/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:20:14,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:20:14,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:20:14,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:20:14,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:20:14,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:20:14,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:20:14,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:20:14,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:20:14,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:20:14,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:20:14,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:20:14,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:20:14,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:20:14,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:20:14,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:20:14,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:20:14,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:20:14,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:20:14,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:20:14,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:20:14,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:20:14,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:20:14,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:20:14,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 13:20:14,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 13:20:14,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 13:20:14,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 13:20:14,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 13:20:14,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-07-07 13:20:14,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:20:14,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:20:14,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:20:14,398 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:20:14,412 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:20:14,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:20:14,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:20:14,415 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:20:14,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:20:14,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:20:14,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:20:14,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:20:14,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:20:14,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:20:14,417 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:20:14,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:20:14,418 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:20:14,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:20:14,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:20:14,419 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:20:14,419 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:20:14,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:20:14,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:20:14,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:20:14,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:20:14,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:20:14,420 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:20:14,688 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:20:14,702 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:20:14,706 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:20:14,707 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:20:14,707 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:20:14,708 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-07-07 13:20:14,805 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bb3a955b/6578f5a4c4eb434b8a969d1b00fcc387/FLAGe211e0fb3 [2020-07-07 13:20:15,357 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:20:15,358 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-07-07 13:20:15,384 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bb3a955b/6578f5a4c4eb434b8a969d1b00fcc387/FLAGe211e0fb3 [2020-07-07 13:20:15,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bb3a955b/6578f5a4c4eb434b8a969d1b00fcc387 [2020-07-07 13:20:15,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:20:15,687 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:20:15,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:20:15,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:20:15,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:20:15,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:20:15" (1/1) ... [2020-07-07 13:20:15,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a0b8ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:15, skipping insertion in model container [2020-07-07 13:20:15,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:20:15" (1/1) ... [2020-07-07 13:20:15,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:20:15,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:20:16,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:20:16,072 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:20:16,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:20:16,315 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:20:16,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:16 WrapperNode [2020-07-07 13:20:16,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:20:16,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:20:16,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:20:16,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:20:16,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:16" (1/1) ... [2020-07-07 13:20:16,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:16" (1/1) ... [2020-07-07 13:20:16,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:16" (1/1) ... [2020-07-07 13:20:16,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:16" (1/1) ... [2020-07-07 13:20:16,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:16" (1/1) ... [2020-07-07 13:20:16,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:16" (1/1) ... [2020-07-07 13:20:16,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:16" (1/1) ... [2020-07-07 13:20:16,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:20:16,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:20:16,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:20:16,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:20:16,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:16" (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 [2020-07-07 13:20:16,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:20:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:20:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-07-07 13:20:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-07-07 13:20:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-07-07 13:20:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:20:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-07-07 13:20:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-07-07 13:20:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-07-07 13:20:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-07-07 13:20:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-07-07 13:20:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-07-07 13:20:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-07-07 13:20:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-07-07 13:20:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-07-07 13:20:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-07-07 13:20:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-07-07 13:20:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-07-07 13:20:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:20:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-07 13:20:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:20:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-07 13:20:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-07-07 13:20:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-07-07 13:20:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-07-07 13:20:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-07-07 13:20:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-07-07 13:20:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-07-07 13:20:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-07-07 13:20:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-07-07 13:20:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-07-07 13:20:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-07-07 13:20:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-07-07 13:20:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-07-07 13:20:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-07-07 13:20:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-07-07 13:20:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:20:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-07-07 13:20:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:20:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:20:16,741 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 13:20:16,829 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-07-07 13:20:16,830 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-07-07 13:20:16,899 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 13:20:17,066 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-07-07 13:20:17,067 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-07-07 13:20:17,068 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 13:20:17,143 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-07-07 13:20:17,144 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-07-07 13:20:17,167 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 13:20:17,276 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-07-07 13:20:17,277 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-07-07 13:20:17,558 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 13:20:17,589 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-07-07 13:20:17,590 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-07-07 13:20:17,652 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 13:20:17,813 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-07-07 13:20:17,813 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-07-07 13:20:17,848 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:20:17,849 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 13:20:17,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:20:17 BoogieIcfgContainer [2020-07-07 13:20:17,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:20:17,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:20:17,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:20:17,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:20:17,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:20:15" (1/3) ... [2020-07-07 13:20:17,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e915076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:20:17, skipping insertion in model container [2020-07-07 13:20:17,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:16" (2/3) ... [2020-07-07 13:20:17,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e915076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:20:17, skipping insertion in model container [2020-07-07 13:20:17,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:20:17" (3/3) ... [2020-07-07 13:20:17,878 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-07-07 13:20:17,890 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:20:17,907 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:20:17,922 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:20:17,945 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:20:17,945 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:20:17,945 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:20:17,945 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:20:17,946 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:20:17,946 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:20:17,946 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:20:17,946 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:20:17,971 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states. [2020-07-07 13:20:17,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-07-07 13:20:17,991 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:17,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:20:17,993 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:18,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:18,000 INFO L82 PathProgramCache]: Analyzing trace with hash 738723625, now seen corresponding path program 1 times [2020-07-07 13:20:18,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:18,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720523861] [2020-07-07 13:20:18,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:18,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:18,505 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:18,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720523861] [2020-07-07 13:20:18,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:18,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:20:18,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906681922] [2020-07-07 13:20:18,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:20:18,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:18,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:20:18,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:20:18,536 INFO L87 Difference]: Start difference. First operand 667 states. Second operand 5 states. [2020-07-07 13:20:20,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:20,676 INFO L93 Difference]: Finished difference Result 1037 states and 1248 transitions. [2020-07-07 13:20:20,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 13:20:20,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2020-07-07 13:20:20,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:20,703 INFO L225 Difference]: With dead ends: 1037 [2020-07-07 13:20:20,703 INFO L226 Difference]: Without dead ends: 709 [2020-07-07 13:20:20,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:20:20,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2020-07-07 13:20:20,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 655. [2020-07-07 13:20:20,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2020-07-07 13:20:20,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 750 transitions. [2020-07-07 13:20:20,884 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 750 transitions. Word has length 85 [2020-07-07 13:20:20,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:20,885 INFO L479 AbstractCegarLoop]: Abstraction has 655 states and 750 transitions. [2020-07-07 13:20:20,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:20:20,885 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 750 transitions. [2020-07-07 13:20:20,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-07 13:20:20,891 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:20,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:20:20,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:20:20,892 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:20,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:20,893 INFO L82 PathProgramCache]: Analyzing trace with hash -242240865, now seen corresponding path program 1 times [2020-07-07 13:20:20,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:20,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62476372] [2020-07-07 13:20:20,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:21,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:21,239 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:21,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62476372] [2020-07-07 13:20:21,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:21,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:20:21,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182689845] [2020-07-07 13:20:21,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:20:21,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:21,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:20:21,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:20:21,242 INFO L87 Difference]: Start difference. First operand 655 states and 750 transitions. Second operand 6 states. [2020-07-07 13:20:23,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:23,217 INFO L93 Difference]: Finished difference Result 976 states and 1131 transitions. [2020-07-07 13:20:23,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 13:20:23,220 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-07-07 13:20:23,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:23,235 INFO L225 Difference]: With dead ends: 976 [2020-07-07 13:20:23,235 INFO L226 Difference]: Without dead ends: 885 [2020-07-07 13:20:23,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-07-07 13:20:23,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2020-07-07 13:20:23,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 806. [2020-07-07 13:20:23,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 806 states. [2020-07-07 13:20:23,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 917 transitions. [2020-07-07 13:20:23,365 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 917 transitions. Word has length 136 [2020-07-07 13:20:23,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:23,366 INFO L479 AbstractCegarLoop]: Abstraction has 806 states and 917 transitions. [2020-07-07 13:20:23,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:20:23,366 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 917 transitions. [2020-07-07 13:20:23,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-07-07 13:20:23,370 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:23,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:20:23,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:20:23,371 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:23,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:23,372 INFO L82 PathProgramCache]: Analyzing trace with hash 864276638, now seen corresponding path program 1 times [2020-07-07 13:20:23,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:23,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159109905] [2020-07-07 13:20:23,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:23,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:23,741 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:23,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159109905] [2020-07-07 13:20:23,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:23,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 13:20:23,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225748260] [2020-07-07 13:20:23,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 13:20:23,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:23,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 13:20:23,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:20:23,744 INFO L87 Difference]: Start difference. First operand 806 states and 917 transitions. Second operand 7 states. [2020-07-07 13:20:26,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:26,156 INFO L93 Difference]: Finished difference Result 1133 states and 1293 transitions. [2020-07-07 13:20:26,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-07 13:20:26,157 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 158 [2020-07-07 13:20:26,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:26,168 INFO L225 Difference]: With dead ends: 1133 [2020-07-07 13:20:26,169 INFO L226 Difference]: Without dead ends: 907 [2020-07-07 13:20:26,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-07-07 13:20:26,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-07-07 13:20:26,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 881. [2020-07-07 13:20:26,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-07-07 13:20:26,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1003 transitions. [2020-07-07 13:20:26,327 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1003 transitions. Word has length 158 [2020-07-07 13:20:26,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:26,328 INFO L479 AbstractCegarLoop]: Abstraction has 881 states and 1003 transitions. [2020-07-07 13:20:26,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 13:20:26,329 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1003 transitions. [2020-07-07 13:20:26,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-07-07 13:20:26,333 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:26,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:20:26,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:20:26,334 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:26,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:26,334 INFO L82 PathProgramCache]: Analyzing trace with hash 153469469, now seen corresponding path program 1 times [2020-07-07 13:20:26,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:26,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101999844] [2020-07-07 13:20:26,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:26,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:26,606 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:26,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101999844] [2020-07-07 13:20:26,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:26,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:20:26,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765311453] [2020-07-07 13:20:26,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:20:26,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:26,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:20:26,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:20:26,611 INFO L87 Difference]: Start difference. First operand 881 states and 1003 transitions. Second operand 6 states. [2020-07-07 13:20:28,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:28,385 INFO L93 Difference]: Finished difference Result 885 states and 1006 transitions. [2020-07-07 13:20:28,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 13:20:28,389 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-07-07 13:20:28,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:28,397 INFO L225 Difference]: With dead ends: 885 [2020-07-07 13:20:28,398 INFO L226 Difference]: Without dead ends: 881 [2020-07-07 13:20:28,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:20:28,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2020-07-07 13:20:28,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 880. [2020-07-07 13:20:28,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-07-07 13:20:28,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1000 transitions. [2020-07-07 13:20:28,488 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1000 transitions. Word has length 162 [2020-07-07 13:20:28,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:28,489 INFO L479 AbstractCegarLoop]: Abstraction has 880 states and 1000 transitions. [2020-07-07 13:20:28,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:20:28,489 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1000 transitions. [2020-07-07 13:20:28,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-07-07 13:20:28,494 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:28,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:20:28,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:20:28,495 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:28,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:28,496 INFO L82 PathProgramCache]: Analyzing trace with hash 198218449, now seen corresponding path program 1 times [2020-07-07 13:20:28,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:28,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360245106] [2020-07-07 13:20:28,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:28,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:28,905 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:28,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360245106] [2020-07-07 13:20:28,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:28,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 13:20:28,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859357154] [2020-07-07 13:20:28,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 13:20:28,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:28,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 13:20:28,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-07-07 13:20:28,908 INFO L87 Difference]: Start difference. First operand 880 states and 1000 transitions. Second operand 9 states. [2020-07-07 13:20:30,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:30,608 INFO L93 Difference]: Finished difference Result 892 states and 1015 transitions. [2020-07-07 13:20:30,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 13:20:30,616 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 192 [2020-07-07 13:20:30,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:30,622 INFO L225 Difference]: With dead ends: 892 [2020-07-07 13:20:30,623 INFO L226 Difference]: Without dead ends: 876 [2020-07-07 13:20:30,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2020-07-07 13:20:30,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2020-07-07 13:20:30,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 821. [2020-07-07 13:20:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2020-07-07 13:20:30,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 936 transitions. [2020-07-07 13:20:30,733 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 936 transitions. Word has length 192 [2020-07-07 13:20:30,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:30,734 INFO L479 AbstractCegarLoop]: Abstraction has 821 states and 936 transitions. [2020-07-07 13:20:30,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 13:20:30,734 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 936 transitions. [2020-07-07 13:20:30,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-07-07 13:20:30,738 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:30,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:20:30,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 13:20:30,739 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:30,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:30,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1624237255, now seen corresponding path program 1 times [2020-07-07 13:20:30,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:30,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733963905] [2020-07-07 13:20:30,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:31,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:31,138 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:31,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733963905] [2020-07-07 13:20:31,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:31,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 13:20:31,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476930997] [2020-07-07 13:20:31,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 13:20:31,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:31,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 13:20:31,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-07-07 13:20:31,141 INFO L87 Difference]: Start difference. First operand 821 states and 936 transitions. Second operand 11 states. [2020-07-07 13:20:33,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:33,822 INFO L93 Difference]: Finished difference Result 944 states and 1075 transitions. [2020-07-07 13:20:33,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-07 13:20:33,823 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 188 [2020-07-07 13:20:33,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:33,830 INFO L225 Difference]: With dead ends: 944 [2020-07-07 13:20:33,831 INFO L226 Difference]: Without dead ends: 938 [2020-07-07 13:20:33,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-07-07 13:20:33,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2020-07-07 13:20:33,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 880. [2020-07-07 13:20:33,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-07-07 13:20:33,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 997 transitions. [2020-07-07 13:20:33,938 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 997 transitions. Word has length 188 [2020-07-07 13:20:33,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:33,939 INFO L479 AbstractCegarLoop]: Abstraction has 880 states and 997 transitions. [2020-07-07 13:20:33,939 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 13:20:33,939 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 997 transitions. [2020-07-07 13:20:33,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-07-07 13:20:33,943 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:33,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:20:33,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 13:20:33,944 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:33,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:33,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1657532014, now seen corresponding path program 1 times [2020-07-07 13:20:33,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:33,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [269122191] [2020-07-07 13:20:33,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:34,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:34,426 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:34,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [269122191] [2020-07-07 13:20:34,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:34,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-07-07 13:20:34,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169496858] [2020-07-07 13:20:34,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-07 13:20:34,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:34,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-07 13:20:34,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2020-07-07 13:20:34,430 INFO L87 Difference]: Start difference. First operand 880 states and 997 transitions. Second operand 15 states. [2020-07-07 13:20:38,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:38,632 INFO L93 Difference]: Finished difference Result 1002 states and 1127 transitions. [2020-07-07 13:20:38,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-07 13:20:38,633 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 194 [2020-07-07 13:20:38,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:38,639 INFO L225 Difference]: With dead ends: 1002 [2020-07-07 13:20:38,640 INFO L226 Difference]: Without dead ends: 928 [2020-07-07 13:20:38,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2020-07-07 13:20:38,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2020-07-07 13:20:38,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 823. [2020-07-07 13:20:38,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2020-07-07 13:20:38,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 931 transitions. [2020-07-07 13:20:38,802 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 931 transitions. Word has length 194 [2020-07-07 13:20:38,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:38,802 INFO L479 AbstractCegarLoop]: Abstraction has 823 states and 931 transitions. [2020-07-07 13:20:38,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-07 13:20:38,802 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 931 transitions. [2020-07-07 13:20:38,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-07 13:20:38,806 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:38,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:20:38,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 13:20:38,807 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:38,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:38,807 INFO L82 PathProgramCache]: Analyzing trace with hash -853263794, now seen corresponding path program 1 times [2020-07-07 13:20:38,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:38,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103606306] [2020-07-07 13:20:38,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:39,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:39,254 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:39,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103606306] [2020-07-07 13:20:39,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:39,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-07-07 13:20:39,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957394747] [2020-07-07 13:20:39,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-07 13:20:39,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:39,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-07 13:20:39,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-07-07 13:20:39,257 INFO L87 Difference]: Start difference. First operand 823 states and 931 transitions. Second operand 17 states. [2020-07-07 13:20:43,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:43,343 INFO L93 Difference]: Finished difference Result 845 states and 955 transitions. [2020-07-07 13:20:43,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-07 13:20:43,344 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 190 [2020-07-07 13:20:43,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:43,349 INFO L225 Difference]: With dead ends: 845 [2020-07-07 13:20:43,349 INFO L226 Difference]: Without dead ends: 828 [2020-07-07 13:20:43,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2020-07-07 13:20:43,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2020-07-07 13:20:43,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 819. [2020-07-07 13:20:43,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 819 states. [2020-07-07 13:20:43,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 925 transitions. [2020-07-07 13:20:43,456 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 925 transitions. Word has length 190 [2020-07-07 13:20:43,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:43,457 INFO L479 AbstractCegarLoop]: Abstraction has 819 states and 925 transitions. [2020-07-07 13:20:43,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-07 13:20:43,457 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 925 transitions. [2020-07-07 13:20:43,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-07-07 13:20:43,461 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:43,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:20:43,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 13:20:43,462 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:43,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:43,463 INFO L82 PathProgramCache]: Analyzing trace with hash -443732248, now seen corresponding path program 1 times [2020-07-07 13:20:43,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:43,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707139748] [2020-07-07 13:20:43,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:43,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:43,797 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:43,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707139748] [2020-07-07 13:20:43,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:43,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-07 13:20:43,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374277968] [2020-07-07 13:20:43,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-07 13:20:43,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:43,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-07 13:20:43,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-07-07 13:20:43,805 INFO L87 Difference]: Start difference. First operand 819 states and 925 transitions. Second operand 13 states. [2020-07-07 13:20:47,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:47,288 INFO L93 Difference]: Finished difference Result 841 states and 949 transitions. [2020-07-07 13:20:47,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-07 13:20:47,289 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 193 [2020-07-07 13:20:47,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:47,294 INFO L225 Difference]: With dead ends: 841 [2020-07-07 13:20:47,294 INFO L226 Difference]: Without dead ends: 744 [2020-07-07 13:20:47,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-07-07 13:20:47,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2020-07-07 13:20:47,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 735. [2020-07-07 13:20:47,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-07-07 13:20:47,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 831 transitions. [2020-07-07 13:20:47,394 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 831 transitions. Word has length 193 [2020-07-07 13:20:47,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:47,395 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 831 transitions. [2020-07-07 13:20:47,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-07 13:20:47,395 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 831 transitions. [2020-07-07 13:20:47,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-07 13:20:47,398 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:47,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:20:47,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 13:20:47,399 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:47,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:47,399 INFO L82 PathProgramCache]: Analyzing trace with hash -132300136, now seen corresponding path program 1 times [2020-07-07 13:20:47,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:47,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1405615605] [2020-07-07 13:20:47,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:47,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:47,829 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:47,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1405615605] [2020-07-07 13:20:47,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:47,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-07-07 13:20:47,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922055103] [2020-07-07 13:20:47,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-07 13:20:47,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:47,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-07 13:20:47,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-07-07 13:20:47,831 INFO L87 Difference]: Start difference. First operand 735 states and 831 transitions. Second operand 17 states. [2020-07-07 13:20:51,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:51,180 INFO L93 Difference]: Finished difference Result 757 states and 855 transitions. [2020-07-07 13:20:51,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-07 13:20:51,181 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 195 [2020-07-07 13:20:51,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:51,184 INFO L225 Difference]: With dead ends: 757 [2020-07-07 13:20:51,184 INFO L226 Difference]: Without dead ends: 714 [2020-07-07 13:20:51,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2020-07-07 13:20:51,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2020-07-07 13:20:51,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 705. [2020-07-07 13:20:51,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2020-07-07 13:20:51,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 796 transitions. [2020-07-07 13:20:51,283 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 796 transitions. Word has length 195 [2020-07-07 13:20:51,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:51,284 INFO L479 AbstractCegarLoop]: Abstraction has 705 states and 796 transitions. [2020-07-07 13:20:51,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-07 13:20:51,284 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 796 transitions. [2020-07-07 13:20:51,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-07-07 13:20:51,287 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:51,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:20:51,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 13:20:51,288 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:51,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:51,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1742770590, now seen corresponding path program 1 times [2020-07-07 13:20:51,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:51,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765001895] [2020-07-07 13:20:51,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:51,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:51,532 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:51,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765001895] [2020-07-07 13:20:51,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:51,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 13:20:51,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977345449] [2020-07-07 13:20:51,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 13:20:51,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:51,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 13:20:51,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-07 13:20:51,534 INFO L87 Difference]: Start difference. First operand 705 states and 796 transitions. Second operand 8 states. [2020-07-07 13:20:53,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:53,333 INFO L93 Difference]: Finished difference Result 760 states and 853 transitions. [2020-07-07 13:20:53,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 13:20:53,333 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 197 [2020-07-07 13:20:53,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:53,338 INFO L225 Difference]: With dead ends: 760 [2020-07-07 13:20:53,338 INFO L226 Difference]: Without dead ends: 652 [2020-07-07 13:20:53,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-07-07 13:20:53,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2020-07-07 13:20:53,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 624. [2020-07-07 13:20:53,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2020-07-07 13:20:53,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 698 transitions. [2020-07-07 13:20:53,426 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 698 transitions. Word has length 197 [2020-07-07 13:20:53,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:53,427 INFO L479 AbstractCegarLoop]: Abstraction has 624 states and 698 transitions. [2020-07-07 13:20:53,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 13:20:53,427 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 698 transitions. [2020-07-07 13:20:53,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-07 13:20:53,430 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:53,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:20:53,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 13:20:53,431 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:53,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:53,431 INFO L82 PathProgramCache]: Analyzing trace with hash -759676943, now seen corresponding path program 1 times [2020-07-07 13:20:53,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:53,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360130971] [2020-07-07 13:20:53,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:53,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:53,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:53,710 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:53,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360130971] [2020-07-07 13:20:53,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:53,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-07 13:20:53,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571229499] [2020-07-07 13:20:53,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 13:20:53,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:53,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 13:20:53,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-07-07 13:20:53,712 INFO L87 Difference]: Start difference. First operand 624 states and 698 transitions. Second operand 14 states. [2020-07-07 13:20:55,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:55,767 INFO L93 Difference]: Finished difference Result 652 states and 728 transitions. [2020-07-07 13:20:55,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-07 13:20:55,768 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 204 [2020-07-07 13:20:55,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:55,771 INFO L225 Difference]: With dead ends: 652 [2020-07-07 13:20:55,772 INFO L226 Difference]: Without dead ends: 620 [2020-07-07 13:20:55,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2020-07-07 13:20:55,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2020-07-07 13:20:55,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 611. [2020-07-07 13:20:55,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-07-07 13:20:55,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 683 transitions. [2020-07-07 13:20:55,855 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 683 transitions. Word has length 204 [2020-07-07 13:20:55,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:55,855 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 683 transitions. [2020-07-07 13:20:55,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 13:20:55,855 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 683 transitions. [2020-07-07 13:20:55,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-07-07 13:20:55,857 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:55,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:20:55,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-07 13:20:55,858 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:55,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:55,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1349540408, now seen corresponding path program 1 times [2020-07-07 13:20:55,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:55,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1241757027] [2020-07-07 13:20:55,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:56,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:56,164 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:56,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1241757027] [2020-07-07 13:20:56,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:56,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-07 13:20:56,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468178313] [2020-07-07 13:20:56,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-07 13:20:56,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:56,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-07 13:20:56,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-07-07 13:20:56,166 INFO L87 Difference]: Start difference. First operand 611 states and 683 transitions. Second operand 13 states. [2020-07-07 13:20:58,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:58,376 INFO L93 Difference]: Finished difference Result 932 states and 1052 transitions. [2020-07-07 13:20:58,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-07 13:20:58,378 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 205 [2020-07-07 13:20:58,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:58,381 INFO L225 Difference]: With dead ends: 932 [2020-07-07 13:20:58,381 INFO L226 Difference]: Without dead ends: 793 [2020-07-07 13:20:58,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=138, Invalid=564, Unknown=0, NotChecked=0, Total=702 [2020-07-07 13:20:58,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2020-07-07 13:20:58,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 625. [2020-07-07 13:20:58,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2020-07-07 13:20:58,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 701 transitions. [2020-07-07 13:20:58,477 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 701 transitions. Word has length 205 [2020-07-07 13:20:58,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:58,477 INFO L479 AbstractCegarLoop]: Abstraction has 625 states and 701 transitions. [2020-07-07 13:20:58,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-07 13:20:58,478 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 701 transitions. [2020-07-07 13:20:58,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-07-07 13:20:58,479 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:58,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:20:58,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-07 13:20:58,480 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:58,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:58,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1202059503, now seen corresponding path program 1 times [2020-07-07 13:20:58,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:58,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465402431] [2020-07-07 13:20:58,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:58,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:58,784 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:58,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465402431] [2020-07-07 13:20:58,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:58,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-07 13:20:58,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099576562] [2020-07-07 13:20:58,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 13:20:58,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:58,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 13:20:58,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-07-07 13:20:58,787 INFO L87 Difference]: Start difference. First operand 625 states and 701 transitions. Second operand 14 states. [2020-07-07 13:21:00,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:00,986 INFO L93 Difference]: Finished difference Result 653 states and 731 transitions. [2020-07-07 13:21:00,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-07 13:21:00,993 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 205 [2020-07-07 13:21:00,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:00,996 INFO L225 Difference]: With dead ends: 653 [2020-07-07 13:21:00,996 INFO L226 Difference]: Without dead ends: 604 [2020-07-07 13:21:00,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2020-07-07 13:21:00,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-07-07 13:21:01,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 595. [2020-07-07 13:21:01,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2020-07-07 13:21:01,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 650 transitions. [2020-07-07 13:21:01,085 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 650 transitions. Word has length 205 [2020-07-07 13:21:01,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:01,085 INFO L479 AbstractCegarLoop]: Abstraction has 595 states and 650 transitions. [2020-07-07 13:21:01,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 13:21:01,085 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 650 transitions. [2020-07-07 13:21:01,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-07 13:21:01,089 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:01,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:01,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-07 13:21:01,090 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:01,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:01,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1820990330, now seen corresponding path program 1 times [2020-07-07 13:21:01,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:01,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629703880] [2020-07-07 13:21:01,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:01,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:01,347 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:01,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629703880] [2020-07-07 13:21:01,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:01,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 13:21:01,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078955371] [2020-07-07 13:21:01,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 13:21:01,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:01,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 13:21:01,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-07 13:21:01,350 INFO L87 Difference]: Start difference. First operand 595 states and 650 transitions. Second operand 8 states. [2020-07-07 13:21:02,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:02,580 INFO L93 Difference]: Finished difference Result 718 states and 790 transitions. [2020-07-07 13:21:02,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 13:21:02,581 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 213 [2020-07-07 13:21:02,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:02,584 INFO L225 Difference]: With dead ends: 718 [2020-07-07 13:21:02,584 INFO L226 Difference]: Without dead ends: 622 [2020-07-07 13:21:02,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-07 13:21:02,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2020-07-07 13:21:02,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 591. [2020-07-07 13:21:02,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-07-07 13:21:02,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 643 transitions. [2020-07-07 13:21:02,709 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 643 transitions. Word has length 213 [2020-07-07 13:21:02,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:02,709 INFO L479 AbstractCegarLoop]: Abstraction has 591 states and 643 transitions. [2020-07-07 13:21:02,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 13:21:02,710 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 643 transitions. [2020-07-07 13:21:02,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-07-07 13:21:02,713 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:02,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:02,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-07 13:21:02,713 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:02,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:02,714 INFO L82 PathProgramCache]: Analyzing trace with hash 468800160, now seen corresponding path program 1 times [2020-07-07 13:21:02,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:02,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654352943] [2020-07-07 13:21:02,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:21:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:21:02,891 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:02,892 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:21:02,892 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:21:02,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-07 13:21:02,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:21:02 BoogieIcfgContainer [2020-07-07 13:21:02,946 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:21:02,950 INFO L168 Benchmark]: Toolchain (without parser) took 47262.00 ms. Allocated memory was 138.9 MB in the beginning and 745.5 MB in the end (delta: 606.6 MB). Free memory was 103.4 MB in the beginning and 638.3 MB in the end (delta: -534.9 MB). Peak memory consumption was 71.7 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:02,953 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 138.9 MB. Free memory was 122.4 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 13:21:02,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.43 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 103.0 MB in the beginning and 177.1 MB in the end (delta: -74.2 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:02,963 INFO L168 Benchmark]: Boogie Preprocessor took 70.94 ms. Allocated memory is still 203.9 MB. Free memory was 177.1 MB in the beginning and 174.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:02,966 INFO L168 Benchmark]: RCFGBuilder took 1479.56 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 173.3 MB in the beginning and 190.3 MB in the end (delta: -17.0 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:02,968 INFO L168 Benchmark]: TraceAbstraction took 45076.60 ms. Allocated memory was 237.5 MB in the beginning and 745.5 MB in the end (delta: 508.0 MB). Free memory was 188.8 MB in the beginning and 638.3 MB in the end (delta: -449.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:02,974 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 138.9 MB. Free memory was 122.4 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 628.43 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 103.0 MB in the beginning and 177.1 MB in the end (delta: -74.2 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.94 ms. Allocated memory is still 203.9 MB. Free memory was 177.1 MB in the beginning and 174.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1479.56 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 173.3 MB in the beginning and 190.3 MB in the end (delta: -17.0 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 45076.60 ms. Allocated memory was 237.5 MB in the beginning and 745.5 MB in the end (delta: 508.0 MB). Free memory was 188.8 MB in the beginning and 638.3 MB in the end (delta: -449.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1011]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L21] int KernelMode ; [L22] int Executive ; [L23] int DevicePowerState ; [L24] int s ; [L25] int UNLOADED ; [L26] int NP ; [L27] int DC ; [L28] int SKIP1 ; [L29] int SKIP2 ; [L30] int MPR1 ; [L31] int MPR3 ; [L32] int IPC ; [L33] int pended ; [L34] int compFptr ; [L35] int compRegistered ; [L36] int lowerDriverReturn ; [L37] int setEventCalled ; [L38] int customIrp ; [L39] int myStatus ; [L292] int status ; [L293] int irp = __VERIFIER_nondet_int() ; [L294] int pirp ; [L295] int pirp__IoStatus__Status ; [L296] int irp_choice = __VERIFIER_nondet_int() ; [L297] int devobj = __VERIFIER_nondet_int() ; [L298] int __cil_tmp8 ; [L300] KernelMode = 0 [L301] Executive = 0 [L302] DevicePowerState = 1 [L303] s = 0 [L304] UNLOADED = 0 [L305] NP = 0 [L306] DC = 0 [L307] SKIP1 = 0 [L308] SKIP2 = 0 [L309] MPR1 = 0 [L310] MPR3 = 0 [L311] IPC = 0 [L312] pended = 0 [L313] compFptr = 0 [L314] compRegistered = 0 [L315] lowerDriverReturn = 0 [L316] setEventCalled = 0 [L317] customIrp = 0 [L318] myStatus = 0 [L322] status = 0 [L323] pirp = irp [L324] CALL _BLAST_init() [L59] UNLOADED = 0 [L60] NP = 1 [L61] DC = 2 [L62] SKIP1 = 3 [L63] SKIP2 = 4 [L64] MPR1 = 5 [L65] MPR3 = 6 [L66] IPC = 7 [L67] s = UNLOADED [L68] pended = 0 [L69] compFptr = 0 [L70] compRegistered = 0 [L71] lowerDriverReturn = 0 [L72] setEventCalled = 0 [L73] customIrp = 0 [L324] RET _BLAST_init() [L326] COND TRUE status >= 0 [L327] s = NP [L328] customIrp = 0 [L329] setEventCalled = customIrp [L330] lowerDriverReturn = setEventCalled [L331] compRegistered = lowerDriverReturn [L332] pended = compRegistered [L333] pirp__IoStatus__Status = 0 [L334] myStatus = 0 [L335] COND FALSE !(irp_choice == 0) [L340] CALL stub_driver_init() [L45] s = NP [L46] pended = 0 [L47] compFptr = 0 [L48] compRegistered = 0 [L49] lowerDriverReturn = 0 [L50] setEventCalled = 0 [L51] customIrp = 0 [L340] RET stub_driver_init() [L343] COND FALSE !(status < 0) [L347] int tmp_ndt_1; [L348] tmp_ndt_1 = __VERIFIER_nondet_int() [L349] COND FALSE !(tmp_ndt_1 == 0) [L352] int tmp_ndt_2; [L353] tmp_ndt_2 = __VERIFIER_nondet_int() [L354] COND FALSE !(tmp_ndt_2 == 1) [L357] int tmp_ndt_3; [L358] tmp_ndt_3 = __VERIFIER_nondet_int() [L359] COND TRUE tmp_ndt_3 == 3 [L386] CALL, EXPR KbFilter_PnP(devobj, pirp) [L78] int devExt ; [L79] int irpStack ; [L80] int status ; [L81] int event = __VERIFIER_nondet_int() ; [L82] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L83] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L84] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L85] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L86] int devExt__Started ; [L87] int devExt__Removed ; [L88] int devExt__SurpriseRemoved ; [L89] int Irp__IoStatus__Status ; [L90] int Irp__IoStatus__Information ; [L91] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L92] int irpSp ; [L93] int nextIrpSp ; [L94] int nextIrpSp__Control ; [L95] int irpSp___0 ; [L96] int irpSp__Context ; [L97] int irpSp__Control ; [L98] long __cil_tmp23 ; [L101] status = 0 [L102] devExt = DeviceObject__DeviceExtension [L103] irpStack = Irp__Tail__Overlay__CurrentStackLocation [L104] COND FALSE !(irpStack__MinorFunction == 0) [L107] COND FALSE !(irpStack__MinorFunction == 23) [L110] COND TRUE irpStack__MinorFunction == 2 [L234] devExt__Removed = 1 [L235] COND TRUE s == NP [L236] s = SKIP1 [L243] Irp__CurrentLocation ++ [L244] Irp__Tail__Overlay__CurrentStackLocation ++ [L245] CALL IofCallDriver(devExt__TopOfStack, Irp) [L481] int returnVal2 ; [L482] int compRetStatus ; [L483] int lcontext = __VERIFIER_nondet_int() ; [L484] long long __cil_tmp7 ; [L487] COND FALSE !(\read(compRegistered)) [L500] int tmp_ndt_6; [L501] tmp_ndt_6 = __VERIFIER_nondet_int() [L502] COND FALSE !(tmp_ndt_6 == 0) [L505] int tmp_ndt_7; [L506] tmp_ndt_7 = __VERIFIER_nondet_int() [L507] COND TRUE tmp_ndt_7 == 1 [L516] returnVal2 = -1073741823 [L526] COND FALSE !(s == NP) [L530] COND FALSE !(s == MPR1) [L539] COND TRUE s == SKIP1 [L540] s = SKIP2 [L541] lowerDriverReturn = returnVal2 [L549] return (returnVal2); [L245] RET IofCallDriver(devExt__TopOfStack, Irp) [L246] status = 0 [L288] return (status); [L386] RET, EXPR KbFilter_PnP(devobj, pirp) [L386] status = KbFilter_PnP(devobj, pirp) [L410] COND FALSE !(pended == 1) [L418] COND FALSE !(pended == 1) [L426] COND TRUE s != UNLOADED [L427] COND TRUE status != -1 [L428] COND FALSE !(s != SKIP2) [L438] COND FALSE !(pended == 1) [L445] COND FALSE !(s == DC) [L450] COND TRUE status != lowerDriverReturn [L451] CALL errorFn() [L1011] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 18 procedures, 667 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 44.9s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 37.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9562 SDtfs, 17169 SDslu, 18816 SDs, 0 SdLazy, 32584 SolverSat, 1395 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 373 GetRequests, 139 SyntacticMatches, 1 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=881occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 15 MinimizatonAttempts, 650 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...