07,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 16:58:07,751 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 16:58:07,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:58:07,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1238819733, now seen corresponding path program 1 times [2020-12-22 16:58:07,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:58:07,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823372411] [2020-12-22 16:58:07,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:58:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:58:08,222 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:58:08,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823372411] [2020-12-22 16:58:08,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:58:08,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:58:08,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114847814] [2020-12-22 16:58:08,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:58:08,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:58:08,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:58:08,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:58:08,225 INFO L87 Difference]: Start difference. First operand 16931 states and 21745 transitions. Second operand 4 states. [2020-12-22 16:58:08,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:58:08,899 INFO L93 Difference]: Finished difference Result 16931 states and 21745 transitions. [2020-12-22 16:58:08,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:58:08,900 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 73 [2020-12-22 16:58:08,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:58:08,986 INFO L225 Difference]: With dead ends: 16931 [2020-12-22 16:58:08,987 INFO L226 Difference]: Without dead ends: 16927 [2020-12-22 16:58:09,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:58:09,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16927 states. [2020-12-22 16:58:09,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16927 to 16927. [2020-12-22 16:58:09,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16927 states. [2020-12-22 16:58:09,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16927 states to 16927 states and 21741 transitions. [2020-12-22 16:58:09,719 INFO L78 Accepts]: Start accepts. Automaton has 16927 states and 21741 transitions. Word has length 73 [2020-12-22 16:58:09,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:58:09,719 INFO L481 AbstractCegarLoop]: Abstraction has 16927 states and 21741 transitions. [2020-12-22 16:58:09,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:58:09,720 INFO L276 IsEmpty]: Start isEmpty. Operand 16927 states and 21741 transitions. [2020-12-22 16:58:09,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 16:58:09,727 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:58:09,728 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:58:09,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 16:58:09,728 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 16:58:09,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:58:09,729 INFO L82 PathProgramCache]: Analyzing trace with hash 800171192, now seen corresponding path program 1 times [2020-12-22 16:58:09,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:58:09,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545966433] [2020-12-22 16:58:09,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:58:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:58:10,244 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:58:10,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545966433] [2020-12-22 16:58:10,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:58:10,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:58:10,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583944843] [2020-12-22 16:58:10,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:58:10,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:58:10,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:58:10,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:58:10,247 INFO L87 Difference]: Start difference. First operand 16927 states and 21741 transitions. Second operand 4 states. [2020-12-22 16:58:11,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:58:11,471 INFO L93 Difference]: Finished difference Result 33678 states and 43436 transitions. [2020-12-22 16:58:11,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 16:58:11,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 75 [2020-12-22 16:58:11,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:58:11,714 INFO L225 Difference]: With dead ends: 33678 [2020-12-22 16:58:11,714 INFO L226 Difference]: Without dead ends: 33674 [2020-12-22 16:58:11,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:58:11,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33674 states. [2020-12-22 16:58:12,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33674 to 28687. [2020-12-22 16:58:12,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28687 states. [2020-12-22 16:58:13,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28687 states to 28687 states and 37073 transitions. [2020-12-22 16:58:13,238 INFO L78 Accepts]: Start accepts. Automaton has 28687 states and 37073 transitions. Word has length 75 [2020-12-22 16:58:13,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:58:13,240 INFO L481 AbstractCegarLoop]: Abstraction has 28687 states and 37073 transitions. [2020-12-22 16:58:13,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:58:13,240 INFO L276 IsEmpty]: Start isEmpty. Operand 28687 states and 37073 transitions. [2020-12-22 16:58:13,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 16:58:13,249 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:58:13,249 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:58:13,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 16:58:13,250 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 16:58:13,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:58:13,251 INFO L82 PathProgramCache]: Analyzing trace with hash 165718619, now seen corresponding path program 1 times [2020-12-22 16:58:13,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:58:13,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305394453] [2020-12-22 16:58:13,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:58:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:58:13,594 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:58:13,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305394453] [2020-12-22 16:58:13,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:58:13,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:58:13,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215124346] [2020-12-22 16:58:13,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:58:13,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:58:13,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:58:13,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:58:13,598 INFO L87 Difference]: Start difference. First operand 28687 states and 37073 transitions. Second operand 4 states. [2020-12-22 16:58:15,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:58:15,947 INFO L93 Difference]: Finished difference Result 57213 states and 74415 transitions. [2020-12-22 16:58:15,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 16:58:15,948 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 77 [2020-12-22 16:58:15,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:58:16,319 INFO L225 Difference]: With dead ends: 57213 [2020-12-22 16:58:16,320 INFO L226 Difference]: Without dead ends: 57209 [2020-12-22 16:58:16,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:58:16,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57209 states. [2020-12-22 16:58:18,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57209 to 52199. [2020-12-22 16:58:18,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52199 states. [2020-12-22 16:58:19,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52199 states to 52199 states and 68031 transitions. [2020-12-22 16:58:19,277 INFO L78 Accepts]: Start accepts. Automaton has 52199 states and 68031 transitions. Word has length 77 [2020-12-22 16:58:19,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:58:19,277 INFO L481 AbstractCegarLoop]: Abstraction has 52199 states and 68031 transitions. [2020-12-22 16:58:19,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:58:19,278 INFO L276 IsEmpty]: Start isEmpty. Operand 52199 states and 68031 transitions. [2020-12-22 16:58:19,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 16:58:19,291 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:58:19,291 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:58:19,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 16:58:19,292 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 16:58:19,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:58:19,293 INFO L82 PathProgramCache]: Analyzing trace with hash 342152318, now seen corresponding path program 1 times [2020-12-22 16:58:19,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:58:19,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066661664] [2020-12-22 16:58:19,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:58:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:58:19,836 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:58:19,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066661664] [2020-12-22 16:58:19,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:58:19,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:58:19,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128922731] [2020-12-22 16:58:19,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:58:19,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:58:19,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:58:19,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:58:19,841 INFO L87 Difference]: Start difference. First operand 52199 states and 68031 transitions. Second operand 4 states. [2020-12-22 16:58:23,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:58:23,190 INFO L93 Difference]: Finished difference Result 104285 states and 137288 transitions. [2020-12-22 16:58:23,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 16:58:23,191 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 79 [2020-12-22 16:58:23,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:58:24,429 INFO L225 Difference]: With dead ends: 104285 [2020-12-22 16:58:24,430 INFO L226 Difference]: Without dead ends: 104253 [2020-12-22 16:58:24,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:58:24,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104253 states. [2020-12-22 16:58:28,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104253 to 104245. [2020-12-22 16:58:28,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104245 states. [2020-12-22 16:58:29,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104245 states to 104245 states and 137247 transitions. [2020-12-22 16:58:29,209 INFO L78 Accepts]: Start accepts. Automaton has 104245 states and 137247 transitions. Word has length 79 [2020-12-22 16:58:29,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:58:29,209 INFO L481 AbstractCegarLoop]: Abstraction has 104245 states and 137247 transitions. [2020-12-22 16:58:29,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:58:29,210 INFO L276 IsEmpty]: Start isEmpty. Operand 104245 states and 137247 transitions. [2020-12-22 16:58:29,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-22 16:58:29,346 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:58:29,347 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-12-22 16:58:29,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 16:58:29,347 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 16:58:29,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:58:29,348 INFO L82 PathProgramCache]: Analyzing trace with hash 327484887, now seen corresponding path program 1 times [2020-12-22 16:58:29,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:58:29,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848753398] [2020-12-22 16:58:29,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:58:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:58:29,705 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 16:58:29,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848753398] [2020-12-22 16:58:29,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:58:29,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:58:29,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141892081] [2020-12-22 16:58:29,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:58:29,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:58:29,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:58:29,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:58:29,708 INFO L87 Difference]: Start difference. First operand 104245 states and 137247 transitions. Second operand 3 states. [2020-12-22 16:58:38,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:58:38,809 INFO L93 Difference]: Finished difference Result 295664 states and 388024 transitions. [2020-12-22 16:58:38,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:58:38,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-12-22 16:58:38,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:58:40,339 INFO L225 Difference]: With dead ends: 295664 [2020-12-22 16:58:40,339 INFO L226 Difference]: Without dead ends: 191511 [2020-12-22 16:58:41,538 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 16:58:41,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191511 states. [2020-12-22 16:58:47,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191511 to 191199. [2020-12-22 16:58:47,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191199 states. [2020-12-22 16:58:48,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191199 states to 191199 states and 249870 transitions. [2020-12-22 16:58:48,731 INFO L78 Accepts]: Start accepts. Automaton has 191199 states and 249870 transitions. Word has length 112 [2020-12-22 16:58:48,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:58:48,731 INFO L481 AbstractCegarLoop]: Abstraction has 191199 states and 249870 transitions. [2020-12-22 16:58:48,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:58:48,732 INFO L276 IsEmpty]: Start isEmpty. Operand 191199 states and 249870 transitions. [2020-12-22 16:58:48,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-12-22 16:58:48,820 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:58:48,820 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-12-22 16:58:48,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 16:58:48,821 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 16:58:48,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:58:48,822 INFO L82 PathProgramCache]: Analyzing trace with hash -735697307, now seen corresponding path program 1 times [2020-12-22 16:58:48,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:58:48,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119923630] [2020-12-22 16:58:48,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:58:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:58:49,180 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:58:49,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119923630] [2020-12-22 16:58:49,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:58:49,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:58:49,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216253857] [2020-12-22 16:58:49,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:58:49,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:58:49,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:58:49,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:58:49,183 INFO L87 Difference]: Start difference. First operand 191199 states and 249870 transitions. Second operand 3 states. [2020-12-22 16:58:58,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:58:58,769 INFO L93 Difference]: Finished difference Result 399286 states and 522688 transitions. [2020-12-22 16:58:58,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:58:58,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-12-22 16:58:58,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:59:00,291 INFO L225 Difference]: With dead ends: 399286 [2020-12-22 16:59:00,291 INFO L226 Difference]: Without dead ends: 207346 [2020-12-22 16:59:01,443 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 16:59:01,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207346 states. [2020-12-22 16:59:07,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207346 to 207156. [2020-12-22 16:59:07,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207156 states. [2020-12-22 16:59:08,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207156 states to 207156 states and 271250 transitions. [2020-12-22 16:59:08,903 INFO L78 Accepts]: Start accepts. Automaton has 207156 states and 271250 transitions. Word has length 129 [2020-12-22 16:59:08,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:59:08,903 INFO L481 AbstractCegarLoop]: Abstraction has 207156 states and 271250 transitions. [2020-12-22 16:59:08,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:59:08,903 INFO L276 IsEmpty]: Start isEmpty. Operand 207156 states and 271250 transitions. [2020-12-22 16:59:08,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-12-22 16:59:08,930 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:59:08,931 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-12-22 16:59:08,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 16:59:08,931 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 16:59:08,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:59:08,932 INFO L82 PathProgramCache]: Analyzing trace with hash -15215207, now seen corresponding path program 1 times [2020-12-22 16:59:08,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:59:08,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473579251] [2020-12-22 16:59:08,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:59:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:59:09,192 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 16:59:09,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473579251] [2020-12-22 16:59:09,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:59:09,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:59:09,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758511515] [2020-12-22 16:59:09,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:59:09,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:59:09,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:59:09,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:59:09,199 INFO L87 Difference]: Start difference. First operand 207156 states and 271250 transitions. Second operand 3 states. [2020-12-22 16:59:24,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:59:24,380 INFO L93 Difference]: Finished difference Result 493043 states and 646278 transitions. [2020-12-22 16:59:24,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:59:24,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-12-22 16:59:24,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:59:27,231 INFO L225 Difference]: With dead ends: 493043 [2020-12-22 16:59:27,233 INFO L226 Difference]: Without dead ends: 286814 [2020-12-22 16:59:29,244 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 16:59:29,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286814 states. [2020-12-22 16:59:37,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286814 to 286624. [2020-12-22 16:59:37,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286624 states. [2020-12-22 16:59:39,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286624 states to 286624 states and 375672 transitions. [2020-12-22 16:59:39,546 INFO L78 Accepts]: Start accepts. Automaton has 286624 states and 375672 transitions. Word has length 132 [2020-12-22 16:59:39,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:59:39,547 INFO L481 AbstractCegarLoop]: Abstraction has 286624 states and 375672 transitions. [2020-12-22 16:59:39,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:59:39,547 INFO L276 IsEmpty]: Start isEmpty. Operand 286624 states and 375672 transitions. [2020-12-22 16:59:39,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-12-22 16:59:39,578 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:59:39,579 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 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] [2020-12-22 16:59:39,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 16:59:39,579 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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 16:59:39,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:59:39,580 INFO L82 PathProgramCache]: Analyzing trace with hash 915365767, now seen corresponding path program 1 times [2020-12-22 16:59:39,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:59:39,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582451270] [2020-12-22 16:59:39,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:59:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:59:39,838 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:59:39,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582451270] [2020-12-22 16:59:39,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:59:39,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:59:39,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822070025] [2020-12-22 16:59:39,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:59:39,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:59:39,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:59:39,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:59:39,841 INFO L87 Difference]: Start difference. First operand 286624 states and 375672 transitions. Second operand 3 states. [2020-12-22 16:59:54,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:59:54,747 INFO L93 Difference]: Finished difference Result 651851 states and 854866 transitions. [2020-12-22 16:59:54,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:59:54,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-12-22 16:59:54,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:59:57,891 INFO L225 Difference]: With dead ends: 651851 [2020-12-22 16:59:57,891 INFO L226 Difference]: Without dead ends: 365328 [2020-12-22 17:00:01,568 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 17:00:01,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365328 states.