/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 0.1.25-267fbe0 [2020-07-17 13:16:29,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 13:16:29,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 13:16:29,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 13:16:29,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 13:16:29,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 13:16:29,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 13:16:29,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 13:16:29,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 13:16:29,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 13:16:29,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 13:16:29,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 13:16:29,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 13:16:29,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 13:16:29,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 13:16:29,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 13:16:29,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 13:16:29,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 13:16:29,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 13:16:29,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 13:16:29,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 13:16:29,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 13:16:29,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 13:16:29,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 13:16:29,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 13:16:29,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 13:16:29,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 13:16:29,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 13:16:29,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 13:16:29,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 13:16:29,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 13:16:29,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 13:16:29,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 13:16:29,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 13:16:29,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 13:16:29,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 13:16:29,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 13:16:29,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 13:16:29,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 13:16:29,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 13:16:29,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 13:16:29,950 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 13:16:29,960 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 13:16:29,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 13:16:29,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 13:16:29,962 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 13:16:29,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 13:16:29,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 13:16:29,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 13:16:29,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 13:16:29,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 13:16:29,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 13:16:29,964 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 13:16:29,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 13:16:29,964 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 13:16:29,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 13:16:29,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 13:16:29,965 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 13:16:29,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 13:16:29,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 13:16:29,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:16:29,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 13:16:29,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 13:16:29,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 13:16:29,966 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 13:16:30,244 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 13:16:30,266 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 13:16:30,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 13:16:30,270 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 13:16:30,271 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 13:16:30,271 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-07-17 13:16:30,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6fdd95d9/1ac943e78238413f887ba7a2f1cbc453/FLAG13eb28fb6 [2020-07-17 13:16:30,901 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 13:16:30,901 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-07-17 13:16:30,923 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6fdd95d9/1ac943e78238413f887ba7a2f1cbc453/FLAG13eb28fb6 [2020-07-17 13:16:31,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6fdd95d9/1ac943e78238413f887ba7a2f1cbc453 [2020-07-17 13:16:31,206 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 13:16:31,212 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 13:16:31,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 13:16:31,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 13:16:31,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 13:16:31,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:16:31" (1/1) ... [2020-07-17 13:16:31,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32b781a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:16:31, skipping insertion in model container [2020-07-17 13:16:31,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:16:31" (1/1) ... [2020-07-17 13:16:31,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 13:16:31,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 13:16:31,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:16:31,620 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 13:16:31,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:16:31,824 INFO L208 MainTranslator]: Completed translation [2020-07-17 13:16:31,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:16:31 WrapperNode [2020-07-17 13:16:31,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 13:16:31,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 13:16:31,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 13:16:31,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 13:16:31,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:16:31" (1/1) ... [2020-07-17 13:16:31,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:16:31" (1/1) ... [2020-07-17 13:16:31,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:16:31" (1/1) ... [2020-07-17 13:16:31,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:16:31" (1/1) ... [2020-07-17 13:16:31,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:16:31" (1/1) ... [2020-07-17 13:16:31,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:16:31" (1/1) ... [2020-07-17 13:16:31,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:16:31" (1/1) ... [2020-07-17 13:16:31,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 13:16:31,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 13:16:31,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 13:16:31,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 13:16:31,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:16:31" (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 [2020-07-17 13:16:31,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 13:16:31,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 13:16:31,981 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-07-17 13:16:31,981 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-07-17 13:16:31,982 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-07-17 13:16:31,982 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 13:16:31,982 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-07-17 13:16:31,982 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-07-17 13:16:31,982 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-07-17 13:16:31,982 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-07-17 13:16:31,983 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-07-17 13:16:31,983 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-07-17 13:16:31,983 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-07-17 13:16:31,983 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-07-17 13:16:31,983 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-07-17 13:16:31,983 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-07-17 13:16:31,984 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-07-17 13:16:31,984 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-07-17 13:16:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 13:16:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-17 13:16:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 13:16:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-17 13:16:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-07-17 13:16:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-07-17 13:16:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-07-17 13:16:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-07-17 13:16:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-07-17 13:16:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-07-17 13:16:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-07-17 13:16:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-07-17 13:16:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-07-17 13:16:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-07-17 13:16:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-07-17 13:16:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-07-17 13:16:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-07-17 13:16:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-07-17 13:16:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 13:16:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-07-17 13:16:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 13:16:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 13:16:32,310 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-17 13:16:32,403 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-07-17 13:16:32,404 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-07-17 13:16:32,440 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-17 13:16:32,598 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-07-17 13:16:32,598 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-07-17 13:16:32,600 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-17 13:16:32,650 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-07-17 13:16:32,650 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-07-17 13:16:32,657 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-17 13:16:32,710 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-07-17 13:16:32,710 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-07-17 13:16:32,871 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-17 13:16:32,895 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-07-17 13:16:32,895 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-07-17 13:16:32,947 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-17 13:16:33,067 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-07-17 13:16:33,067 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-07-17 13:16:33,090 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 13:16:33,091 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 13:16:33,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:16:33 BoogieIcfgContainer [2020-07-17 13:16:33,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 13:16:33,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 13:16:33,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 13:16:33,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 13:16:33,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 01:16:31" (1/3) ... [2020-07-17 13:16:33,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cf447f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:16:33, skipping insertion in model container [2020-07-17 13:16:33,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:16:31" (2/3) ... [2020-07-17 13:16:33,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cf447f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:16:33, skipping insertion in model container [2020-07-17 13:16:33,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:16:33" (3/3) ... [2020-07-17 13:16:33,111 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-07-17 13:16:33,123 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 13:16:33,133 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 13:16:33,150 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 13:16:33,176 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 13:16:33,176 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 13:16:33,176 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 13:16:33,176 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 13:16:33,177 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 13:16:33,177 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 13:16:33,178 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 13:16:33,178 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 13:16:33,208 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states. [2020-07-17 13:16:33,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-07-17 13:16:33,224 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:16:33,225 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] [2020-07-17 13:16:33,226 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:16:33,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:16:33,234 INFO L82 PathProgramCache]: Analyzing trace with hash 738723625, now seen corresponding path program 1 times [2020-07-17 13:16:33,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:16:33,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388580958] [2020-07-17 13:16:33,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:16:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:16:33,710 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:16:33,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388580958] [2020-07-17 13:16:33,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:16:33,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 13:16:33,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651467989] [2020-07-17 13:16:33,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 13:16:33,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:16:33,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 13:16:33,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 13:16:33,743 INFO L87 Difference]: Start difference. First operand 667 states. Second operand 5 states. [2020-07-17 13:16:35,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:16:35,838 INFO L93 Difference]: Finished difference Result 1037 states and 1248 transitions. [2020-07-17 13:16:35,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 13:16:35,840 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2020-07-17 13:16:35,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:16:35,862 INFO L225 Difference]: With dead ends: 1037 [2020-07-17 13:16:35,863 INFO L226 Difference]: Without dead ends: 709 [2020-07-17 13:16:35,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 13:16:35,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2020-07-17 13:16:36,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 655. [2020-07-17 13:16:36,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2020-07-17 13:16:36,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 750 transitions. [2020-07-17 13:16:36,044 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 750 transitions. Word has length 85 [2020-07-17 13:16:36,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:16:36,045 INFO L479 AbstractCegarLoop]: Abstraction has 655 states and 750 transitions. [2020-07-17 13:16:36,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 13:16:36,045 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 750 transitions. [2020-07-17 13:16:36,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-17 13:16:36,051 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:16:36,051 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] [2020-07-17 13:16:36,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 13:16:36,052 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:16:36,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:16:36,052 INFO L82 PathProgramCache]: Analyzing trace with hash -242240865, now seen corresponding path program 1 times [2020-07-17 13:16:36,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:16:36,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [694790097] [2020-07-17 13:16:36,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:16:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:36,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:16:36,343 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:16:36,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [694790097] [2020-07-17 13:16:36,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:16:36,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 13:16:36,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963651371] [2020-07-17 13:16:36,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 13:16:36,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:16:36,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 13:16:36,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-17 13:16:36,350 INFO L87 Difference]: Start difference. First operand 655 states and 750 transitions. Second operand 6 states. [2020-07-17 13:16:38,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:16:38,384 INFO L93 Difference]: Finished difference Result 976 states and 1131 transitions. [2020-07-17 13:16:38,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 13:16:38,386 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-07-17 13:16:38,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:16:38,401 INFO L225 Difference]: With dead ends: 976 [2020-07-17 13:16:38,401 INFO L226 Difference]: Without dead ends: 885 [2020-07-17 13:16:38,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-07-17 13:16:38,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2020-07-17 13:16:38,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 806. [2020-07-17 13:16:38,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 806 states. [2020-07-17 13:16:38,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 917 transitions. [2020-07-17 13:16:38,523 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 917 transitions. Word has length 136 [2020-07-17 13:16:38,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:16:38,525 INFO L479 AbstractCegarLoop]: Abstraction has 806 states and 917 transitions. [2020-07-17 13:16:38,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 13:16:38,526 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 917 transitions. [2020-07-17 13:16:38,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-07-17 13:16:38,542 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:16:38,543 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] [2020-07-17 13:16:38,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 13:16:38,543 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:16:38,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:16:38,544 INFO L82 PathProgramCache]: Analyzing trace with hash 864276638, now seen corresponding path program 1 times [2020-07-17 13:16:38,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:16:38,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587317610] [2020-07-17 13:16:38,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:16:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:38,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:16:38,972 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:16:38,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587317610] [2020-07-17 13:16:38,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:16:38,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 13:16:38,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838629754] [2020-07-17 13:16:38,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 13:16:38,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:16:38,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 13:16:38,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-17 13:16:38,977 INFO L87 Difference]: Start difference. First operand 806 states and 917 transitions. Second operand 6 states. [2020-07-17 13:16:40,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:16:40,464 INFO L93 Difference]: Finished difference Result 1133 states and 1293 transitions. [2020-07-17 13:16:40,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 13:16:40,465 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2020-07-17 13:16:40,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:16:40,471 INFO L225 Difference]: With dead ends: 1133 [2020-07-17 13:16:40,471 INFO L226 Difference]: Without dead ends: 907 [2020-07-17 13:16:40,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-17 13:16:40,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-07-17 13:16:40,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 881. [2020-07-17 13:16:40,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-07-17 13:16:40,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1003 transitions. [2020-07-17 13:16:40,571 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1003 transitions. Word has length 158 [2020-07-17 13:16:40,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:16:40,572 INFO L479 AbstractCegarLoop]: Abstraction has 881 states and 1003 transitions. [2020-07-17 13:16:40,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 13:16:40,573 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1003 transitions. [2020-07-17 13:16:40,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-07-17 13:16:40,575 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:16:40,575 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] [2020-07-17 13:16:40,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 13:16:40,576 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:16:40,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:16:40,576 INFO L82 PathProgramCache]: Analyzing trace with hash 153469469, now seen corresponding path program 1 times [2020-07-17 13:16:40,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:16:40,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604215190] [2020-07-17 13:16:40,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:16:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:40,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:16:40,763 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:16:40,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604215190] [2020-07-17 13:16:40,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:16:40,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 13:16:40,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583913257] [2020-07-17 13:16:40,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 13:16:40,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:16:40,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 13:16:40,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-17 13:16:40,766 INFO L87 Difference]: Start difference. First operand 881 states and 1003 transitions. Second operand 6 states. [2020-07-17 13:16:42,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:16:42,520 INFO L93 Difference]: Finished difference Result 885 states and 1006 transitions. [2020-07-17 13:16:42,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 13:16:42,522 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-07-17 13:16:42,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:16:42,528 INFO L225 Difference]: With dead ends: 885 [2020-07-17 13:16:42,529 INFO L226 Difference]: Without dead ends: 881 [2020-07-17 13:16:42,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-17 13:16:42,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2020-07-17 13:16:42,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 880. [2020-07-17 13:16:42,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-07-17 13:16:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1000 transitions. [2020-07-17 13:16:42,637 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1000 transitions. Word has length 162 [2020-07-17 13:16:42,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:16:42,638 INFO L479 AbstractCegarLoop]: Abstraction has 880 states and 1000 transitions. [2020-07-17 13:16:42,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 13:16:42,638 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1000 transitions. [2020-07-17 13:16:42,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-07-17 13:16:42,642 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:16:42,642 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] [2020-07-17 13:16:42,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 13:16:42,643 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:16:42,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:16:42,643 INFO L82 PathProgramCache]: Analyzing trace with hash -363507173, now seen corresponding path program 1 times [2020-07-17 13:16:42,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:16:42,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123471086] [2020-07-17 13:16:42,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:16:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:42,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:42,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:16:42,898 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:16:42,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123471086] [2020-07-17 13:16:42,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:16:42,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 13:16:42,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024452186] [2020-07-17 13:16:42,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 13:16:42,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:16:42,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 13:16:42,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-17 13:16:42,902 INFO L87 Difference]: Start difference. First operand 880 states and 1000 transitions. Second operand 8 states. [2020-07-17 13:16:43,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:16:43,867 INFO L93 Difference]: Finished difference Result 892 states and 1015 transitions. [2020-07-17 13:16:43,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 13:16:43,868 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-07-17 13:16:43,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:16:43,873 INFO L225 Difference]: With dead ends: 892 [2020-07-17 13:16:43,873 INFO L226 Difference]: Without dead ends: 876 [2020-07-17 13:16:43,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2020-07-17 13:16:43,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2020-07-17 13:16:44,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 821. [2020-07-17 13:16:44,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2020-07-17 13:16:44,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 936 transitions. [2020-07-17 13:16:44,046 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 936 transitions. Word has length 187 [2020-07-17 13:16:44,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:16:44,047 INFO L479 AbstractCegarLoop]: Abstraction has 821 states and 936 transitions. [2020-07-17 13:16:44,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 13:16:44,048 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 936 transitions. [2020-07-17 13:16:44,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-07-17 13:16:44,054 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:16:44,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:16:44,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 13:16:44,055 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:16:44,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:16:44,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1857862353, now seen corresponding path program 1 times [2020-07-17 13:16:44,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:16:44,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792607444] [2020-07-17 13:16:44,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:16:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:44,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:16:44,585 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:16:44,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1792607444] [2020-07-17 13:16:44,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:16:44,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-17 13:16:44,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813535604] [2020-07-17 13:16:44,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 13:16:44,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:16:44,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 13:16:44,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-07-17 13:16:44,589 INFO L87 Difference]: Start difference. First operand 821 states and 936 transitions. Second operand 11 states. [2020-07-17 13:16:46,767 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-07-17 13:16:47,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:16:47,699 INFO L93 Difference]: Finished difference Result 944 states and 1075 transitions. [2020-07-17 13:16:47,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 13:16:47,700 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 193 [2020-07-17 13:16:47,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:16:47,705 INFO L225 Difference]: With dead ends: 944 [2020-07-17 13:16:47,705 INFO L226 Difference]: Without dead ends: 938 [2020-07-17 13:16:47,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-07-17 13:16:47,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2020-07-17 13:16:47,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 880. [2020-07-17 13:16:47,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-07-17 13:16:47,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 997 transitions. [2020-07-17 13:16:47,805 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 997 transitions. Word has length 193 [2020-07-17 13:16:47,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:16:47,805 INFO L479 AbstractCegarLoop]: Abstraction has 880 states and 997 transitions. [2020-07-17 13:16:47,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 13:16:47,805 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 997 transitions. [2020-07-17 13:16:47,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-17 13:16:47,809 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:16:47,809 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] [2020-07-17 13:16:47,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 13:16:47,810 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:16:47,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:16:47,810 INFO L82 PathProgramCache]: Analyzing trace with hash -309975460, now seen corresponding path program 1 times [2020-07-17 13:16:47,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:16:47,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094431994] [2020-07-17 13:16:47,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:16:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:48,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:16:48,617 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:16:48,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2094431994] [2020-07-17 13:16:48,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:16:48,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-07-17 13:16:48,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75454075] [2020-07-17 13:16:48,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-17 13:16:48,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:16:48,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-17 13:16:48,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2020-07-17 13:16:48,620 INFO L87 Difference]: Start difference. First operand 880 states and 997 transitions. Second operand 25 states. [2020-07-17 13:16:52,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:16:52,391 INFO L93 Difference]: Finished difference Result 1002 states and 1127 transitions. [2020-07-17 13:16:52,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-17 13:16:52,391 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 189 [2020-07-17 13:16:52,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:16:52,397 INFO L225 Difference]: With dead ends: 1002 [2020-07-17 13:16:52,397 INFO L226 Difference]: Without dead ends: 928 [2020-07-17 13:16:52,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=321, Invalid=1571, Unknown=0, NotChecked=0, Total=1892 [2020-07-17 13:16:52,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2020-07-17 13:16:52,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 823. [2020-07-17 13:16:52,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2020-07-17 13:16:52,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 931 transitions. [2020-07-17 13:16:52,519 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 931 transitions. Word has length 189 [2020-07-17 13:16:52,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:16:52,519 INFO L479 AbstractCegarLoop]: Abstraction has 823 states and 931 transitions. [2020-07-17 13:16:52,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-17 13:16:52,520 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 931 transitions. [2020-07-17 13:16:52,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-17 13:16:52,523 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:16:52,523 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] [2020-07-17 13:16:52,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 13:16:52,524 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:16:52,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:16:52,524 INFO L82 PathProgramCache]: Analyzing trace with hash -853263794, now seen corresponding path program 1 times [2020-07-17 13:16:52,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:16:52,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1784886415] [2020-07-17 13:16:52,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:16:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:53,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:16:53,104 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:16:53,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1784886415] [2020-07-17 13:16:53,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:16:53,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-07-17 13:16:53,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153297813] [2020-07-17 13:16:53,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-17 13:16:53,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:16:53,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-17 13:16:53,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-07-17 13:16:53,107 INFO L87 Difference]: Start difference. First operand 823 states and 931 transitions. Second operand 17 states. [2020-07-17 13:16:57,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:16:57,512 INFO L93 Difference]: Finished difference Result 845 states and 955 transitions. [2020-07-17 13:16:57,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-17 13:16:57,513 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 190 [2020-07-17 13:16:57,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:16:57,518 INFO L225 Difference]: With dead ends: 845 [2020-07-17 13:16:57,518 INFO L226 Difference]: Without dead ends: 828 [2020-07-17 13:16:57,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2020-07-17 13:16:57,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2020-07-17 13:16:57,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 819. [2020-07-17 13:16:57,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 819 states. [2020-07-17 13:16:57,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 925 transitions. [2020-07-17 13:16:57,656 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 925 transitions. Word has length 190 [2020-07-17 13:16:57,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:16:57,658 INFO L479 AbstractCegarLoop]: Abstraction has 819 states and 925 transitions. [2020-07-17 13:16:57,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-17 13:16:57,658 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 925 transitions. [2020-07-17 13:16:57,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-07-17 13:16:57,662 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:16:57,662 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] [2020-07-17 13:16:57,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 13:16:57,663 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:16:57,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:16:57,663 INFO L82 PathProgramCache]: Analyzing trace with hash -443732248, now seen corresponding path program 1 times [2020-07-17 13:16:57,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:16:57,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777646859] [2020-07-17 13:16:57,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:16:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:16:58,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:16:58,045 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:16:58,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777646859] [2020-07-17 13:16:58,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:16:58,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-17 13:16:58,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205432439] [2020-07-17 13:16:58,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-17 13:16:58,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:16:58,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-17 13:16:58,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-07-17 13:16:58,049 INFO L87 Difference]: Start difference. First operand 819 states and 925 transitions. Second operand 13 states. [2020-07-17 13:17:01,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:01,716 INFO L93 Difference]: Finished difference Result 841 states and 949 transitions. [2020-07-17 13:17:01,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 13:17:01,717 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 193 [2020-07-17 13:17:01,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:01,722 INFO L225 Difference]: With dead ends: 841 [2020-07-17 13:17:01,722 INFO L226 Difference]: Without dead ends: 744 [2020-07-17 13:17:01,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-07-17 13:17:01,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2020-07-17 13:17:01,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 735. [2020-07-17 13:17:01,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-07-17 13:17:01,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 831 transitions. [2020-07-17 13:17:01,836 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 831 transitions. Word has length 193 [2020-07-17 13:17:01,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:01,837 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 831 transitions. [2020-07-17 13:17:01,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-17 13:17:01,837 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 831 transitions. [2020-07-17 13:17:01,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-17 13:17:01,840 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:01,840 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] [2020-07-17 13:17:01,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 13:17:01,841 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:01,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:01,841 INFO L82 PathProgramCache]: Analyzing trace with hash -132300136, now seen corresponding path program 1 times [2020-07-17 13:17:01,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:01,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118503792] [2020-07-17 13:17:01,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:02,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:02,308 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:02,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2118503792] [2020-07-17 13:17:02,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:02,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-07-17 13:17:02,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440029564] [2020-07-17 13:17:02,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-17 13:17:02,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:02,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-17 13:17:02,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-07-17 13:17:02,311 INFO L87 Difference]: Start difference. First operand 735 states and 831 transitions. Second operand 17 states. [2020-07-17 13:17:05,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:05,846 INFO L93 Difference]: Finished difference Result 757 states and 855 transitions. [2020-07-17 13:17:05,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-17 13:17:05,847 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 195 [2020-07-17 13:17:05,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:05,852 INFO L225 Difference]: With dead ends: 757 [2020-07-17 13:17:05,852 INFO L226 Difference]: Without dead ends: 714 [2020-07-17 13:17:05,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2020-07-17 13:17:05,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2020-07-17 13:17:05,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 705. [2020-07-17 13:17:05,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2020-07-17 13:17:05,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 796 transitions. [2020-07-17 13:17:05,948 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 796 transitions. Word has length 195 [2020-07-17 13:17:05,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:05,949 INFO L479 AbstractCegarLoop]: Abstraction has 705 states and 796 transitions. [2020-07-17 13:17:05,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-17 13:17:05,949 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 796 transitions. [2020-07-17 13:17:05,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-07-17 13:17:05,952 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:05,952 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] [2020-07-17 13:17:05,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-17 13:17:05,952 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:05,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:05,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1742770590, now seen corresponding path program 1 times [2020-07-17 13:17:05,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:05,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1735053585] [2020-07-17 13:17:05,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:06,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:06,544 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:06,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1735053585] [2020-07-17 13:17:06,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:06,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-07-17 13:17:06,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699353589] [2020-07-17 13:17:06,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-17 13:17:06,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:06,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-17 13:17:06,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2020-07-17 13:17:06,547 INFO L87 Difference]: Start difference. First operand 705 states and 796 transitions. Second operand 21 states. [2020-07-17 13:17:09,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:09,050 INFO L93 Difference]: Finished difference Result 763 states and 856 transitions. [2020-07-17 13:17:09,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-17 13:17:09,051 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 197 [2020-07-17 13:17:09,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:09,055 INFO L225 Difference]: With dead ends: 763 [2020-07-17 13:17:09,055 INFO L226 Difference]: Without dead ends: 655 [2020-07-17 13:17:09,056 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=159, Invalid=543, Unknown=0, NotChecked=0, Total=702 [2020-07-17 13:17:09,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2020-07-17 13:17:09,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 624. [2020-07-17 13:17:09,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2020-07-17 13:17:09,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 698 transitions. [2020-07-17 13:17:09,131 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 698 transitions. Word has length 197 [2020-07-17 13:17:09,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:09,131 INFO L479 AbstractCegarLoop]: Abstraction has 624 states and 698 transitions. [2020-07-17 13:17:09,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-17 13:17:09,131 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 698 transitions. [2020-07-17 13:17:09,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-17 13:17:09,133 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:09,133 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] [2020-07-17 13:17:09,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-17 13:17:09,134 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:09,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:09,134 INFO L82 PathProgramCache]: Analyzing trace with hash -759676943, now seen corresponding path program 1 times [2020-07-17 13:17:09,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:09,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502926111] [2020-07-17 13:17:09,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:09,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:09,474 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:09,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502926111] [2020-07-17 13:17:09,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:09,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-17 13:17:09,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905984172] [2020-07-17 13:17:09,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-17 13:17:09,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:09,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-17 13:17:09,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-07-17 13:17:09,476 INFO L87 Difference]: Start difference. First operand 624 states and 698 transitions. Second operand 14 states. [2020-07-17 13:17:11,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:11,686 INFO L93 Difference]: Finished difference Result 652 states and 728 transitions. [2020-07-17 13:17:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-17 13:17:11,693 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 204 [2020-07-17 13:17:11,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:11,696 INFO L225 Difference]: With dead ends: 652 [2020-07-17 13:17:11,696 INFO L226 Difference]: Without dead ends: 620 [2020-07-17 13:17:11,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2020-07-17 13:17:11,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2020-07-17 13:17:11,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 611. [2020-07-17 13:17:11,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-07-17 13:17:11,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 683 transitions. [2020-07-17 13:17:11,786 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 683 transitions. Word has length 204 [2020-07-17 13:17:11,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:11,787 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 683 transitions. [2020-07-17 13:17:11,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-17 13:17:11,787 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 683 transitions. [2020-07-17 13:17:11,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-07-17 13:17:11,790 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:11,790 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] [2020-07-17 13:17:11,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-17 13:17:11,791 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:11,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:11,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1349540408, now seen corresponding path program 1 times [2020-07-17 13:17:11,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:11,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42214565] [2020-07-17 13:17:11,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:12,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:12,145 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:12,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42214565] [2020-07-17 13:17:12,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:12,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-17 13:17:12,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390367401] [2020-07-17 13:17:12,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-17 13:17:12,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:12,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-17 13:17:12,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-07-17 13:17:12,148 INFO L87 Difference]: Start difference. First operand 611 states and 683 transitions. Second operand 13 states. [2020-07-17 13:17:15,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:15,269 INFO L93 Difference]: Finished difference Result 932 states and 1052 transitions. [2020-07-17 13:17:15,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-17 13:17:15,269 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 205 [2020-07-17 13:17:15,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:15,274 INFO L225 Difference]: With dead ends: 932 [2020-07-17 13:17:15,274 INFO L226 Difference]: Without dead ends: 793 [2020-07-17 13:17:15,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=138, Invalid=564, Unknown=0, NotChecked=0, Total=702 [2020-07-17 13:17:15,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2020-07-17 13:17:15,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 625. [2020-07-17 13:17:15,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2020-07-17 13:17:15,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 701 transitions. [2020-07-17 13:17:15,376 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 701 transitions. Word has length 205 [2020-07-17 13:17:15,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:15,377 INFO L479 AbstractCegarLoop]: Abstraction has 625 states and 701 transitions. [2020-07-17 13:17:15,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-17 13:17:15,377 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 701 transitions. [2020-07-17 13:17:15,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-07-17 13:17:15,378 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:15,379 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] [2020-07-17 13:17:15,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-17 13:17:15,379 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:15,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:15,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1202059503, now seen corresponding path program 1 times [2020-07-17 13:17:15,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:15,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [944869196] [2020-07-17 13:17:15,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:15,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:15,702 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:15,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [944869196] [2020-07-17 13:17:15,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:15,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-17 13:17:15,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654924547] [2020-07-17 13:17:15,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-17 13:17:15,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:15,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-17 13:17:15,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-07-17 13:17:15,705 INFO L87 Difference]: Start difference. First operand 625 states and 701 transitions. Second operand 14 states. [2020-07-17 13:17:18,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:18,047 INFO L93 Difference]: Finished difference Result 653 states and 731 transitions. [2020-07-17 13:17:18,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-17 13:17:18,048 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 205 [2020-07-17 13:17:18,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:18,051 INFO L225 Difference]: With dead ends: 653 [2020-07-17 13:17:18,052 INFO L226 Difference]: Without dead ends: 604 [2020-07-17 13:17:18,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2020-07-17 13:17:18,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-07-17 13:17:18,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 595. [2020-07-17 13:17:18,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2020-07-17 13:17:18,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 650 transitions. [2020-07-17 13:17:18,150 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 650 transitions. Word has length 205 [2020-07-17 13:17:18,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:18,150 INFO L479 AbstractCegarLoop]: Abstraction has 595 states and 650 transitions. [2020-07-17 13:17:18,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-17 13:17:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 650 transitions. [2020-07-17 13:17:18,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-17 13:17:18,153 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:18,153 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] [2020-07-17 13:17:18,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-17 13:17:18,153 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:18,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:18,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1820990330, now seen corresponding path program 1 times [2020-07-17 13:17:18,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:18,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879844620] [2020-07-17 13:17:18,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:17:18,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:17:18,356 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:18,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879844620] [2020-07-17 13:17:18,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:17:18,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 13:17:18,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126213228] [2020-07-17 13:17:18,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 13:17:18,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:17:18,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 13:17:18,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-17 13:17:18,358 INFO L87 Difference]: Start difference. First operand 595 states and 650 transitions. Second operand 8 states. [2020-07-17 13:17:19,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:17:19,351 INFO L93 Difference]: Finished difference Result 718 states and 790 transitions. [2020-07-17 13:17:19,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 13:17:19,352 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 213 [2020-07-17 13:17:19,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:17:19,355 INFO L225 Difference]: With dead ends: 718 [2020-07-17 13:17:19,355 INFO L226 Difference]: Without dead ends: 622 [2020-07-17 13:17:19,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-17 13:17:19,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2020-07-17 13:17:19,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 591. [2020-07-17 13:17:19,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-07-17 13:17:19,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 643 transitions. [2020-07-17 13:17:19,431 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 643 transitions. Word has length 213 [2020-07-17 13:17:19,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:17:19,431 INFO L479 AbstractCegarLoop]: Abstraction has 591 states and 643 transitions. [2020-07-17 13:17:19,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 13:17:19,431 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 643 transitions. [2020-07-17 13:17:19,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-07-17 13:17:19,434 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:17:19,434 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] [2020-07-17 13:17:19,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-17 13:17:19,434 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:17:19,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:17:19,435 INFO L82 PathProgramCache]: Analyzing trace with hash 468800160, now seen corresponding path program 1 times [2020-07-17 13:17:19,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:17:19,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519919208] [2020-07-17 13:17:19,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:17:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:17:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:17:19,577 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:17:19,577 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 13:17:19,577 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 13:17:19,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-17 13:17:19,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 01:17:19 BoogieIcfgContainer [2020-07-17 13:17:19,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 13:17:19,614 INFO L168 Benchmark]: Toolchain (without parser) took 48406.49 ms. Allocated memory was 137.9 MB in the beginning and 679.0 MB in the end (delta: 541.1 MB). Free memory was 101.9 MB in the beginning and 154.5 MB in the end (delta: -52.6 MB). Peak memory consumption was 488.4 MB. Max. memory is 7.1 GB. [2020-07-17 13:17:19,615 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 13:17:19,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.70 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 175.0 MB in the end (delta: -73.5 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2020-07-17 13:17:19,617 INFO L168 Benchmark]: Boogie Preprocessor took 77.72 ms. Allocated memory is still 201.9 MB. Free memory was 175.0 MB in the beginning and 171.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2020-07-17 13:17:19,617 INFO L168 Benchmark]: RCFGBuilder took 1198.34 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 171.2 MB in the beginning and 186.9 MB in the end (delta: -15.7 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB. [2020-07-17 13:17:19,618 INFO L168 Benchmark]: TraceAbstraction took 46510.01 ms. Allocated memory was 234.4 MB in the beginning and 679.0 MB in the end (delta: 444.6 MB). Free memory was 186.9 MB in the beginning and 154.5 MB in the end (delta: 32.4 MB). Peak memory consumption was 476.9 MB. Max. memory is 7.1 GB. [2020-07-17 13:17:19,621 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 611.70 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 175.0 MB in the end (delta: -73.5 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 77.72 ms. Allocated memory is still 201.9 MB. Free memory was 175.0 MB in the beginning and 171.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1198.34 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 171.2 MB in the beginning and 186.9 MB in the end (delta: -15.7 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 46510.01 ms. Allocated memory was 234.4 MB in the beginning and 679.0 MB in the end (delta: 444.6 MB). Free memory was 186.9 MB in the beginning and 154.5 MB in the end (delta: 32.4 MB). Peak memory consumption was 476.9 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: 46.4s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 38.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9555 SDtfs, 16230 SDslu, 19305 SDs, 0 SdLazy, 33013 SolverSat, 1291 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 435 GetRequests, 178 SyntacticMatches, 6 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 961 ImplicationChecksByTransitivity, 6.4s 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, 653 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...