/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 --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 23:18:26,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:18:26,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:18:27,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 23:18:27,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 23:18:27,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 23:18:27,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 23:18:27,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 23:18:27,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 23:18:27,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 23:18:27,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 23:18:27,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 23:18:27,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 23:18:27,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 23:18:27,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 23:18:27,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 23:18:27,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 23:18:27,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 23:18:27,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 23:18:27,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 23:18:27,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 23:18:27,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 23:18:27,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 23:18:27,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 23:18:27,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 23:18:27,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 23:18:27,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 23:18:27,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 23:18:27,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 23:18:27,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 23:18:27,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 23:18:27,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 23:18:27,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 23:18:27,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 23:18:27,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 23:18:27,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 23:18:27,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 23:18:27,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 23:18:27,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:18:27,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:18:27,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:18:27,077 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-19 23:18:27,092 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:18:27,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:18:27,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:18:27,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:18:27,094 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:18:27,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:18:27,094 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:18:27,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:18:27,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:18:27,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:18:27,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:18:27,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:18:27,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:18:27,095 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:18:27,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:18:27,096 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:18:27,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:18:27,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:18:27,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:18:27,097 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:18:27,097 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:18:27,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:18:27,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:18:27,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:18:27,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:18:27,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:18:27,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:18:27,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:18:27,099 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:18:27,099 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 23:18:27,362 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:18:27,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:18:27,378 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:18:27,380 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:18:27,380 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:18:27,381 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-07-19 23:18:27,458 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddc7af632/8ffa6ac766ec4f969cddfc0d6819e06e/FLAG89103f17c [2020-07-19 23:18:28,007 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:18:28,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-07-19 23:18:28,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddc7af632/8ffa6ac766ec4f969cddfc0d6819e06e/FLAG89103f17c [2020-07-19 23:18:28,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddc7af632/8ffa6ac766ec4f969cddfc0d6819e06e [2020-07-19 23:18:28,323 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:18:28,326 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:18:28,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:18:28,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:18:28,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:18:28,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:18:28" (1/1) ... [2020-07-19 23:18:28,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74f9d48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:18:28, skipping insertion in model container [2020-07-19 23:18:28,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:18:28" (1/1) ... [2020-07-19 23:18:28,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:18:28,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:18:28,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:18:28,742 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:18:28,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:18:28,946 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:18:28,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:18:28 WrapperNode [2020-07-19 23:18:28,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:18:28,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:18:28,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:18:28,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:18:28,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:18:28" (1/1) ... [2020-07-19 23:18:28,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:18:28" (1/1) ... [2020-07-19 23:18:28,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:18:28" (1/1) ... [2020-07-19 23:18:28,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:18:28" (1/1) ... [2020-07-19 23:18:28,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:18:28" (1/1) ... [2020-07-19 23:18:29,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:18:28" (1/1) ... [2020-07-19 23:18:29,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:18:28" (1/1) ... [2020-07-19 23:18:29,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:18:29,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:18:29,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:18:29,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:18:29,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:18:28" (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 [2020-07-19 23:18:29,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:18:29,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:18:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-07-19 23:18:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-07-19 23:18:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-07-19 23:18:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:18:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-07-19 23:18:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-07-19 23:18:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-07-19 23:18:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-07-19 23:18:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-07-19 23:18:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-07-19 23:18:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-07-19 23:18:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-07-19 23:18:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-07-19 23:18:29,083 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-07-19 23:18:29,083 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-07-19 23:18:29,083 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-07-19 23:18:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:18:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-19 23:18:29,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 23:18:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-19 23:18:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-07-19 23:18:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-07-19 23:18:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-07-19 23:18:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-07-19 23:18:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-07-19 23:18:29,084 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-07-19 23:18:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-07-19 23:18:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-07-19 23:18:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-07-19 23:18:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-07-19 23:18:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-07-19 23:18:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-07-19 23:18:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-07-19 23:18:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-07-19 23:18:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:18:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-07-19 23:18:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:18:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:18:29,351 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-19 23:18:29,424 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-07-19 23:18:29,424 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-07-19 23:18:29,455 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-19 23:18:29,604 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-07-19 23:18:29,605 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-07-19 23:18:29,607 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-19 23:18:29,675 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-07-19 23:18:29,675 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-07-19 23:18:29,699 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-19 23:18:29,787 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-07-19 23:18:29,788 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-07-19 23:18:29,893 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-19 23:18:29,917 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-07-19 23:18:29,917 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-07-19 23:18:29,942 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-19 23:18:30,033 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-07-19 23:18:30,033 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-07-19 23:18:30,052 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:18:30,053 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-19 23:18:30,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:18:30 BoogieIcfgContainer [2020-07-19 23:18:30,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:18:30,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:18:30,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:18:30,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:18:30,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:18:28" (1/3) ... [2020-07-19 23:18:30,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a19a946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:18:30, skipping insertion in model container [2020-07-19 23:18:30,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:18:28" (2/3) ... [2020-07-19 23:18:30,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a19a946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:18:30, skipping insertion in model container [2020-07-19 23:18:30,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:18:30" (3/3) ... [2020-07-19 23:18:30,069 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-07-19 23:18:30,080 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:18:30,089 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:18:30,103 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:18:30,131 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:18:30,132 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:18:30,132 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:18:30,132 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:18:30,133 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:18:30,133 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:18:30,133 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:18:30,133 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:18:30,160 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-07-19 23:18:30,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-19 23:18:30,167 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:30,168 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] [2020-07-19 23:18:30,169 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:30,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:30,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1129426977, now seen corresponding path program 1 times [2020-07-19 23:18:30,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:30,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773350772] [2020-07-19 23:18:30,184 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:30,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:30,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773350772] [2020-07-19 23:18:30,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:30,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-19 23:18:30,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080880812] [2020-07-19 23:18:30,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 23:18:30,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:30,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 23:18:30,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 23:18:30,703 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 5 states. [2020-07-19 23:18:31,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:31,881 INFO L93 Difference]: Finished difference Result 418 states and 629 transitions. [2020-07-19 23:18:31,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 23:18:31,884 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-07-19 23:18:31,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:31,901 INFO L225 Difference]: With dead ends: 418 [2020-07-19 23:18:31,901 INFO L226 Difference]: Without dead ends: 259 [2020-07-19 23:18:31,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 23:18:31,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-07-19 23:18:31,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 231. [2020-07-19 23:18:31,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-07-19 23:18:31,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 326 transitions. [2020-07-19 23:18:31,992 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 326 transitions. Word has length 20 [2020-07-19 23:18:31,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:31,992 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 326 transitions. [2020-07-19 23:18:31,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 23:18:31,993 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 326 transitions. [2020-07-19 23:18:31,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-19 23:18:31,995 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:31,996 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] [2020-07-19 23:18:31,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:18:31,996 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:31,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:31,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1811427322, now seen corresponding path program 1 times [2020-07-19 23:18:31,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:31,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906411254] [2020-07-19 23:18:31,999 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:32,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:32,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906411254] [2020-07-19 23:18:32,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:32,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 23:18:32,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753512724] [2020-07-19 23:18:32,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 23:18:32,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:32,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 23:18:32,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:18:32,272 INFO L87 Difference]: Start difference. First operand 231 states and 326 transitions. Second operand 6 states. [2020-07-19 23:18:33,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:33,584 INFO L93 Difference]: Finished difference Result 410 states and 565 transitions. [2020-07-19 23:18:33,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 23:18:33,585 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-07-19 23:18:33,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:33,594 INFO L225 Difference]: With dead ends: 410 [2020-07-19 23:18:33,595 INFO L226 Difference]: Without dead ends: 349 [2020-07-19 23:18:33,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:18:33,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-07-19 23:18:33,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 304. [2020-07-19 23:18:33,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-07-19 23:18:33,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 415 transitions. [2020-07-19 23:18:33,689 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 415 transitions. Word has length 28 [2020-07-19 23:18:33,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:33,690 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 415 transitions. [2020-07-19 23:18:33,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 23:18:33,690 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 415 transitions. [2020-07-19 23:18:33,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-19 23:18:33,692 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:33,693 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] [2020-07-19 23:18:33,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 23:18:33,693 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:33,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:33,694 INFO L82 PathProgramCache]: Analyzing trace with hash 439620198, now seen corresponding path program 1 times [2020-07-19 23:18:33,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:33,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928253509] [2020-07-19 23:18:33,696 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:33,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:33,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928253509] [2020-07-19 23:18:33,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:33,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 23:18:33,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143280594] [2020-07-19 23:18:33,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 23:18:33,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:33,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 23:18:33,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:18:33,899 INFO L87 Difference]: Start difference. First operand 304 states and 415 transitions. Second operand 6 states. [2020-07-19 23:18:34,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:34,747 INFO L93 Difference]: Finished difference Result 487 states and 647 transitions. [2020-07-19 23:18:34,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 23:18:34,747 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-07-19 23:18:34,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:34,756 INFO L225 Difference]: With dead ends: 487 [2020-07-19 23:18:34,756 INFO L226 Difference]: Without dead ends: 368 [2020-07-19 23:18:34,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:18:34,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-07-19 23:18:34,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 344. [2020-07-19 23:18:34,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-07-19 23:18:34,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 466 transitions. [2020-07-19 23:18:34,808 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 466 transitions. Word has length 28 [2020-07-19 23:18:34,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:34,809 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 466 transitions. [2020-07-19 23:18:34,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 23:18:34,809 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 466 transitions. [2020-07-19 23:18:34,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-19 23:18:34,822 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:34,822 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] [2020-07-19 23:18:34,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 23:18:34,823 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:34,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:34,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1607848921, now seen corresponding path program 1 times [2020-07-19 23:18:34,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:34,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212408156] [2020-07-19 23:18:34,826 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:35,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:35,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212408156] [2020-07-19 23:18:35,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:35,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 23:18:35,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941388871] [2020-07-19 23:18:35,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 23:18:35,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:35,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 23:18:35,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:18:35,023 INFO L87 Difference]: Start difference. First operand 344 states and 466 transitions. Second operand 6 states. [2020-07-19 23:18:35,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:35,832 INFO L93 Difference]: Finished difference Result 347 states and 468 transitions. [2020-07-19 23:18:35,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 23:18:35,833 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-19 23:18:35,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:35,836 INFO L225 Difference]: With dead ends: 347 [2020-07-19 23:18:35,836 INFO L226 Difference]: Without dead ends: 343 [2020-07-19 23:18:35,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-19 23:18:35,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-07-19 23:18:35,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2020-07-19 23:18:35,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-07-19 23:18:35,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 463 transitions. [2020-07-19 23:18:35,866 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 463 transitions. Word has length 38 [2020-07-19 23:18:35,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:35,867 INFO L479 AbstractCegarLoop]: Abstraction has 343 states and 463 transitions. [2020-07-19 23:18:35,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 23:18:35,867 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 463 transitions. [2020-07-19 23:18:35,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-19 23:18:35,869 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:35,870 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] [2020-07-19 23:18:35,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 23:18:35,870 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:35,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:35,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1742109340, now seen corresponding path program 1 times [2020-07-19 23:18:35,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:35,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915434701] [2020-07-19 23:18:35,871 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:36,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:36,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915434701] [2020-07-19 23:18:36,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:36,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 23:18:36,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068569391] [2020-07-19 23:18:36,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 23:18:36,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:36,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 23:18:36,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:18:36,053 INFO L87 Difference]: Start difference. First operand 343 states and 463 transitions. Second operand 8 states. [2020-07-19 23:18:37,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:37,208 INFO L93 Difference]: Finished difference Result 394 states and 520 transitions. [2020-07-19 23:18:37,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-19 23:18:37,214 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2020-07-19 23:18:37,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:37,217 INFO L225 Difference]: With dead ends: 394 [2020-07-19 23:18:37,217 INFO L226 Difference]: Without dead ends: 325 [2020-07-19 23:18:37,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-19 23:18:37,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-07-19 23:18:37,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 304. [2020-07-19 23:18:37,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-07-19 23:18:37,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 406 transitions. [2020-07-19 23:18:37,249 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 406 transitions. Word has length 46 [2020-07-19 23:18:37,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:37,251 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 406 transitions. [2020-07-19 23:18:37,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 23:18:37,252 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 406 transitions. [2020-07-19 23:18:37,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-19 23:18:37,253 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:37,254 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] [2020-07-19 23:18:37,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 23:18:37,254 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:37,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:37,254 INFO L82 PathProgramCache]: Analyzing trace with hash 750041855, now seen corresponding path program 1 times [2020-07-19 23:18:37,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:37,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652485352] [2020-07-19 23:18:37,255 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:37,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:37,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652485352] [2020-07-19 23:18:37,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:37,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 23:18:37,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416405283] [2020-07-19 23:18:37,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 23:18:37,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:37,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 23:18:37,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:18:37,475 INFO L87 Difference]: Start difference. First operand 304 states and 406 transitions. Second operand 8 states. [2020-07-19 23:18:37,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:37,969 INFO L93 Difference]: Finished difference Result 316 states and 421 transitions. [2020-07-19 23:18:37,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 23:18:37,969 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-07-19 23:18:37,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:37,972 INFO L225 Difference]: With dead ends: 316 [2020-07-19 23:18:37,973 INFO L226 Difference]: Without dead ends: 300 [2020-07-19 23:18:37,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-07-19 23:18:37,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-07-19 23:18:37,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 270. [2020-07-19 23:18:37,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-07-19 23:18:38,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 364 transitions. [2020-07-19 23:18:38,001 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 364 transitions. Word has length 45 [2020-07-19 23:18:38,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:38,001 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 364 transitions. [2020-07-19 23:18:38,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 23:18:38,002 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 364 transitions. [2020-07-19 23:18:38,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-19 23:18:38,003 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:38,003 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] [2020-07-19 23:18:38,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-19 23:18:38,004 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:38,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:38,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1784783245, now seen corresponding path program 1 times [2020-07-19 23:18:38,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:38,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618401182] [2020-07-19 23:18:38,005 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:38,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:38,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618401182] [2020-07-19 23:18:38,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:38,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 23:18:38,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388064011] [2020-07-19 23:18:38,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 23:18:38,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:38,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 23:18:38,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:18:38,230 INFO L87 Difference]: Start difference. First operand 270 states and 364 transitions. Second operand 8 states. [2020-07-19 23:18:39,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:39,156 INFO L93 Difference]: Finished difference Result 290 states and 385 transitions. [2020-07-19 23:18:39,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 23:18:39,157 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2020-07-19 23:18:39,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:39,160 INFO L225 Difference]: With dead ends: 290 [2020-07-19 23:18:39,161 INFO L226 Difference]: Without dead ends: 242 [2020-07-19 23:18:39,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:18:39,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-07-19 23:18:39,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-07-19 23:18:39,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-07-19 23:18:39,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 321 transitions. [2020-07-19 23:18:39,179 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 321 transitions. Word has length 46 [2020-07-19 23:18:39,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:39,180 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 321 transitions. [2020-07-19 23:18:39,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 23:18:39,180 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 321 transitions. [2020-07-19 23:18:39,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-19 23:18:39,181 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:39,182 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] [2020-07-19 23:18:39,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-19 23:18:39,182 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:39,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:39,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1852297644, now seen corresponding path program 1 times [2020-07-19 23:18:39,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:39,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629921736] [2020-07-19 23:18:39,183 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:39,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:39,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629921736] [2020-07-19 23:18:39,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:39,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 23:18:39,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780491334] [2020-07-19 23:18:39,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 23:18:39,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:39,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 23:18:39,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:18:39,374 INFO L87 Difference]: Start difference. First operand 242 states and 321 transitions. Second operand 8 states. [2020-07-19 23:18:40,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:40,033 INFO L93 Difference]: Finished difference Result 270 states and 354 transitions. [2020-07-19 23:18:40,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 23:18:40,033 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-07-19 23:18:40,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:40,036 INFO L225 Difference]: With dead ends: 270 [2020-07-19 23:18:40,036 INFO L226 Difference]: Without dead ends: 240 [2020-07-19 23:18:40,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-19 23:18:40,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-07-19 23:18:40,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2020-07-19 23:18:40,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-07-19 23:18:40,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 317 transitions. [2020-07-19 23:18:40,055 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 317 transitions. Word has length 53 [2020-07-19 23:18:40,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:40,055 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 317 transitions. [2020-07-19 23:18:40,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 23:18:40,055 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 317 transitions. [2020-07-19 23:18:40,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-19 23:18:40,057 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:40,057 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] [2020-07-19 23:18:40,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-19 23:18:40,057 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:40,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:40,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1745163498, now seen corresponding path program 1 times [2020-07-19 23:18:40,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:40,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605230942] [2020-07-19 23:18:40,058 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:40,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:40,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605230942] [2020-07-19 23:18:40,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:40,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-19 23:18:40,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643979650] [2020-07-19 23:18:40,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 23:18:40,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:40,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 23:18:40,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:18:40,272 INFO L87 Difference]: Start difference. First operand 240 states and 317 transitions. Second operand 9 states. [2020-07-19 23:18:41,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:41,684 INFO L93 Difference]: Finished difference Result 313 states and 400 transitions. [2020-07-19 23:18:41,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 23:18:41,684 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-07-19 23:18:41,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:41,687 INFO L225 Difference]: With dead ends: 313 [2020-07-19 23:18:41,687 INFO L226 Difference]: Without dead ends: 307 [2020-07-19 23:18:41,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-07-19 23:18:41,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-07-19 23:18:41,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 274. [2020-07-19 23:18:41,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-07-19 23:18:41,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 356 transitions. [2020-07-19 23:18:41,717 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 356 transitions. Word has length 51 [2020-07-19 23:18:41,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:41,717 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 356 transitions. [2020-07-19 23:18:41,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 23:18:41,718 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 356 transitions. [2020-07-19 23:18:41,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 23:18:41,720 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:41,720 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] [2020-07-19 23:18:41,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-19 23:18:41,720 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:41,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:41,721 INFO L82 PathProgramCache]: Analyzing trace with hash -855964733, now seen corresponding path program 1 times [2020-07-19 23:18:41,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:41,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071506557] [2020-07-19 23:18:41,722 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:41,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:41,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071506557] [2020-07-19 23:18:41,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:41,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-19 23:18:41,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044441272] [2020-07-19 23:18:41,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-19 23:18:41,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:41,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-19 23:18:41,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-07-19 23:18:41,994 INFO L87 Difference]: Start difference. First operand 274 states and 356 transitions. Second operand 13 states. [2020-07-19 23:18:44,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:44,144 INFO L93 Difference]: Finished difference Result 325 states and 410 transitions. [2020-07-19 23:18:44,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-19 23:18:44,147 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 52 [2020-07-19 23:18:44,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:44,150 INFO L225 Difference]: With dead ends: 325 [2020-07-19 23:18:44,152 INFO L226 Difference]: Without dead ends: 284 [2020-07-19 23:18:44,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2020-07-19 23:18:44,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-07-19 23:18:44,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 240. [2020-07-19 23:18:44,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-07-19 23:18:44,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 315 transitions. [2020-07-19 23:18:44,193 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 315 transitions. Word has length 52 [2020-07-19 23:18:44,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:44,194 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 315 transitions. [2020-07-19 23:18:44,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-19 23:18:44,195 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 315 transitions. [2020-07-19 23:18:44,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-19 23:18:44,197 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:44,197 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] [2020-07-19 23:18:44,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-19 23:18:44,198 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:44,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:44,198 INFO L82 PathProgramCache]: Analyzing trace with hash 240184037, now seen corresponding path program 1 times [2020-07-19 23:18:44,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:44,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904232642] [2020-07-19 23:18:44,199 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:44,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:44,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:44,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:44,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904232642] [2020-07-19 23:18:44,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:44,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-19 23:18:44,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849332252] [2020-07-19 23:18:44,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-19 23:18:44,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:44,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-19 23:18:44,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-07-19 23:18:44,468 INFO L87 Difference]: Start difference. First operand 240 states and 315 transitions. Second operand 12 states. [2020-07-19 23:18:45,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:45,716 INFO L93 Difference]: Finished difference Result 252 states and 327 transitions. [2020-07-19 23:18:45,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 23:18:45,717 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2020-07-19 23:18:45,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:45,720 INFO L225 Difference]: With dead ends: 252 [2020-07-19 23:18:45,720 INFO L226 Difference]: Without dead ends: 211 [2020-07-19 23:18:45,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-07-19 23:18:45,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-07-19 23:18:45,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-07-19 23:18:45,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-07-19 23:18:45,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 276 transitions. [2020-07-19 23:18:45,739 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 276 transitions. Word has length 53 [2020-07-19 23:18:45,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:45,739 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 276 transitions. [2020-07-19 23:18:45,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-19 23:18:45,740 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 276 transitions. [2020-07-19 23:18:45,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-19 23:18:45,741 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:45,741 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] [2020-07-19 23:18:45,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-19 23:18:45,742 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:45,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:45,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1569125, now seen corresponding path program 1 times [2020-07-19 23:18:45,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:45,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922595116] [2020-07-19 23:18:45,743 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:45,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:45,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922595116] [2020-07-19 23:18:45,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:45,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-19 23:18:45,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107105733] [2020-07-19 23:18:45,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-19 23:18:45,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:45,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-19 23:18:45,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-07-19 23:18:45,998 INFO L87 Difference]: Start difference. First operand 211 states and 276 transitions. Second operand 14 states. [2020-07-19 23:18:47,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:47,201 INFO L93 Difference]: Finished difference Result 227 states and 292 transitions. [2020-07-19 23:18:47,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 23:18:47,201 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 54 [2020-07-19 23:18:47,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:47,203 INFO L225 Difference]: With dead ends: 227 [2020-07-19 23:18:47,203 INFO L226 Difference]: Without dead ends: 206 [2020-07-19 23:18:47,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-07-19 23:18:47,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-07-19 23:18:47,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-07-19 23:18:47,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-07-19 23:18:47,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 269 transitions. [2020-07-19 23:18:47,222 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 269 transitions. Word has length 54 [2020-07-19 23:18:47,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:47,223 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 269 transitions. [2020-07-19 23:18:47,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-19 23:18:47,223 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 269 transitions. [2020-07-19 23:18:47,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-19 23:18:47,224 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:47,224 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] [2020-07-19 23:18:47,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-19 23:18:47,225 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:47,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:47,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1204113239, now seen corresponding path program 1 times [2020-07-19 23:18:47,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:47,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86739254] [2020-07-19 23:18:47,226 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:47,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:47,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86739254] [2020-07-19 23:18:47,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:47,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-19 23:18:47,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727296029] [2020-07-19 23:18:47,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-19 23:18:47,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:47,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-19 23:18:47,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-07-19 23:18:47,449 INFO L87 Difference]: Start difference. First operand 206 states and 269 transitions. Second operand 11 states. [2020-07-19 23:18:48,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:48,318 INFO L93 Difference]: Finished difference Result 296 states and 379 transitions. [2020-07-19 23:18:48,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 23:18:48,319 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 57 [2020-07-19 23:18:48,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:48,322 INFO L225 Difference]: With dead ends: 296 [2020-07-19 23:18:48,322 INFO L226 Difference]: Without dead ends: 224 [2020-07-19 23:18:48,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-07-19 23:18:48,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-07-19 23:18:48,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 214. [2020-07-19 23:18:48,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-07-19 23:18:48,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 278 transitions. [2020-07-19 23:18:48,343 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 278 transitions. Word has length 57 [2020-07-19 23:18:48,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:48,343 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 278 transitions. [2020-07-19 23:18:48,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-19 23:18:48,343 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 278 transitions. [2020-07-19 23:18:48,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-19 23:18:48,345 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:48,345 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] [2020-07-19 23:18:48,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-19 23:18:48,345 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:48,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:48,346 INFO L82 PathProgramCache]: Analyzing trace with hash -527681510, now seen corresponding path program 1 times [2020-07-19 23:18:48,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:48,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332443744] [2020-07-19 23:18:48,347 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:48,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332443744] [2020-07-19 23:18:48,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:48,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-19 23:18:48,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395258521] [2020-07-19 23:18:48,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-19 23:18:48,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:48,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-19 23:18:48,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-07-19 23:18:48,595 INFO L87 Difference]: Start difference. First operand 214 states and 278 transitions. Second operand 11 states. [2020-07-19 23:18:49,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:49,504 INFO L93 Difference]: Finished difference Result 232 states and 299 transitions. [2020-07-19 23:18:49,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-19 23:18:49,505 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 57 [2020-07-19 23:18:49,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:49,507 INFO L225 Difference]: With dead ends: 232 [2020-07-19 23:18:49,507 INFO L226 Difference]: Without dead ends: 225 [2020-07-19 23:18:49,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2020-07-19 23:18:49,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-07-19 23:18:49,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 215. [2020-07-19 23:18:49,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-07-19 23:18:49,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 279 transitions. [2020-07-19 23:18:49,526 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 279 transitions. Word has length 57 [2020-07-19 23:18:49,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:49,527 INFO L479 AbstractCegarLoop]: Abstraction has 215 states and 279 transitions. [2020-07-19 23:18:49,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-19 23:18:49,527 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 279 transitions. [2020-07-19 23:18:49,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-19 23:18:49,528 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:49,528 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] [2020-07-19 23:18:49,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-19 23:18:49,529 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:49,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:49,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1045578754, now seen corresponding path program 1 times [2020-07-19 23:18:49,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:49,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141556629] [2020-07-19 23:18:49,530 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:49,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:49,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141556629] [2020-07-19 23:18:49,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:49,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 23:18:49,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933123843] [2020-07-19 23:18:49,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 23:18:49,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:49,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 23:18:49,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:18:49,714 INFO L87 Difference]: Start difference. First operand 215 states and 279 transitions. Second operand 8 states. [2020-07-19 23:18:50,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:50,333 INFO L93 Difference]: Finished difference Result 258 states and 327 transitions. [2020-07-19 23:18:50,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 23:18:50,334 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 60 [2020-07-19 23:18:50,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:50,336 INFO L225 Difference]: With dead ends: 258 [2020-07-19 23:18:50,337 INFO L226 Difference]: Without dead ends: 214 [2020-07-19 23:18:50,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:18:50,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-07-19 23:18:50,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-07-19 23:18:50,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-07-19 23:18:50,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 274 transitions. [2020-07-19 23:18:50,356 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 274 transitions. Word has length 60 [2020-07-19 23:18:50,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:50,357 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 274 transitions. [2020-07-19 23:18:50,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 23:18:50,357 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 274 transitions. [2020-07-19 23:18:50,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-19 23:18:50,358 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:50,358 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] [2020-07-19 23:18:50,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-19 23:18:50,359 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:50,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:50,359 INFO L82 PathProgramCache]: Analyzing trace with hash -930292561, now seen corresponding path program 1 times [2020-07-19 23:18:50,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:50,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8073377] [2020-07-19 23:18:50,360 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:50,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:50,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8073377] [2020-07-19 23:18:50,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:50,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-07-19 23:18:50,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707059406] [2020-07-19 23:18:50,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-19 23:18:50,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:50,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-19 23:18:50,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-19 23:18:50,724 INFO L87 Difference]: Start difference. First operand 214 states and 274 transitions. Second operand 15 states. [2020-07-19 23:18:51,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:51,947 INFO L93 Difference]: Finished difference Result 226 states and 286 transitions. [2020-07-19 23:18:51,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 23:18:51,948 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 61 [2020-07-19 23:18:51,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:51,950 INFO L225 Difference]: With dead ends: 226 [2020-07-19 23:18:51,950 INFO L226 Difference]: Without dead ends: 188 [2020-07-19 23:18:51,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-07-19 23:18:51,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-07-19 23:18:51,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-07-19 23:18:51,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-19 23:18:51,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 236 transitions. [2020-07-19 23:18:51,968 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 236 transitions. Word has length 61 [2020-07-19 23:18:51,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:51,969 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 236 transitions. [2020-07-19 23:18:51,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-19 23:18:51,969 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 236 transitions. [2020-07-19 23:18:51,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-19 23:18:51,971 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:51,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:18:51,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-19 23:18:51,971 INFO L427 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:51,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:51,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1127735086, now seen corresponding path program 1 times [2020-07-19 23:18:51,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:51,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859803211] [2020-07-19 23:18:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:52,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:52,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859803211] [2020-07-19 23:18:52,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:52,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-07-19 23:18:52,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566131769] [2020-07-19 23:18:52,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-19 23:18:52,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:52,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-19 23:18:52,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-19 23:18:52,311 INFO L87 Difference]: Start difference. First operand 188 states and 236 transitions. Second operand 15 states. [2020-07-19 23:18:53,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:53,252 INFO L93 Difference]: Finished difference Result 200 states and 248 transitions. [2020-07-19 23:18:53,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 23:18:53,252 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 56 [2020-07-19 23:18:53,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:53,253 INFO L225 Difference]: With dead ends: 200 [2020-07-19 23:18:53,254 INFO L226 Difference]: Without dead ends: 186 [2020-07-19 23:18:53,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-07-19 23:18:53,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-07-19 23:18:53,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2020-07-19 23:18:53,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-07-19 23:18:53,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 232 transitions. [2020-07-19 23:18:53,269 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 232 transitions. Word has length 56 [2020-07-19 23:18:53,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:53,269 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 232 transitions. [2020-07-19 23:18:53,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-19 23:18:53,270 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 232 transitions. [2020-07-19 23:18:53,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-19 23:18:53,271 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:53,271 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] [2020-07-19 23:18:53,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-19 23:18:53,271 INFO L427 AbstractCegarLoop]: === Iteration 18 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:53,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:53,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1554463583, now seen corresponding path program 1 times [2020-07-19 23:18:53,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:53,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985213715] [2020-07-19 23:18:53,272 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:53,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:53,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985213715] [2020-07-19 23:18:53,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:53,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-19 23:18:53,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952302137] [2020-07-19 23:18:53,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-19 23:18:53,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:53,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-19 23:18:53,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-07-19 23:18:53,578 INFO L87 Difference]: Start difference. First operand 186 states and 232 transitions. Second operand 13 states. [2020-07-19 23:18:55,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:55,048 INFO L93 Difference]: Finished difference Result 237 states and 286 transitions. [2020-07-19 23:18:55,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-19 23:18:55,048 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-07-19 23:18:55,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:55,050 INFO L225 Difference]: With dead ends: 237 [2020-07-19 23:18:55,050 INFO L226 Difference]: Without dead ends: 220 [2020-07-19 23:18:55,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2020-07-19 23:18:55,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-07-19 23:18:55,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 190. [2020-07-19 23:18:55,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-07-19 23:18:55,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 237 transitions. [2020-07-19 23:18:55,070 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 237 transitions. Word has length 55 [2020-07-19 23:18:55,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:55,070 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 237 transitions. [2020-07-19 23:18:55,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-19 23:18:55,070 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 237 transitions. [2020-07-19 23:18:55,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-19 23:18:55,071 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:55,071 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] [2020-07-19 23:18:55,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-19 23:18:55,072 INFO L427 AbstractCegarLoop]: === Iteration 19 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:55,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:55,072 INFO L82 PathProgramCache]: Analyzing trace with hash -725184292, now seen corresponding path program 1 times [2020-07-19 23:18:55,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:55,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345806807] [2020-07-19 23:18:55,075 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:55,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:55,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345806807] [2020-07-19 23:18:55,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:55,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-19 23:18:55,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820339857] [2020-07-19 23:18:55,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-19 23:18:55,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:55,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-19 23:18:55,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-07-19 23:18:55,332 INFO L87 Difference]: Start difference. First operand 190 states and 237 transitions. Second operand 14 states. [2020-07-19 23:18:56,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:56,305 INFO L93 Difference]: Finished difference Result 206 states and 253 transitions. [2020-07-19 23:18:56,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 23:18:56,305 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 55 [2020-07-19 23:18:56,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:56,307 INFO L225 Difference]: With dead ends: 206 [2020-07-19 23:18:56,307 INFO L226 Difference]: Without dead ends: 168 [2020-07-19 23:18:56,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-07-19 23:18:56,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-07-19 23:18:56,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2020-07-19 23:18:56,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-07-19 23:18:56,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 194 transitions. [2020-07-19 23:18:56,332 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 194 transitions. Word has length 55 [2020-07-19 23:18:56,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:56,333 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 194 transitions. [2020-07-19 23:18:56,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-19 23:18:56,333 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 194 transitions. [2020-07-19 23:18:56,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-19 23:18:56,335 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:56,335 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] [2020-07-19 23:18:56,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-19 23:18:56,336 INFO L427 AbstractCegarLoop]: === Iteration 20 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:56,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:56,336 INFO L82 PathProgramCache]: Analyzing trace with hash -639520605, now seen corresponding path program 1 times [2020-07-19 23:18:56,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:56,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45102086] [2020-07-19 23:18:56,337 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:56,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:18:56,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:18:56,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45102086] [2020-07-19 23:18:56,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:18:56,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-19 23:18:56,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742632170] [2020-07-19 23:18:56,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 23:18:56,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:18:56,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 23:18:56,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-07-19 23:18:56,574 INFO L87 Difference]: Start difference. First operand 168 states and 194 transitions. Second operand 10 states. [2020-07-19 23:18:56,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:18:56,938 INFO L93 Difference]: Finished difference Result 204 states and 235 transitions. [2020-07-19 23:18:56,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-19 23:18:56,939 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2020-07-19 23:18:56,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:18:56,940 INFO L225 Difference]: With dead ends: 204 [2020-07-19 23:18:56,941 INFO L226 Difference]: Without dead ends: 162 [2020-07-19 23:18:56,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-07-19 23:18:56,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-07-19 23:18:56,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-07-19 23:18:56,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-07-19 23:18:56,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 185 transitions. [2020-07-19 23:18:56,968 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 185 transitions. Word has length 58 [2020-07-19 23:18:56,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:18:56,968 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 185 transitions. [2020-07-19 23:18:56,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 23:18:56,969 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 185 transitions. [2020-07-19 23:18:56,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-19 23:18:56,972 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:18:56,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:18:56,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-19 23:18:56,973 INFO L427 AbstractCegarLoop]: === Iteration 21 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:18:56,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:18:56,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1656625880, now seen corresponding path program 1 times [2020-07-19 23:18:56,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:18:56,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495375770] [2020-07-19 23:18:56,974 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a9287ad [2020-07-19 23:18:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 23:18:57,004 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:18:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 23:18:57,027 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:18:57,102 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 23:18:57,102 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 23:18:57,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-07-19 23:18:57,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:18:57 BoogieIcfgContainer [2020-07-19 23:18:57,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 23:18:57,265 INFO L168 Benchmark]: Toolchain (without parser) took 28939.32 ms. Allocated memory was 137.9 MB in the beginning and 539.5 MB in the end (delta: 401.6 MB). Free memory was 101.2 MB in the beginning and 263.6 MB in the end (delta: -162.4 MB). Peak memory consumption was 239.2 MB. Max. memory is 7.1 GB. [2020-07-19 23:18:57,266 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 23:18:57,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.51 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.8 MB in the beginning and 175.8 MB in the end (delta: -75.0 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2020-07-19 23:18:57,267 INFO L168 Benchmark]: Boogie Preprocessor took 69.34 ms. Allocated memory is still 202.9 MB. Free memory was 175.8 MB in the beginning and 172.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-07-19 23:18:57,268 INFO L168 Benchmark]: RCFGBuilder took 1041.90 ms. Allocated memory is still 202.9 MB. Free memory was 172.3 MB in the beginning and 101.3 MB in the end (delta: 71.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. [2020-07-19 23:18:57,268 INFO L168 Benchmark]: TraceAbstraction took 27201.46 ms. Allocated memory was 202.9 MB in the beginning and 539.5 MB in the end (delta: 336.6 MB). Free memory was 100.6 MB in the beginning and 263.6 MB in the end (delta: -162.9 MB). Peak memory consumption was 173.7 MB. Max. memory is 7.1 GB. [2020-07-19 23:18:57,271 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 620.51 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.8 MB in the beginning and 175.8 MB in the end (delta: -75.0 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.34 ms. Allocated memory is still 202.9 MB. Free memory was 175.8 MB in the beginning and 172.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1041.90 ms. Allocated memory is still 202.9 MB. Free memory was 172.3 MB in the beginning and 101.3 MB in the end (delta: 71.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27201.46 ms. Allocated memory was 202.9 MB in the beginning and 539.5 MB in the end (delta: 336.6 MB). Free memory was 100.6 MB in the beginning and 263.6 MB in the end (delta: -162.9 MB). Peak memory consumption was 173.7 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 ; VAL [\old(compFptr)=21, \old(compRegistered)=13, \old(customIrp)=16, \old(DC)=9, \old(DevicePowerState)=22, \old(Executive)=14, \old(IPC)=10, \old(KernelMode)=26, \old(lowerDriverReturn)=24, \old(MPR1)=20, \old(MPR3)=18, \old(myStatus)=23, \old(NP)=15, \old(pended)=25, \old(s)=11, \old(setEventCalled)=19, \old(SKIP1)=17, \old(SKIP2)=12, \old(UNLOADED)=8, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, UNLOADED=0] [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 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=1, devobj=2, Executive=0, IPC=0, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=-2, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, UNLOADED=0] [L324] CALL _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=1, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, UNLOADED=0] [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 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L324] RET _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [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 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L335] COND FALSE !(irp_choice == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L340] CALL stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L45] s = NP [L46] pended = 0 [L47] compFptr = 0 [L48] compRegistered = 0 [L49] lowerDriverReturn = 0 [L50] setEventCalled = 0 [L51] customIrp = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L340] RET stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [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 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L386] CALL, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [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 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L104] COND FALSE !(irpStack__MinorFunction == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L107] COND FALSE !(irpStack__MinorFunction == 23) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L110] COND TRUE irpStack__MinorFunction == 2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L234] devExt__Removed = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L235] COND TRUE s == NP [L236] s = SKIP1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L243] Irp__CurrentLocation ++ [L244] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L245] CALL IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L481] int returnVal2 ; [L482] int compRetStatus ; [L483] int lcontext = __VERIFIER_nondet_int() ; [L484] long long __cil_tmp7 ; VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L487] COND FALSE !(\read(compRegistered)) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [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 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-5, tmp_ndt_7=1, UNLOADED=0] [L516] returnVal2 = -1073741823 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-5, tmp_ndt_7=1, UNLOADED=0] [L526] COND FALSE !(s == NP) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-5, tmp_ndt_7=1, UNLOADED=0] [L530] COND FALSE !(s == MPR1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-5, tmp_ndt_7=1, UNLOADED=0] [L539] COND TRUE s == SKIP1 [L540] s = SKIP2 [L541] lowerDriverReturn = returnVal2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-5, tmp_ndt_7=1, UNLOADED=0] [L549] return (returnVal2); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=-1073741823, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-5, tmp_ndt_7=1, UNLOADED=0] [L245] RET IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IofCallDriver(devExt__TopOfStack, Irp)=-1073741823, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L246] status = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L288] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=2, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=2, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L386] RET, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KbFilter_PnP(devobj, pirp)=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L386] status = KbFilter_PnP(devobj, pirp) [L410] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L418] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L426] COND TRUE s != UNLOADED VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L427] COND TRUE status != -1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L428] COND FALSE !(s != SKIP2) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L438] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L445] COND FALSE !(s == DC) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L450] COND TRUE status != lowerDriverReturn VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=2, Executive=0, IPC=7, irp=-2, irp_choice=1, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=-3, tmp_ndt_3=3, UNLOADED=0] [L451] CALL errorFn() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1011] __VERIFIER_error() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 18 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.9s, OverallIterations: 21, TraceHistogramMax: 1, AutomataDifference: 20.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4633 SDtfs, 6120 SDslu, 7832 SDs, 0 SdLazy, 16044 SolverSat, 1268 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 406 GetRequests, 175 SyntacticMatches, 4 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred 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: 0.5s AutomataMinimizationTime, 20 MinimizatonAttempts, 275 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 1029 NumberOfCodeBlocks, 1029 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 953 ConstructedInterpolants, 0 QuantifiedInterpolants, 212466 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...