/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 13:13:10,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 13:13:10,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 13:13:10,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 13:13:10,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 13:13:10,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 13:13:10,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 13:13:10,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 13:13:10,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 13:13:10,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 13:13:10,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 13:13:10,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 13:13:10,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 13:13:10,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 13:13:10,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 13:13:10,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 13:13:10,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 13:13:10,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 13:13:10,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 13:13:10,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 13:13:10,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 13:13:10,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 13:13:10,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 13:13:10,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 13:13:10,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 13:13:10,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 13:13:10,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 13:13:10,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 13:13:10,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 13:13:10,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 13:13:10,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 13:13:10,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 13:13:10,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 13:13:10,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 13:13:10,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 13:13:10,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 13:13:10,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 13:13:10,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 13:13:10,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 13:13:10,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 13:13:10,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 13:13:10,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 13:13:10,510 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 13:13:10,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 13:13:10,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 13:13:10,512 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 13:13:10,513 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 13:13:10,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 13:13:10,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 13:13:10,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 13:13:10,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 13:13:10,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 13:13:10,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 13:13:10,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 13:13:10,514 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 13:13:10,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 13:13:10,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 13:13:10,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 13:13:10,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 13:13:10,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:13:10,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 13:13:10,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 13:13:10,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 13:13:10,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 13:13:10,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 13:13:10,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 13:13:10,517 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 13:13:10,517 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 13:13:10,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 13:13:10,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 13:13:11,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 13:13:11,003 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 13:13:11,004 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 13:13:11,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2020-12-22 13:13:11,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13fd8ca73/cb83a0364cc048fe91ce8f128f9400fb/FLAG3171429c5 [2020-12-22 13:13:12,314 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 13:13:12,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2020-12-22 13:13:12,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13fd8ca73/cb83a0364cc048fe91ce8f128f9400fb/FLAG3171429c5 [2020-12-22 13:13:12,708 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13fd8ca73/cb83a0364cc048fe91ce8f128f9400fb [2020-12-22 13:13:12,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 13:13:12,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 13:13:12,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 13:13:12,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 13:13:12,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 13:13:12,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:13:12" (1/1) ... [2020-12-22 13:13:12,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@566ae182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:12, skipping insertion in model container [2020-12-22 13:13:12,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:13:12" (1/1) ... [2020-12-22 13:13:12,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 13:13:12,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 13:13:14,585 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2020-12-22 13:13:15,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:13:15,432 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 13:13:15,614 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2020-12-22 13:13:15,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:13:16,343 INFO L208 MainTranslator]: Completed translation [2020-12-22 13:13:16,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:16 WrapperNode [2020-12-22 13:13:16,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 13:13:16,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 13:13:16,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 13:13:16,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 13:13:16,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:16" (1/1) ... [2020-12-22 13:13:16,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:16" (1/1) ... [2020-12-22 13:13:17,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 13:13:17,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 13:13:17,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 13:13:17,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 13:13:17,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:16" (1/1) ... [2020-12-22 13:13:17,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:16" (1/1) ... [2020-12-22 13:13:17,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:16" (1/1) ... [2020-12-22 13:13:17,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:16" (1/1) ... [2020-12-22 13:13:17,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:16" (1/1) ... [2020-12-22 13:13:17,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:16" (1/1) ... [2020-12-22 13:13:17,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:16" (1/1) ... [2020-12-22 13:13:17,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 13:13:17,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 13:13:17,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 13:13:17,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 13:13:17,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:16" (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 13:13:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 13:13:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 13:13:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-12-22 13:13:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-12-22 13:13:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 13:13:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-12-22 13:13:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 13:13:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2020-12-22 13:13:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 13:13:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 13:13:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 13:13:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 13:13:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2020-12-22 13:13:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2020-12-22 13:13:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2020-12-22 13:13:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2020-12-22 13:13:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 13:13:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2020-12-22 13:13:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2020-12-22 13:13:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 13:13:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2020-12-22 13:13:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2020-12-22 13:13:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 13:13:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 13:13:18,202 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:13:18,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:13:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_irq [2020-12-22 13:13:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_irq [2020-12-22 13:13:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2020-12-22 13:13:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2020-12-22 13:13:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 13:13:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 13:13:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 13:13:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_bulk_callback [2020-12-22 13:13:18,204 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_bulk_callback [2020-12-22 13:13:44,902 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 13:13:44,903 INFO L299 CfgBuilder]: Removed 1975 assume(true) statements. [2020-12-22 13:13:44,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:13:44 BoogieIcfgContainer [2020-12-22 13:13:44,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 13:13:44,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 13:13:44,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 13:13:44,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 13:13:44,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:13:12" (1/3) ... [2020-12-22 13:13:44,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586bd7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:13:44, skipping insertion in model container [2020-12-22 13:13:44,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:13:16" (2/3) ... [2020-12-22 13:13:44,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586bd7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:13:44, skipping insertion in model container [2020-12-22 13:13:44,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:13:44" (3/3) ... [2020-12-22 13:13:44,917 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2020-12-22 13:13:44,924 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 13:13:44,931 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2020-12-22 13:13:44,953 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-12-22 13:13:44,992 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 13:13:44,992 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 13:13:44,992 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 13:13:44,992 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 13:13:44,992 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 13:13:44,992 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 13:13:44,993 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 13:13:44,993 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 13:13:45,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1922 states. [2020-12-22 13:13:45,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 13:13:45,054 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:13:45,055 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 13:13:45,056 INFO L429 AbstractCegarLoop]: === Iteration 1 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, 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 13:13:45,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:13:45,062 INFO L82 PathProgramCache]: Analyzing trace with hash 2106712065, now seen corresponding path program 1 times [2020-12-22 13:13:45,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:13:45,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732402070] [2020-12-22 13:13:45,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:13:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:13:46,210 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 13:13:46,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732402070] [2020-12-22 13:13:46,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:13:46,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:13:46,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395117701] [2020-12-22 13:13:46,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:13:46,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:13:46,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:13:46,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:13:46,237 INFO L87 Difference]: Start difference. First operand 1922 states. Second operand 3 states. [2020-12-22 13:13:46,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:13:46,496 INFO L93 Difference]: Finished difference Result 3840 states and 5274 transitions. [2020-12-22 13:13:46,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:13:46,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-12-22 13:13:46,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:13:46,529 INFO L225 Difference]: With dead ends: 3840 [2020-12-22 13:13:46,530 INFO L226 Difference]: Without dead ends: 1895 [2020-12-22 13:13:46,541 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 13:13:46,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2020-12-22 13:13:46,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1895. [2020-12-22 13:13:46,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1895 states. [2020-12-22 13:13:46,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1895 states to 1895 states and 2468 transitions. [2020-12-22 13:13:46,690 INFO L78 Accepts]: Start accepts. Automaton has 1895 states and 2468 transitions. Word has length 47 [2020-12-22 13:13:46,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:13:46,691 INFO L481 AbstractCegarLoop]: Abstraction has 1895 states and 2468 transitions. [2020-12-22 13:13:46,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:13:46,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1895 states and 2468 transitions. [2020-12-22 13:13:46,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 13:13:46,695 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:13:46,696 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 13:13:46,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 13:13:46,696 INFO L429 AbstractCegarLoop]: === Iteration 2 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, 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 13:13:46,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:13:46,697 INFO L82 PathProgramCache]: Analyzing trace with hash 746153957, now seen corresponding path program 1 times [2020-12-22 13:13:46,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:13:46,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196999728] [2020-12-22 13:13:46,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:13:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:13:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 13:13:47,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196999728] [2020-12-22 13:13:47,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:13:47,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:13:47,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430165646] [2020-12-22 13:13:47,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:13:47,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:13:47,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:13:47,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:13:47,314 INFO L87 Difference]: Start difference. First operand 1895 states and 2468 transitions. Second operand 3 states. [2020-12-22 13:13:49,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:13:49,794 INFO L93 Difference]: Finished difference Result 5338 states and 7018 transitions. [2020-12-22 13:13:49,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:13:49,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-12-22 13:13:49,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:13:49,821 INFO L225 Difference]: With dead ends: 5338 [2020-12-22 13:13:49,821 INFO L226 Difference]: Without dead ends: 3575 [2020-12-22 13:13:49,828 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 13:13:49,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3575 states. [2020-12-22 13:13:49,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3575 to 3567. [2020-12-22 13:13:49,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3567 states. [2020-12-22 13:13:49,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3567 states to 3567 states and 4690 transitions. [2020-12-22 13:13:49,976 INFO L78 Accepts]: Start accepts. Automaton has 3567 states and 4690 transitions. Word has length 48 [2020-12-22 13:13:49,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:13:49,977 INFO L481 AbstractCegarLoop]: Abstraction has 3567 states and 4690 transitions. [2020-12-22 13:13:49,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:13:49,979 INFO L276 IsEmpty]: Start isEmpty. Operand 3567 states and 4690 transitions. [2020-12-22 13:13:49,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 13:13:49,989 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:13:49,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:13:49,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 13:13:49,996 INFO L429 AbstractCegarLoop]: === Iteration 3 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, 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 13:13:49,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:13:49,998 INFO L82 PathProgramCache]: Analyzing trace with hash -355113656, now seen corresponding path program 1 times [2020-12-22 13:13:49,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:13:49,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340854466] [2020-12-22 13:13:50,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:13:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:13:51,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:13:51,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340854466] [2020-12-22 13:13:51,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64321232] [2020-12-22 13:13:51,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:13:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:13:53,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 5195 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-22 13:13:53,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:13:53,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:13:53,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 13:13:53,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-12-22 13:13:53,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887808157] [2020-12-22 13:13:53,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 13:13:53,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:13:53,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 13:13:53,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:13:53,740 INFO L87 Difference]: Start difference. First operand 3567 states and 4690 transitions. Second operand 6 states. [2020-12-22 13:13:54,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:13:54,028 INFO L93 Difference]: Finished difference Result 7012 states and 9252 transitions. [2020-12-22 13:13:54,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 13:13:54,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2020-12-22 13:13:54,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:13:54,054 INFO L225 Difference]: With dead ends: 7012 [2020-12-22 13:13:54,054 INFO L226 Difference]: Without dead ends: 3576 [2020-12-22 13:13:54,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:13:54,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2020-12-22 13:13:54,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3576. [2020-12-22 13:13:54,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3576 states. [2020-12-22 13:13:54,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 4699 transitions. [2020-12-22 13:13:54,212 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 4699 transitions. Word has length 56 [2020-12-22 13:13:54,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:13:54,214 INFO L481 AbstractCegarLoop]: Abstraction has 3576 states and 4699 transitions. [2020-12-22 13:13:54,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 13:13:54,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 4699 transitions. [2020-12-22 13:13:54,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 13:13:54,216 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:13:54,217 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] [2020-12-22 13:13:54,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-22 13:13:54,418 INFO L429 AbstractCegarLoop]: === Iteration 4 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, 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 13:13:54,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:13:54,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1541307876, now seen corresponding path program 2 times [2020-12-22 13:13:54,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:13:54,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764482629] [2020-12-22 13:13:54,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:13:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:13:55,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:13:55,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764482629] [2020-12-22 13:13:55,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154548000] [2020-12-22 13:13:55,124 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:16:11,096 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 13:16:11,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 13:16:11,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 5189 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 13:16:11,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:16:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:16:11,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 13:16:11,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2020-12-22 13:16:11,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537866394] [2020-12-22 13:16:11,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:16:11,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:16:11,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:16:11,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:16:11,401 INFO L87 Difference]: Start difference. First operand 3576 states and 4699 transitions. Second operand 3 states. [2020-12-22 13:16:11,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:16:11,911 INFO L93 Difference]: Finished difference Result 10460 states and 13938 transitions. [2020-12-22 13:16:11,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:16:11,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-12-22 13:16:11,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:16:11,953 INFO L225 Difference]: With dead ends: 10460 [2020-12-22 13:16:11,953 INFO L226 Difference]: Without dead ends: 7017 [2020-12-22 13:16:11,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:16:11,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7017 states. [2020-12-22 13:16:12,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7017 to 6997. [2020-12-22 13:16:12,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6997 states. [2020-12-22 13:16:12,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6997 states to 6997 states and 9255 transitions. [2020-12-22 13:16:12,224 INFO L78 Accepts]: Start accepts. Automaton has 6997 states and 9255 transitions. Word has length 57 [2020-12-22 13:16:12,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:16:12,225 INFO L481 AbstractCegarLoop]: Abstraction has 6997 states and 9255 transitions. [2020-12-22 13:16:12,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:16:12,225 INFO L276 IsEmpty]: Start isEmpty. Operand 6997 states and 9255 transitions. [2020-12-22 13:16:12,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-22 13:16:12,228 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:16:12,228 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] [2020-12-22 13:16:12,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:16:12,443 INFO L429 AbstractCegarLoop]: === Iteration 5 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, 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 13:16:12,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:16:12,443 INFO L82 PathProgramCache]: Analyzing trace with hash 535908222, now seen corresponding path program 1 times [2020-12-22 13:16:12,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:16:12,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379081246] [2020-12-22 13:16:12,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:16:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:16:13,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:16:13,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379081246] [2020-12-22 13:16:13,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670391461] [2020-12-22 13:16:13,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:16:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:16:15,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 5203 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 13:16:15,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:16:15,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:16:15,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 13:16:15,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-12-22 13:16:15,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250763996] [2020-12-22 13:16:15,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 13:16:15,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:16:15,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 13:16:15,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 13:16:15,832 INFO L87 Difference]: Start difference. First operand 6997 states and 9255 transitions. Second operand 8 states. [2020-12-22 13:16:16,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:16:16,200 INFO L93 Difference]: Finished difference Result 13871 states and 18381 transitions. [2020-12-22 13:16:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 13:16:16,205 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-12-22 13:16:16,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:16:16,248 INFO L225 Difference]: With dead ends: 13871 [2020-12-22 13:16:16,249 INFO L226 Difference]: Without dead ends: 7006 [2020-12-22 13:16:16,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 13:16:16,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7006 states. [2020-12-22 13:16:16,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7006 to 7006. [2020-12-22 13:16:16,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7006 states. [2020-12-22 13:16:16,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7006 states to 7006 states and 9264 transitions. [2020-12-22 13:16:16,545 INFO L78 Accepts]: Start accepts. Automaton has 7006 states and 9264 transitions. Word has length 58 [2020-12-22 13:16:16,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:16:16,545 INFO L481 AbstractCegarLoop]: Abstraction has 7006 states and 9264 transitions. [2020-12-22 13:16:16,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 13:16:16,549 INFO L276 IsEmpty]: Start isEmpty. Operand 7006 states and 9264 transitions. [2020-12-22 13:16:16,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-22 13:16:16,551 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:16:16,551 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:16:16,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:16:16,765 INFO L429 AbstractCegarLoop]: === Iteration 6 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, 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 13:16:16,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:16:16,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1930866970, now seen corresponding path program 2 times [2020-12-22 13:16:16,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:16:16,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747918229] [2020-12-22 13:16:16,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:16:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:16:17,424 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:16:17,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747918229] [2020-12-22 13:16:17,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807275724] [2020-12-22 13:16:17,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:16:20,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 13:16:20,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 13:16:20,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 5191 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-22 13:16:20,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:16:20,278 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 13:16:20,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 13:16:20,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2020-12-22 13:16:20,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239821924] [2020-12-22 13:16:20,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:16:20,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:16:20,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:16:20,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-12-22 13:16:20,281 INFO L87 Difference]: Start difference. First operand 7006 states and 9264 transitions. Second operand 4 states. [2020-12-22 13:16:21,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:16:21,203 INFO L93 Difference]: Finished difference Result 7024 states and 9278 transitions. [2020-12-22 13:16:21,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 13:16:21,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-12-22 13:16:21,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:16:21,263 INFO L225 Difference]: With dead ends: 7024 [2020-12-22 13:16:21,263 INFO L226 Difference]: Without dead ends: 7022 [2020-12-22 13:16:21,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-12-22 13:16:21,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7022 states. [2020-12-22 13:16:21,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7022 to 7004. [2020-12-22 13:16:21,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7004 states. [2020-12-22 13:16:21,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7004 states to 7004 states and 9262 transitions. [2020-12-22 13:16:21,610 INFO L78 Accepts]: Start accepts. Automaton has 7004 states and 9262 transitions. Word has length 59 [2020-12-22 13:16:21,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:16:21,610 INFO L481 AbstractCegarLoop]: Abstraction has 7004 states and 9262 transitions. [2020-12-22 13:16:21,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:16:21,611 INFO L276 IsEmpty]: Start isEmpty. Operand 7004 states and 9262 transitions. [2020-12-22 13:16:21,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-22 13:16:21,613 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:16:21,613 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:16:21,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:16:21,828 INFO L429 AbstractCegarLoop]: === Iteration 7 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, 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 13:16:21,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:16:21,829 INFO L82 PathProgramCache]: Analyzing trace with hash -272661742, now seen corresponding path program 1 times [2020-12-22 13:16:21,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:16:21,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498305306] [2020-12-22 13:16:21,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:16:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:16:22,292 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 13:16:22,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498305306] [2020-12-22 13:16:22,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:16:22,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:16:22,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068267856] [2020-12-22 13:16:22,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:16:22,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:16:22,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:16:22,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:16:22,294 INFO L87 Difference]: Start difference. First operand 7004 states and 9262 transitions. Second operand 3 states. [2020-12-22 13:16:22,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:16:22,612 INFO L93 Difference]: Finished difference Result 7004 states and 9262 transitions. [2020-12-22 13:16:22,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:16:22,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-12-22 13:16:22,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:16:22,637 INFO L225 Difference]: With dead ends: 7004 [2020-12-22 13:16:22,637 INFO L226 Difference]: Without dead ends: 7002 [2020-12-22 13:16:22,641 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 13:16:22,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7002 states. [2020-12-22 13:16:22,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7002 to 7002. [2020-12-22 13:16:22,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7002 states. [2020-12-22 13:16:22,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 9260 transitions. [2020-12-22 13:16:22,948 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 9260 transitions. Word has length 60 [2020-12-22 13:16:22,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:16:22,950 INFO L481 AbstractCegarLoop]: Abstraction has 7002 states and 9260 transitions. [2020-12-22 13:16:22,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:16:22,950 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 9260 transitions. [2020-12-22 13:16:22,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-22 13:16:22,953 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:16:22,953 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:16:22,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 13:16:22,954 INFO L429 AbstractCegarLoop]: === Iteration 8 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, 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 13:16:22,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:16:22,955 INFO L82 PathProgramCache]: Analyzing trace with hash 137424932, now seen corresponding path program 1 times [2020-12-22 13:16:22,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:16:22,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288810123] [2020-12-22 13:16:22,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:16:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:16:23,419 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 13:16:23,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288810123] [2020-12-22 13:16:23,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:16:23,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:16:23,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134806250] [2020-12-22 13:16:23,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:16:23,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:16:23,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:16:23,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:16:23,421 INFO L87 Difference]: Start difference. First operand 7002 states and 9260 transitions. Second operand 3 states. [2020-12-22 13:16:23,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:16:23,963 INFO L93 Difference]: Finished difference Result 20649 states and 27641 transitions. [2020-12-22 13:16:23,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:16:23,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-12-22 13:16:23,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:16:24,011 INFO L225 Difference]: With dead ends: 20649 [2020-12-22 13:16:24,011 INFO L226 Difference]: Without dead ends: 13781 [2020-12-22 13:16:24,032 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 13:16:24,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13781 states. [2020-12-22 13:16:24,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13781 to 13606. [2020-12-22 13:16:24,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13606 states. [2020-12-22 13:16:24,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13606 states to 13606 states and 18172 transitions. [2020-12-22 13:16:24,712 INFO L78 Accepts]: Start accepts. Automaton has 13606 states and 18172 transitions. Word has length 61 [2020-12-22 13:16:24,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:16:24,712 INFO L481 AbstractCegarLoop]: Abstraction has 13606 states and 18172 transitions. [2020-12-22 13:16:24,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:16:24,712 INFO L276 IsEmpty]: Start isEmpty. Operand 13606 states and 18172 transitions. [2020-12-22 13:16:24,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-22 13:16:24,715 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:16:24,715 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:16:24,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 13:16:24,716 INFO L429 AbstractCegarLoop]: === Iteration 9 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, 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 13:16:24,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:16:24,717 INFO L82 PathProgramCache]: Analyzing trace with hash -34790052, now seen corresponding path program 1 times [2020-12-22 13:16:24,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:16:24,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767483434] [2020-12-22 13:16:24,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:16:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:16:25,205 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 13:16:25,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767483434] [2020-12-22 13:16:25,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:16:25,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:16:25,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203624580] [2020-12-22 13:16:25,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:16:25,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:16:25,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:16:25,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:16:25,208 INFO L87 Difference]: Start difference. First operand 13606 states and 18172 transitions. Second operand 3 states. [2020-12-22 13:16:25,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:16:25,793 INFO L93 Difference]: Finished difference Result 13606 states and 18172 transitions. [2020-12-22 13:16:25,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:16:25,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-12-22 13:16:25,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:16:25,839 INFO L225 Difference]: With dead ends: 13606 [2020-12-22 13:16:25,839 INFO L226 Difference]: Without dead ends: 13595 [2020-12-22 13:16:25,845 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 13:16:25,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13595 states. [2020-12-22 13:16:26,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13595 to 13595. [2020-12-22 13:16:26,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13595 states. [2020-12-22 13:16:26,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13595 states to 13595 states and 18157 transitions. [2020-12-22 13:16:26,488 INFO L78 Accepts]: Start accepts. Automaton has 13595 states and 18157 transitions. Word has length 62 [2020-12-22 13:16:26,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:16:26,488 INFO L481 AbstractCegarLoop]: Abstraction has 13595 states and 18157 transitions. [2020-12-22 13:16:26,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:16:26,488 INFO L276 IsEmpty]: Start isEmpty. Operand 13595 states and 18157 transitions. [2020-12-22 13:16:26,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 13:16:26,498 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:16:26,499 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:16:26,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 13:16:26,499 INFO L429 AbstractCegarLoop]: === Iteration 10 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, 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 13:16:26,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:16:26,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1193574339, now seen corresponding path program 1 times [2020-12-22 13:16:26,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:16:26,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284541805] [2020-12-22 13:16:26,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:16:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:16:26,922 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 13:16:26,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284541805] [2020-12-22 13:16:26,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:16:26,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:16:26,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028618053] [2020-12-22 13:16:26,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:16:26,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:16:26,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:16:26,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:16:26,925 INFO L87 Difference]: Start difference. First operand 13595 states and 18157 transitions. Second operand 3 states. [2020-12-22 13:16:28,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:16:28,271 INFO L93 Difference]: Finished difference Result 39767 states and 53198 transitions. [2020-12-22 13:16:28,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:16:28,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-12-22 13:16:28,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:16:28,391 INFO L225 Difference]: With dead ends: 39767 [2020-12-22 13:16:28,391 INFO L226 Difference]: Without dead ends: 26306 [2020-12-22 13:16:28,437 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 13:16:28,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26306 states. [2020-12-22 13:16:29,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26306 to 26263. [2020-12-22 13:16:29,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26263 states. [2020-12-22 13:16:29,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26263 states to 26263 states and 35137 transitions. [2020-12-22 13:16:29,812 INFO L78 Accepts]: Start accepts. Automaton has 26263 states and 35137 transitions. Word has length 70 [2020-12-22 13:16:29,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:16:29,812 INFO L481 AbstractCegarLoop]: Abstraction has 26263 states and 35137 transitions. [2020-12-22 13:16:29,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:16:29,813 INFO L276 IsEmpty]: Start isEmpty. Operand 26263 states and 35137 transitions. [2020-12-22 13:16:29,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 13:16:29,830 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:16:29,830 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:16:29,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 13:16:29,831 INFO L429 AbstractCegarLoop]: === Iteration 11 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, 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 13:16:29,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:16:29,831 INFO L82 PathProgramCache]: Analyzing trace with hash -442913967, now seen corresponding path program 1 times [2020-12-22 13:16:29,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:16:29,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937229047] [2020-12-22 13:16:29,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:16:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:16:30,479 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 13:16:30,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937229047] [2020-12-22 13:16:30,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:16:30,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:16:30,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996336776] [2020-12-22 13:16:30,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:16:30,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:16:30,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:16:30,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:16:30,482 INFO L87 Difference]: Start difference. First operand 26263 states and 35137 transitions. Second operand 3 states. [2020-12-22 13:16:32,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:16:32,612 INFO L93 Difference]: Finished difference Result 66560 states and 89808 transitions. [2020-12-22 13:16:32,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:16:32,614 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-12-22 13:16:32,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:16:32,780 INFO L225 Difference]: With dead ends: 66560 [2020-12-22 13:16:32,780 INFO L226 Difference]: Without dead ends: 40431 [2020-12-22 13:16:32,851 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 13:16:32,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40431 states. [2020-12-22 13:16:34,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40431 to 40347. [2020-12-22 13:16:34,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40347 states. [2020-12-22 13:16:35,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40347 states to 40347 states and 54712 transitions. [2020-12-22 13:16:35,073 INFO L78 Accepts]: Start accepts. Automaton has 40347 states and 54712 transitions. Word has length 99 [2020-12-22 13:16:35,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:16:35,073 INFO L481 AbstractCegarLoop]: Abstraction has 40347 states and 54712 transitions. [2020-12-22 13:16:35,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:16:35,074 INFO L276 IsEmpty]: Start isEmpty. Operand 40347 states and 54712 transitions. [2020-12-22 13:16:35,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 13:16:35,091 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:16:35,091 INFO L422 BasicCegarLoop]: trace histogram [3, 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 13:16:35,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 13:16:35,092 INFO L429 AbstractCegarLoop]: === Iteration 12 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, 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 13:16:35,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:16:35,092 INFO L82 PathProgramCache]: Analyzing trace with hash 891692163, now seen corresponding path program 1 times [2020-12-22 13:16:35,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:16:35,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926031896] [2020-12-22 13:16:35,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:16:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:16:35,508 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 13:16:35,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926031896] [2020-12-22 13:16:35,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:16:35,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:16:35,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460328656] [2020-12-22 13:16:35,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:16:35,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:16:35,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:16:35,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:16:35,511 INFO L87 Difference]: Start difference. First operand 40347 states and 54712 transitions. Second operand 4 states. [2020-12-22 13:16:39,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:16:39,903 INFO L93 Difference]: Finished difference Result 80618 states and 109360 transitions. [2020-12-22 13:16:39,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 13:16:39,905 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2020-12-22 13:16:39,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:16:40,061 INFO L225 Difference]: With dead ends: 80618 [2020-12-22 13:16:40,061 INFO L226 Difference]: Without dead ends: 40393 [2020-12-22 13:16:40,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:16:40,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40393 states. [2020-12-22 13:16:42,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40393 to 40356. [2020-12-22 13:16:42,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40356 states. [2020-12-22 13:16:42,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40356 states to 40356 states and 54717 transitions. [2020-12-22 13:16:42,500 INFO L78 Accepts]: Start accepts. Automaton has 40356 states and 54717 transitions. Word has length 98 [2020-12-22 13:16:42,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:16:42,501 INFO L481 AbstractCegarLoop]: Abstraction has 40356 states and 54717 transitions. [2020-12-22 13:16:42,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:16:42,501 INFO L276 IsEmpty]: Start isEmpty. Operand 40356 states and 54717 transitions. [2020-12-22 13:16:42,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-22 13:16:42,513 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:16:42,514 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:16:42,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 13:16:42,514 INFO L429 AbstractCegarLoop]: === Iteration 13 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, 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 13:16:42,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:16:42,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1818691005, now seen corresponding path program 1 times [2020-12-22 13:16:42,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:16:42,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040464675] [2020-12-22 13:16:42,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:16:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:16:42,952 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 13:16:42,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040464675] [2020-12-22 13:16:42,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:16:42,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:16:42,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821541785] [2020-12-22 13:16:42,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:16:42,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:16:42,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:16:42,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:16:42,958 INFO L87 Difference]: Start difference. First operand 40356 states and 54717 transitions. Second operand 3 states. [2020-12-22 13:16:45,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:16:45,870 INFO L93 Difference]: Finished difference Result 102772 states and 138387 transitions. [2020-12-22 13:16:45,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:16:45,871 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-12-22 13:16:45,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:16:46,190 INFO L225 Difference]: With dead ends: 102772 [2020-12-22 13:16:46,193 INFO L226 Difference]: Without dead ends: 62550 [2020-12-22 13:16:46,314 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 13:16:46,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62550 states. [2020-12-22 13:16:49,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62550 to 62376. [2020-12-22 13:16:49,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62376 states. [2020-12-22 13:16:49,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62376 states to 62376 states and 83597 transitions. [2020-12-22 13:16:49,238 INFO L78 Accepts]: Start accepts. Automaton has 62376 states and 83597 transitions. Word has length 102 [2020-12-22 13:16:49,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:16:49,239 INFO L481 AbstractCegarLoop]: Abstraction has 62376 states and 83597 transitions. [2020-12-22 13:16:49,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:16:49,239 INFO L276 IsEmpty]: Start isEmpty. Operand 62376 states and 83597 transitions. [2020-12-22 13:16:49,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-22 13:16:49,253 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:16:49,253 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-12-22 13:16:49,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 13:16:49,254 INFO L429 AbstractCegarLoop]: === Iteration 14 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, 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 13:16:49,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:16:49,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1409882979, now seen corresponding path program 1 times [2020-12-22 13:16:49,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:16:49,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178261468] [2020-12-22 13:16:49,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:16:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:16:50,182 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 13:16:50,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178261468] [2020-12-22 13:16:50,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:16:50,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:16:50,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992713320] [2020-12-22 13:16:50,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:16:50,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:16:50,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:16:50,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:16:50,185 INFO L87 Difference]: Start difference. First operand 62376 states and 83597 transitions. Second operand 3 states. [2020-12-22 13:16:55,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:16:55,241 INFO L93 Difference]: Finished difference Result 153530 states and 205959 transitions. [2020-12-22 13:16:55,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:16:55,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-12-22 13:16:55,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:16:55,529 INFO L225 Difference]: With dead ends: 153530 [2020-12-22 13:16:55,529 INFO L226 Difference]: Without dead ends: 91288 [2020-12-22 13:16:55,679 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 13:16:56,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91288 states.