/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-validator-v0.8/linux-stable-063f96c-1-144_1a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 13:46:03,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 13:46:03,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 13:46:04,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 13:46:04,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 13:46:04,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 13:46:04,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 13:46:04,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 13:46:04,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 13:46:04,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 13:46:04,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 13:46:04,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 13:46:04,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 13:46:04,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 13:46:04,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 13:46:04,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 13:46:04,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 13:46:04,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 13:46:04,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 13:46:04,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 13:46:04,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 13:46:04,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 13:46:04,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 13:46:04,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 13:46:04,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 13:46:04,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 13:46:04,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 13:46:04,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 13:46:04,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 13:46:04,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 13:46:04,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 13:46:04,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 13:46:04,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 13:46:04,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 13:46:04,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 13:46:04,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 13:46:04,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 13:46:04,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 13:46:04,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 13:46:04,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 13:46:04,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 13:46:04,142 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 13:46:04,168 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 13:46:04,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 13:46:04,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 13:46:04,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 13:46:04,170 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 13:46:04,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 13:46:04,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 13:46:04,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 13:46:04,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 13:46:04,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 13:46:04,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 13:46:04,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 13:46:04,172 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 13:46:04,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 13:46:04,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 13:46:04,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 13:46:04,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 13:46:04,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:46:04,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 13:46:04,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 13:46:04,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 13:46:04,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 13:46:04,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 13:46:04,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 13:46:04,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 13:46:04,175 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 13:46:04,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 13:46:04,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 13:46:04,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 13:46:04,622 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 13:46:04,623 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 13:46:04,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_1a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2020-12-22 13:46:04,711 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc842118/df7797610e2d40a7adebb02f0139f5f4/FLAG58c95db2c [2020-12-22 13:46:05,766 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 13:46:05,767 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_1a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2020-12-22 13:46:05,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc842118/df7797610e2d40a7adebb02f0139f5f4/FLAG58c95db2c [2020-12-22 13:46:06,152 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc842118/df7797610e2d40a7adebb02f0139f5f4 [2020-12-22 13:46:06,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 13:46:06,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 13:46:06,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 13:46:06,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 13:46:06,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 13:46:06,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:46:06" (1/1) ... [2020-12-22 13:46:06,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22bef2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:46:06, skipping insertion in model container [2020-12-22 13:46:06,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:46:06" (1/1) ... [2020-12-22 13:46:06,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 13:46:06,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 13:46:08,290 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-validator-v0.8/linux-stable-063f96c-1-144_1a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[239447,239460] [2020-12-22 13:46:08,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:46:08,398 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 13:46:08,913 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_1a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[239447,239460] [2020-12-22 13:46:08,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:46:09,356 INFO L208 MainTranslator]: Completed translation [2020-12-22 13:46:09,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:46:09 WrapperNode [2020-12-22 13:46:09,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 13:46:09,359 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 13:46:09,359 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 13:46:09,359 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 13:46:09,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:46:09" (1/1) ... [2020-12-22 13:46:09,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:46:09" (1/1) ... [2020-12-22 13:46:11,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 13:46:11,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 13:46:11,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 13:46:11,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 13:46:11,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:46:09" (1/1) ... [2020-12-22 13:46:11,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:46:09" (1/1) ... [2020-12-22 13:46:12,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:46:09" (1/1) ... [2020-12-22 13:46:12,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:46:09" (1/1) ... [2020-12-22 13:46:13,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:46:09" (1/1) ... [2020-12-22 13:46:13,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:46:09" (1/1) ... [2020-12-22 13:46:14,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:46:09" (1/1) ... [2020-12-22 13:46:14,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 13:46:14,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 13:46:14,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 13:46:14,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 13:46:14,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:46:09" (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 13:46:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 13:46:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 13:46:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2020-12-22 13:46:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2020-12-22 13:46:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-12-22 13:46:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-12-22 13:46:14,728 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2020-12-22 13:46:14,728 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2020-12-22 13:46:14,728 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2020-12-22 13:46:14,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2020-12-22 13:46:14,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2020-12-22 13:46:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2020-12-22 13:46:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2020-12-22 13:46:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2020-12-22 13:46:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 13:46:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27 [2020-12-22 13:46:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27 [2020-12-22 13:46:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 13:46:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2020-12-22 13:46:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2020-12-22 13:46:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2020-12-22 13:46:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2020-12-22 13:46:14,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2020-12-22 13:46:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2020-12-22 13:46:14,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 13:46:14,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 13:46:14,732 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2020-12-22 13:46:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2020-12-22 13:46:14,732 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2020-12-22 13:46:14,732 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2020-12-22 13:46:14,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 13:46:14,733 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2020-12-22 13:46:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2020-12-22 13:46:14,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 13:46:14,733 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2020-12-22 13:46:14,733 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2020-12-22 13:46:14,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 13:46:14,734 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2020-12-22 13:46:14,734 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2020-12-22 13:46:14,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 13:46:14,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_32 [2020-12-22 13:46:14,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_32 [2020-12-22 13:46:14,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 13:46:14,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 13:46:14,734 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:46:14,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:46:14,735 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2020-12-22 13:46:14,735 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2020-12-22 13:46:14,735 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2020-12-22 13:46:14,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2020-12-22 13:46:14,735 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2020-12-22 13:46:14,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2020-12-22 13:46:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2020-12-22 13:46:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 13:46:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-12-22 13:46:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 13:46:14,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 13:47:01,780 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 13:47:01,781 INFO L299 CfgBuilder]: Removed 14764 assume(true) statements. [2020-12-22 13:47:01,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:47:01 BoogieIcfgContainer [2020-12-22 13:47:01,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 13:47:01,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 13:47:01,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 13:47:01,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 13:47:01,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:46:06" (1/3) ... [2020-12-22 13:47:01,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4c914b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:47:01, skipping insertion in model container [2020-12-22 13:47:01,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:46:09" (2/3) ... [2020-12-22 13:47:01,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4c914b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:47:01, skipping insertion in model container [2020-12-22 13:47:01,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:47:01" (3/3) ... [2020-12-22 13:47:01,803 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-063f96c-1-144_1a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2020-12-22 13:47:01,810 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 13:47:01,820 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-22 13:47:01,841 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 13:47:01,908 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 13:47:01,909 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 13:47:01,909 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 13:47:01,909 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 13:47:01,909 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 13:47:01,909 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 13:47:01,909 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 13:47:01,909 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 13:47:02,046 INFO L276 IsEmpty]: Start isEmpty. Operand 11120 states. [2020-12-22 13:47:02,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 13:47:02,067 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:47:02,068 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] [2020-12-22 13:47:02,068 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:47:02,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:47:02,075 INFO L82 PathProgramCache]: Analyzing trace with hash -490614643, now seen corresponding path program 1 times [2020-12-22 13:47:02,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:47:02,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370388372] [2020-12-22 13:47:02,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:47:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:47:02,715 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 13:47:02,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370388372] [2020-12-22 13:47:02,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:47:02,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:47:02,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443482941] [2020-12-22 13:47:02,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 13:47:02,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:47:02,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 13:47:02,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 13:47:02,740 INFO L87 Difference]: Start difference. First operand 11120 states. Second operand 2 states. [2020-12-22 13:47:03,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:47:03,325 INFO L93 Difference]: Finished difference Result 22236 states and 32001 transitions. [2020-12-22 13:47:03,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 13:47:03,327 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 47 [2020-12-22 13:47:03,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:47:03,427 INFO L225 Difference]: With dead ends: 22236 [2020-12-22 13:47:03,427 INFO L226 Difference]: Without dead ends: 11103 [2020-12-22 13:47:03,473 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 13:47:03,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11103 states. [2020-12-22 13:47:03,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11103 to 11103. [2020-12-22 13:47:03,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11103 states. [2020-12-22 13:47:03,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11103 states to 11103 states and 15930 transitions. [2020-12-22 13:47:03,951 INFO L78 Accepts]: Start accepts. Automaton has 11103 states and 15930 transitions. Word has length 47 [2020-12-22 13:47:03,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:47:03,952 INFO L481 AbstractCegarLoop]: Abstraction has 11103 states and 15930 transitions. [2020-12-22 13:47:03,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 13:47:03,953 INFO L276 IsEmpty]: Start isEmpty. Operand 11103 states and 15930 transitions. [2020-12-22 13:47:03,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 13:47:03,960 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:47:03,961 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] [2020-12-22 13:47:03,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 13:47:03,961 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:47:03,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:47:03,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1635357639, now seen corresponding path program 1 times [2020-12-22 13:47:03,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:47:03,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802895178] [2020-12-22 13:47:03,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:47:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:47:04,322 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 13:47:04,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802895178] [2020-12-22 13:47:04,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:47:04,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:47:04,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118696962] [2020-12-22 13:47:04,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:47:04,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:47:04,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:47:04,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:47:04,340 INFO L87 Difference]: Start difference. First operand 11103 states and 15930 transitions. Second operand 3 states. [2020-12-22 13:47:11,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:47:11,700 INFO L93 Difference]: Finished difference Result 33242 states and 47793 transitions. [2020-12-22 13:47:11,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:47:11,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-12-22 13:47:11,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:47:11,820 INFO L225 Difference]: With dead ends: 33242 [2020-12-22 13:47:11,820 INFO L226 Difference]: Without dead ends: 22167 [2020-12-22 13:47:11,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 13:47:11,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22167 states. [2020-12-22 13:47:12,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22167 to 22167. [2020-12-22 13:47:12,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22167 states. [2020-12-22 13:47:12,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22167 states to 22167 states and 31194 transitions. [2020-12-22 13:47:12,648 INFO L78 Accepts]: Start accepts. Automaton has 22167 states and 31194 transitions. Word has length 47 [2020-12-22 13:47:12,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:47:12,650 INFO L481 AbstractCegarLoop]: Abstraction has 22167 states and 31194 transitions. [2020-12-22 13:47:12,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:47:12,651 INFO L276 IsEmpty]: Start isEmpty. Operand 22167 states and 31194 transitions. [2020-12-22 13:47:12,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 13:47:12,656 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:47:12,656 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 13:47:12,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 13:47:12,656 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:47:12,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:47:12,658 INFO L82 PathProgramCache]: Analyzing trace with hash -843473344, now seen corresponding path program 1 times [2020-12-22 13:47:12,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:47:12,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667561181] [2020-12-22 13:47:12,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:47:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:47:12,931 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 13:47:12,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667561181] [2020-12-22 13:47:12,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:47:12,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:47:12,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980354360] [2020-12-22 13:47:12,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:47:12,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:47:12,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:47:12,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:47:12,933 INFO L87 Difference]: Start difference. First operand 22167 states and 31194 transitions. Second operand 3 states. [2020-12-22 13:47:16,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:47:16,985 INFO L93 Difference]: Finished difference Result 66127 states and 93206 transitions. [2020-12-22 13:47:16,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:47:16,985 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-12-22 13:47:16,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:47:17,149 INFO L225 Difference]: With dead ends: 66127 [2020-12-22 13:47:17,149 INFO L226 Difference]: Without dead ends: 43988 [2020-12-22 13:47:17,224 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 13:47:17,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43988 states. [2020-12-22 13:47:18,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43988 to 43970. [2020-12-22 13:47:18,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43970 states. [2020-12-22 13:47:18,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43970 states to 43970 states and 61258 transitions. [2020-12-22 13:47:18,827 INFO L78 Accepts]: Start accepts. Automaton has 43970 states and 61258 transitions. Word has length 48 [2020-12-22 13:47:18,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:47:18,828 INFO L481 AbstractCegarLoop]: Abstraction has 43970 states and 61258 transitions. [2020-12-22 13:47:18,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:47:18,828 INFO L276 IsEmpty]: Start isEmpty. Operand 43970 states and 61258 transitions. [2020-12-22 13:47:18,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-22 13:47:18,832 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:47:18,832 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] [2020-12-22 13:47:18,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 13:47:18,833 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:47:18,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:47:18,834 INFO L82 PathProgramCache]: Analyzing trace with hash -377822479, now seen corresponding path program 1 times [2020-12-22 13:47:18,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:47:18,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772754833] [2020-12-22 13:47:18,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:47:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:47:19,036 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 13:47:19,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772754833] [2020-12-22 13:47:19,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:47:19,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:47:19,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325052461] [2020-12-22 13:47:19,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:47:19,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:47:19,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:47:19,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:47:19,039 INFO L87 Difference]: Start difference. First operand 43970 states and 61258 transitions. Second operand 3 states. [2020-12-22 13:47:19,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:47:19,995 INFO L93 Difference]: Finished difference Result 43970 states and 61258 transitions. [2020-12-22 13:47:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:47:19,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2020-12-22 13:47:19,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:47:20,123 INFO L225 Difference]: With dead ends: 43970 [2020-12-22 13:47:20,123 INFO L226 Difference]: Without dead ends: 43968 [2020-12-22 13:47:20,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 13:47:20,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43968 states. [2020-12-22 13:47:21,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43968 to 43968. [2020-12-22 13:47:21,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43968 states. [2020-12-22 13:47:21,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43968 states to 43968 states and 61256 transitions. [2020-12-22 13:47:21,534 INFO L78 Accepts]: Start accepts. Automaton has 43968 states and 61256 transitions. Word has length 49 [2020-12-22 13:47:21,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:47:21,535 INFO L481 AbstractCegarLoop]: Abstraction has 43968 states and 61256 transitions. [2020-12-22 13:47:21,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:47:21,535 INFO L276 IsEmpty]: Start isEmpty. Operand 43968 states and 61256 transitions. [2020-12-22 13:47:21,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 13:47:21,538 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:47:21,539 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] [2020-12-22 13:47:21,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 13:47:21,539 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:47:21,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:47:21,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1172452458, now seen corresponding path program 1 times [2020-12-22 13:47:21,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:47:21,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358746059] [2020-12-22 13:47:21,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:47:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:47:21,773 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 13:47:21,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358746059] [2020-12-22 13:47:21,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:47:21,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:47:21,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73358618] [2020-12-22 13:47:21,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:47:21,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:47:21,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:47:21,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:47:21,775 INFO L87 Difference]: Start difference. First operand 43968 states and 61256 transitions. Second operand 3 states. [2020-12-22 13:47:22,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:47:22,771 INFO L93 Difference]: Finished difference Result 43968 states and 61256 transitions. [2020-12-22 13:47:22,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:47:22,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-12-22 13:47:22,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:47:22,967 INFO L225 Difference]: With dead ends: 43968 [2020-12-22 13:47:22,968 INFO L226 Difference]: Without dead ends: 37972 [2020-12-22 13:47:22,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 13:47:23,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37972 states. [2020-12-22 13:47:24,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37972 to 37972. [2020-12-22 13:47:24,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37972 states. [2020-12-22 13:47:24,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37972 states to 37972 states and 53217 transitions. [2020-12-22 13:47:24,367 INFO L78 Accepts]: Start accepts. Automaton has 37972 states and 53217 transitions. Word has length 50 [2020-12-22 13:47:24,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:47:24,370 INFO L481 AbstractCegarLoop]: Abstraction has 37972 states and 53217 transitions. [2020-12-22 13:47:24,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:47:24,370 INFO L276 IsEmpty]: Start isEmpty. Operand 37972 states and 53217 transitions. [2020-12-22 13:47:24,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 13:47:24,391 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:47:24,391 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 13:47:24,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 13:47:24,392 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:47:24,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:47:24,393 INFO L82 PathProgramCache]: Analyzing trace with hash 861531681, now seen corresponding path program 1 times [2020-12-22 13:47:24,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:47:24,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824890430] [2020-12-22 13:47:24,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:47:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:47:24,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:47:24,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824890430] [2020-12-22 13:47:24,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:47:24,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:47:24,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787484761] [2020-12-22 13:47:24,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:47:24,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:47:24,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:47:24,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:47:24,646 INFO L87 Difference]: Start difference. First operand 37972 states and 53217 transitions. Second operand 3 states. [2020-12-22 13:47:26,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:47:26,322 INFO L93 Difference]: Finished difference Result 91243 states and 127894 transitions. [2020-12-22 13:47:26,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:47:26,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-12-22 13:47:26,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:47:26,478 INFO L225 Difference]: With dead ends: 91243 [2020-12-22 13:47:26,478 INFO L226 Difference]: Without dead ends: 53299 [2020-12-22 13:47:26,551 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 13:47:26,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53299 states. [2020-12-22 13:47:28,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53299 to 53284. [2020-12-22 13:47:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53284 states. [2020-12-22 13:47:28,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53284 states to 53284 states and 74689 transitions. [2020-12-22 13:47:28,803 INFO L78 Accepts]: Start accepts. Automaton has 53284 states and 74689 transitions. Word has length 73 [2020-12-22 13:47:28,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:47:28,804 INFO L481 AbstractCegarLoop]: Abstraction has 53284 states and 74689 transitions. [2020-12-22 13:47:28,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:47:28,804 INFO L276 IsEmpty]: Start isEmpty. Operand 53284 states and 74689 transitions. [2020-12-22 13:47:28,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 13:47:28,839 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:47:28,839 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:47:28,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 13:47:28,840 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:47:28,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:47:28,840 INFO L82 PathProgramCache]: Analyzing trace with hash -901970140, now seen corresponding path program 1 times [2020-12-22 13:47:28,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:47:28,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739681228] [2020-12-22 13:47:28,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:47:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:47:29,061 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:47:29,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739681228] [2020-12-22 13:47:29,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:47:29,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:47:29,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430024235] [2020-12-22 13:47:29,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:47:29,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:47:29,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:47:29,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:47:29,064 INFO L87 Difference]: Start difference. First operand 53284 states and 74689 transitions. Second operand 4 states. [2020-12-22 13:47:31,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:47:31,853 INFO L93 Difference]: Finished difference Result 129992 states and 182353 transitions. [2020-12-22 13:47:31,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 13:47:31,854 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2020-12-22 13:47:31,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:47:32,053 INFO L225 Difference]: With dead ends: 129992 [2020-12-22 13:47:32,054 INFO L226 Difference]: Without dead ends: 76736 [2020-12-22 13:47:32,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:47:32,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76736 states. [2020-12-22 13:47:34,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76736 to 53298. [2020-12-22 13:47:34,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53298 states. [2020-12-22 13:47:34,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53298 states to 53298 states and 74703 transitions. [2020-12-22 13:47:34,563 INFO L78 Accepts]: Start accepts. Automaton has 53298 states and 74703 transitions. Word has length 99 [2020-12-22 13:47:34,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:47:34,564 INFO L481 AbstractCegarLoop]: Abstraction has 53298 states and 74703 transitions. [2020-12-22 13:47:34,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:47:34,564 INFO L276 IsEmpty]: Start isEmpty. Operand 53298 states and 74703 transitions. [2020-12-22 13:47:34,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-22 13:47:34,601 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:47:34,601 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:47:34,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 13:47:34,602 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:47:34,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:47:34,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1847690109, now seen corresponding path program 1 times [2020-12-22 13:47:34,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:47:34,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722818190] [2020-12-22 13:47:34,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:47:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:47:34,894 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 13:47:34,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722818190] [2020-12-22 13:47:34,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:47:34,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:47:34,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636735801] [2020-12-22 13:47:34,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:47:34,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:47:34,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:47:34,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:47:34,897 INFO L87 Difference]: Start difference. First operand 53298 states and 74703 transitions. Second operand 3 states. [2020-12-22 13:47:39,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:47:39,080 INFO L93 Difference]: Finished difference Result 121768 states and 170906 transitions. [2020-12-22 13:47:39,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:47:39,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-12-22 13:47:39,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:47:39,263 INFO L225 Difference]: With dead ends: 121768 [2020-12-22 13:47:39,263 INFO L226 Difference]: Without dead ends: 68498 [2020-12-22 13:47:39,384 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 13:47:39,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68498 states. [2020-12-22 13:47:42,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68498 to 68498. [2020-12-22 13:47:42,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68498 states. [2020-12-22 13:47:42,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68498 states to 68498 states and 96217 transitions. [2020-12-22 13:47:42,234 INFO L78 Accepts]: Start accepts. Automaton has 68498 states and 96217 transitions. Word has length 103 [2020-12-22 13:47:42,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:47:42,235 INFO L481 AbstractCegarLoop]: Abstraction has 68498 states and 96217 transitions. [2020-12-22 13:47:42,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:47:42,235 INFO L276 IsEmpty]: Start isEmpty. Operand 68498 states and 96217 transitions. [2020-12-22 13:47:42,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-12-22 13:47:42,311 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:47:42,311 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:47:42,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 13:47:42,312 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:47:42,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:47:42,312 INFO L82 PathProgramCache]: Analyzing trace with hash 808525327, now seen corresponding path program 1 times [2020-12-22 13:47:42,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:47:42,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122399682] [2020-12-22 13:47:42,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:47:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:47:42,523 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 13:47:42,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122399682] [2020-12-22 13:47:42,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:47:42,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:47:42,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152829492] [2020-12-22 13:47:42,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:47:42,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:47:42,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:47:42,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:47:42,529 INFO L87 Difference]: Start difference. First operand 68498 states and 96217 transitions. Second operand 3 states. [2020-12-22 13:47:45,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:47:45,199 INFO L93 Difference]: Finished difference Result 115361 states and 161881 transitions. [2020-12-22 13:47:45,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:47:45,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2020-12-22 13:47:45,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:47:45,481 INFO L225 Difference]: With dead ends: 115361 [2020-12-22 13:47:45,481 INFO L226 Difference]: Without dead ends: 46889 [2020-12-22 13:47:45,572 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 13:47:45,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46889 states. [2020-12-22 13:47:46,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46889 to 46883. [2020-12-22 13:47:46,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46883 states. [2020-12-22 13:47:47,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46883 states to 46883 states and 65683 transitions. [2020-12-22 13:47:47,096 INFO L78 Accepts]: Start accepts. Automaton has 46883 states and 65683 transitions. Word has length 118 [2020-12-22 13:47:47,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:47:47,096 INFO L481 AbstractCegarLoop]: Abstraction has 46883 states and 65683 transitions. [2020-12-22 13:47:47,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:47:47,096 INFO L276 IsEmpty]: Start isEmpty. Operand 46883 states and 65683 transitions. [2020-12-22 13:47:47,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-12-22 13:47:47,151 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:47:47,152 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:47:47,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 13:47:47,152 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:47:47,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:47:47,153 INFO L82 PathProgramCache]: Analyzing trace with hash 156747231, now seen corresponding path program 1 times [2020-12-22 13:47:47,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:47:47,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359124062] [2020-12-22 13:47:47,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:47:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:47:47,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-12-22 13:47:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:47:47,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-12-22 13:47:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:47:47,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-12-22 13:47:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:47:47,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-12-22 13:47:47,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:47:47,824 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:47:47,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359124062] [2020-12-22 13:47:47,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:47:47,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 13:47:47,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079617348] [2020-12-22 13:47:47,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:47:47,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:47:47,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:47:47,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:47:47,826 INFO L87 Difference]: Start difference. First operand 46883 states and 65683 transitions. Second operand 5 states. [2020-12-22 13:48:27,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:48:27,552 INFO L93 Difference]: Finished difference Result 94568 states and 132891 transitions. [2020-12-22 13:48:27,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 13:48:27,556 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-12-22 13:48:27,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:48:27,681 INFO L225 Difference]: With dead ends: 94568 [2020-12-22 13:48:27,681 INFO L226 Difference]: Without dead ends: 47713 [2020-12-22 13:48:27,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:48:27,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47713 states. [2020-12-22 13:48:29,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47713 to 47043. [2020-12-22 13:48:29,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47043 states. [2020-12-22 13:48:29,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47043 states to 47043 states and 65883 transitions. [2020-12-22 13:48:29,545 INFO L78 Accepts]: Start accepts. Automaton has 47043 states and 65883 transitions. Word has length 133 [2020-12-22 13:48:29,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:48:29,545 INFO L481 AbstractCegarLoop]: Abstraction has 47043 states and 65883 transitions. [2020-12-22 13:48:29,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 13:48:29,546 INFO L276 IsEmpty]: Start isEmpty. Operand 47043 states and 65883 transitions. [2020-12-22 13:48:29,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-12-22 13:48:29,596 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:48:29,596 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:48:29,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 13:48:29,596 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:48:29,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:48:29,597 INFO L82 PathProgramCache]: Analyzing trace with hash -645175856, now seen corresponding path program 1 times [2020-12-22 13:48:29,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:48:29,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688013612] [2020-12-22 13:48:29,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:48:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:48:29,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-12-22 13:48:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:48:29,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-12-22 13:48:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:48:30,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-12-22 13:48:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:48:30,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-12-22 13:48:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:48:30,099 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:48:30,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688013612] [2020-12-22 13:48:30,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:48:30,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 13:48:30,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528190760] [2020-12-22 13:48:30,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 13:48:30,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:48:30,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 13:48:30,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:48:30,102 INFO L87 Difference]: Start difference. First operand 47043 states and 65883 transitions. Second operand 6 states. [2020-12-22 13:49:18,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:49:18,754 INFO L93 Difference]: Finished difference Result 94709 states and 132532 transitions. [2020-12-22 13:49:18,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 13:49:18,755 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 135 [2020-12-22 13:49:18,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:49:18,900 INFO L225 Difference]: With dead ends: 94709 [2020-12-22 13:49:18,900 INFO L226 Difference]: Without dead ends: 47694 [2020-12-22 13:49:19,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 13:49:19,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47694 states. [2020-12-22 13:49:21,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47694 to 47023. [2020-12-22 13:49:21,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47023 states. [2020-12-22 13:49:21,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47023 states to 47023 states and 65838 transitions. [2020-12-22 13:49:21,128 INFO L78 Accepts]: Start accepts. Automaton has 47023 states and 65838 transitions. Word has length 135 [2020-12-22 13:49:21,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:49:21,128 INFO L481 AbstractCegarLoop]: Abstraction has 47023 states and 65838 transitions. [2020-12-22 13:49:21,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 13:49:21,129 INFO L276 IsEmpty]: Start isEmpty. Operand 47023 states and 65838 transitions. [2020-12-22 13:49:21,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-12-22 13:49:21,176 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:49:21,176 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:21,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 13:49:21,177 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:49:21,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:49:21,177 INFO L82 PathProgramCache]: Analyzing trace with hash 169280119, now seen corresponding path program 1 times [2020-12-22 13:49:21,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:49:21,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371237694] [2020-12-22 13:49:21,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:49:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:49:21,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-12-22 13:49:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:49:21,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-12-22 13:49:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:49:21,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-12-22 13:49:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:49:21,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-12-22 13:49:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:49:21,663 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:49:21,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371237694] [2020-12-22 13:49:21,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:49:21,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 13:49:21,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314360007] [2020-12-22 13:49:21,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 13:49:21,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:49:21,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 13:49:21,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:49:21,667 INFO L87 Difference]: Start difference. First operand 47023 states and 65838 transitions. Second operand 6 states.