./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4bf978f501147b566a0f6f3e817c934f24352e71 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4bf978f501147b566a0f6f3e817c934f24352e71 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 19:11:01,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 19:11:01,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 19:11:01,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 19:11:01,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 19:11:01,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 19:11:01,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 19:11:01,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 19:11:01,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 19:11:01,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 19:11:01,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 19:11:01,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 19:11:01,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 19:11:01,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 19:11:01,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 19:11:01,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 19:11:01,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 19:11:01,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 19:11:01,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 19:11:01,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 19:11:01,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 19:11:01,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 19:11:01,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 19:11:01,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 19:11:01,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 19:11:01,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 19:11:01,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 19:11:01,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 19:11:01,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 19:11:01,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 19:11:01,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 19:11:01,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 19:11:01,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 19:11:01,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 19:11:01,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 19:11:01,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 19:11:01,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 19:11:01,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 19:11:01,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 19:11:01,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 19:11:01,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 19:11:01,148 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-30 19:11:01,190 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 19:11:01,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 19:11:01,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 19:11:01,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 19:11:01,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 19:11:01,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 19:11:01,199 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 19:11:01,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 19:11:01,199 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 19:11:01,200 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 19:11:01,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 19:11:01,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 19:11:01,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 19:11:01,201 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 19:11:01,201 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 19:11:01,202 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 19:11:01,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 19:11:01,202 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 19:11:01,202 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 19:11:01,202 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 19:11:01,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 19:11:01,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 19:11:01,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 19:11:01,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 19:11:01,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 19:11:01,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 19:11:01,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 19:11:01,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 19:11:01,204 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 19:11:01,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bf978f501147b566a0f6f3e817c934f24352e71 [2021-08-30 19:11:01,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 19:11:01,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 19:11:01,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 19:11:01,571 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 19:11:01,572 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 19:11:01,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2021-08-30 19:11:01,633 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e39606b3/65f2e495ea87465582e42690c196619f/FLAG5ca681bb9 [2021-08-30 19:11:02,060 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 19:11:02,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2021-08-30 19:11:02,080 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e39606b3/65f2e495ea87465582e42690c196619f/FLAG5ca681bb9 [2021-08-30 19:11:02,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e39606b3/65f2e495ea87465582e42690c196619f [2021-08-30 19:11:02,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 19:11:02,106 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 19:11:02,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 19:11:02,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 19:11:02,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 19:11:02,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 07:11:02" (1/1) ... [2021-08-30 19:11:02,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3a9367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:02, skipping insertion in model container [2021-08-30 19:11:02,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 07:11:02" (1/1) ... [2021-08-30 19:11:02,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 19:11:02,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 19:11:02,451 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2021-08-30 19:11:02,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 19:11:02,468 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 19:11:02,554 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2021-08-30 19:11:02,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 19:11:02,572 INFO L208 MainTranslator]: Completed translation [2021-08-30 19:11:02,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:02 WrapperNode [2021-08-30 19:11:02,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 19:11:02,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 19:11:02,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 19:11:02,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 19:11:02,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:02" (1/1) ... [2021-08-30 19:11:02,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:02" (1/1) ... [2021-08-30 19:11:02,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:02" (1/1) ... [2021-08-30 19:11:02,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:02" (1/1) ... [2021-08-30 19:11:02,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:02" (1/1) ... [2021-08-30 19:11:02,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:02" (1/1) ... [2021-08-30 19:11:02,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:02" (1/1) ... [2021-08-30 19:11:02,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 19:11:02,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 19:11:02,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 19:11:02,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 19:11:02,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:02" (1/1) ... [2021-08-30 19:11:02,661 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 19:11:02,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 19:11:02,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-30 19:11:02,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-30 19:11:02,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-30 19:11:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 19:11:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-08-30 19:11:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2021-08-30 19:11:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2021-08-30 19:11:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2021-08-30 19:11:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-30 19:11:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-08-30 19:11:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-08-30 19:11:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-08-30 19:11:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2021-08-30 19:11:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-08-30 19:11:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2021-08-30 19:11:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2021-08-30 19:11:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2021-08-30 19:11:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2021-08-30 19:11:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2021-08-30 19:11:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2021-08-30 19:11:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-08-30 19:11:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-30 19:11:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-08-30 19:11:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-08-30 19:11:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 19:11:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-08-30 19:11:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-30 19:11:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2021-08-30 19:11:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2021-08-30 19:11:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-08-30 19:11:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2021-08-30 19:11:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-08-30 19:11:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2021-08-30 19:11:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2021-08-30 19:11:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2021-08-30 19:11:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2021-08-30 19:11:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2021-08-30 19:11:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2021-08-30 19:11:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-08-30 19:11:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-08-30 19:11:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2021-08-30 19:11:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2021-08-30 19:11:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-30 19:11:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-08-30 19:11:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-30 19:11:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-30 19:11:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 19:11:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-30 19:11:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-30 19:11:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-30 19:11:02,945 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 19:11:02,989 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-08-30 19:11:02,989 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-08-30 19:11:02,992 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 19:11:03,027 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-08-30 19:11:03,027 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2021-08-30 19:11:03,051 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 19:11:03,054 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-08-30 19:11:03,054 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-08-30 19:11:03,057 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 19:11:03,085 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2021-08-30 19:11:03,085 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2021-08-30 19:11:03,087 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 19:11:03,092 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2021-08-30 19:11:03,093 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2021-08-30 19:11:03,095 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 19:11:03,100 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-08-30 19:11:03,100 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2021-08-30 19:11:03,133 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 19:11:03,135 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-30 19:11:03,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 07:11:03 BoogieIcfgContainer [2021-08-30 19:11:03,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 19:11:03,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 19:11:03,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 19:11:03,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 19:11:03,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 07:11:02" (1/3) ... [2021-08-30 19:11:03,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422637a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 07:11:03, skipping insertion in model container [2021-08-30 19:11:03,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:02" (2/3) ... [2021-08-30 19:11:03,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422637a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 07:11:03, skipping insertion in model container [2021-08-30 19:11:03,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 07:11:03" (3/3) ... [2021-08-30 19:11:03,145 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2021-08-30 19:11:03,158 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 19:11:03,159 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-30 19:11:03,192 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 19:11:03,198 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-30 19:11:03,198 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-30 19:11:03,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 182 states have (on average 1.565934065934066) internal successors, (285), 201 states have internal predecessors, (285), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2021-08-30 19:11:03,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-30 19:11:03,221 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:03,222 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 19:11:03,222 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:03,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:03,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1216173165, now seen corresponding path program 1 times [2021-08-30 19:11:03,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:03,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288894234] [2021-08-30 19:11:03,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:03,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:03,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:03,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:03,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:03,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:03,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288894234] [2021-08-30 19:11:03,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288894234] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:03,693 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:03,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 19:11:03,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400399628] [2021-08-30 19:11:03,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 19:11:03,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:03,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 19:11:03,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-30 19:11:03,733 INFO L87 Difference]: Start difference. First operand has 241 states, 182 states have (on average 1.565934065934066) internal successors, (285), 201 states have internal predecessors, (285), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 19:11:04,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:04,472 INFO L93 Difference]: Finished difference Result 266 states and 385 transitions. [2021-08-30 19:11:04,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 19:11:04,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2021-08-30 19:11:04,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:04,482 INFO L225 Difference]: With dead ends: 266 [2021-08-30 19:11:04,483 INFO L226 Difference]: Without dead ends: 259 [2021-08-30 19:11:04,484 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 143.26ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-30 19:11:04,487 INFO L928 BasicCegarLoop]: 65 mSDtfsCounter, 312 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 536.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.76ms SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 644.94ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:04,488 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 84 Invalid, 528 Unknown, 0 Unchecked, 15.76ms Time], IncrementalHoareTripleChecker [80 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 644.94ms Time] [2021-08-30 19:11:04,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-08-30 19:11:04,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 231. [2021-08-30 19:11:04,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 176 states have (on average 1.5) internal successors, (264), 192 states have internal predecessors, (264), 39 states have call successors, (39), 17 states have call predecessors, (39), 15 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2021-08-30 19:11:04,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 327 transitions. [2021-08-30 19:11:04,538 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 327 transitions. Word has length 15 [2021-08-30 19:11:04,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:04,538 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 327 transitions. [2021-08-30 19:11:04,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 19:11:04,539 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 327 transitions. [2021-08-30 19:11:04,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-30 19:11:04,539 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:04,539 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 19:11:04,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-30 19:11:04,540 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:04,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:04,541 INFO L82 PathProgramCache]: Analyzing trace with hash -650681863, now seen corresponding path program 1 times [2021-08-30 19:11:04,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:04,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146390076] [2021-08-30 19:11:04,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:04,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:04,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:04,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:04,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:04,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:04,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146390076] [2021-08-30 19:11:04,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146390076] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:04,753 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:04,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-30 19:11:04,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506435283] [2021-08-30 19:11:04,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 19:11:04,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:04,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 19:11:04,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-30 19:11:04,756 INFO L87 Difference]: Start difference. First operand 231 states and 327 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-30 19:11:05,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:05,492 INFO L93 Difference]: Finished difference Result 259 states and 367 transitions. [2021-08-30 19:11:05,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 19:11:05,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2021-08-30 19:11:05,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:05,495 INFO L225 Difference]: With dead ends: 259 [2021-08-30 19:11:05,495 INFO L226 Difference]: Without dead ends: 259 [2021-08-30 19:11:05,495 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 99.71ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-30 19:11:05,496 INFO L928 BasicCegarLoop]: 64 mSDtfsCounter, 170 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 588.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.80ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 688.29ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:05,497 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 157 Invalid, 853 Unknown, 0 Unchecked, 8.80ms Time], IncrementalHoareTripleChecker [41 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 688.29ms Time] [2021-08-30 19:11:05,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-08-30 19:11:05,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 231. [2021-08-30 19:11:05,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 176 states have (on average 1.4943181818181819) internal successors, (263), 192 states have internal predecessors, (263), 39 states have call successors, (39), 17 states have call predecessors, (39), 15 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2021-08-30 19:11:05,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 326 transitions. [2021-08-30 19:11:05,511 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 326 transitions. Word has length 20 [2021-08-30 19:11:05,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:05,512 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 326 transitions. [2021-08-30 19:11:05,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-30 19:11:05,512 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 326 transitions. [2021-08-30 19:11:05,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-30 19:11:05,513 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:05,513 INFO L513 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] [2021-08-30 19:11:05,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-30 19:11:05,513 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:05,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:05,514 INFO L82 PathProgramCache]: Analyzing trace with hash 634702516, now seen corresponding path program 1 times [2021-08-30 19:11:05,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:05,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749527059] [2021-08-30 19:11:05,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:05,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:05,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:05,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:05,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:05,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:05,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:05,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749527059] [2021-08-30 19:11:05,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749527059] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:05,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:05,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-30 19:11:05,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379791430] [2021-08-30 19:11:05,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 19:11:05,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:05,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 19:11:05,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-30 19:11:05,693 INFO L87 Difference]: Start difference. First operand 231 states and 326 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 19:11:06,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:06,945 INFO L93 Difference]: Finished difference Result 350 states and 478 transitions. [2021-08-30 19:11:06,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 19:11:06,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2021-08-30 19:11:06,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:06,948 INFO L225 Difference]: With dead ends: 350 [2021-08-30 19:11:06,949 INFO L226 Difference]: Without dead ends: 349 [2021-08-30 19:11:06,949 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 163.88ms TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-08-30 19:11:06,950 INFO L928 BasicCegarLoop]: 78 mSDtfsCounter, 384 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 944.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.29ms SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1122.41ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:06,950 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 133 Invalid, 1264 Unknown, 0 Unchecked, 12.29ms Time], IncrementalHoareTripleChecker [62 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 1122.41ms Time] [2021-08-30 19:11:06,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-08-30 19:11:06,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 304. [2021-08-30 19:11:06,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 239 states have (on average 1.393305439330544) internal successors, (333), 243 states have internal predecessors, (333), 38 states have call successors, (38), 23 states have call predecessors, (38), 26 states have return successors, (44), 40 states have call predecessors, (44), 29 states have call successors, (44) [2021-08-30 19:11:06,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 415 transitions. [2021-08-30 19:11:06,974 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 415 transitions. Word has length 28 [2021-08-30 19:11:06,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:06,976 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 415 transitions. [2021-08-30 19:11:06,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 19:11:06,976 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 415 transitions. [2021-08-30 19:11:06,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-30 19:11:06,977 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:06,977 INFO L513 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] [2021-08-30 19:11:06,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-30 19:11:06,977 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:06,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:06,978 INFO L82 PathProgramCache]: Analyzing trace with hash 2054471313, now seen corresponding path program 1 times [2021-08-30 19:11:06,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:06,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288021155] [2021-08-30 19:11:06,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:06,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:07,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:07,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:07,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:07,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:07,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:07,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288021155] [2021-08-30 19:11:07,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288021155] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:07,146 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:07,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-30 19:11:07,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349521433] [2021-08-30 19:11:07,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 19:11:07,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:07,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 19:11:07,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-30 19:11:07,148 INFO L87 Difference]: Start difference. First operand 304 states and 415 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 19:11:08,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:08,020 INFO L93 Difference]: Finished difference Result 368 states and 494 transitions. [2021-08-30 19:11:08,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 19:11:08,021 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2021-08-30 19:11:08,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:08,024 INFO L225 Difference]: With dead ends: 368 [2021-08-30 19:11:08,024 INFO L226 Difference]: Without dead ends: 368 [2021-08-30 19:11:08,024 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 178.33ms TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-08-30 19:11:08,026 INFO L928 BasicCegarLoop]: 51 mSDtfsCounter, 408 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 644.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.38ms SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 749.21ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:08,026 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 73 Invalid, 856 Unknown, 0 Unchecked, 9.38ms Time], IncrementalHoareTripleChecker [66 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 749.21ms Time] [2021-08-30 19:11:08,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-08-30 19:11:08,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 344. [2021-08-30 19:11:08,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 280 states have (on average 1.3857142857142857) internal successors, (388), 282 states have internal predecessors, (388), 34 states have call successors, (34), 23 states have call predecessors, (34), 29 states have return successors, (44), 39 states have call predecessors, (44), 27 states have call successors, (44) [2021-08-30 19:11:08,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 466 transitions. [2021-08-30 19:11:08,041 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 466 transitions. Word has length 28 [2021-08-30 19:11:08,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:08,042 INFO L470 AbstractCegarLoop]: Abstraction has 344 states and 466 transitions. [2021-08-30 19:11:08,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 19:11:08,042 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 466 transitions. [2021-08-30 19:11:08,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-30 19:11:08,044 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:08,044 INFO L513 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] [2021-08-30 19:11:08,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-30 19:11:08,044 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:08,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:08,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1351706538, now seen corresponding path program 1 times [2021-08-30 19:11:08,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:08,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445717632] [2021-08-30 19:11:08,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:08,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:08,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:08,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:08,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:08,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:08,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:08,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445717632] [2021-08-30 19:11:08,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445717632] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:08,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:08,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-30 19:11:08,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953741047] [2021-08-30 19:11:08,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 19:11:08,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:08,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 19:11:08,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-30 19:11:08,234 INFO L87 Difference]: Start difference. First operand 344 states and 466 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 19:11:08,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:08,903 INFO L93 Difference]: Finished difference Result 343 states and 463 transitions. [2021-08-30 19:11:08,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 19:11:08,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2021-08-30 19:11:08,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:08,905 INFO L225 Difference]: With dead ends: 343 [2021-08-30 19:11:08,905 INFO L226 Difference]: Without dead ends: 343 [2021-08-30 19:11:08,905 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 131.54ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-30 19:11:08,906 INFO L928 BasicCegarLoop]: 51 mSDtfsCounter, 341 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 484.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.73ms SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 588.23ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:08,907 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 103 Invalid, 829 Unknown, 0 Unchecked, 6.73ms Time], IncrementalHoareTripleChecker [62 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 588.23ms Time] [2021-08-30 19:11:08,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2021-08-30 19:11:08,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2021-08-30 19:11:08,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 280 states have (on average 1.3785714285714286) internal successors, (386), 281 states have internal predecessors, (386), 33 states have call successors, (33), 23 states have call predecessors, (33), 29 states have return successors, (44), 39 states have call predecessors, (44), 27 states have call successors, (44) [2021-08-30 19:11:08,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 463 transitions. [2021-08-30 19:11:08,919 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 463 transitions. Word has length 38 [2021-08-30 19:11:08,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:08,919 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 463 transitions. [2021-08-30 19:11:08,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 19:11:08,920 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 463 transitions. [2021-08-30 19:11:08,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-30 19:11:08,922 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:08,923 INFO L513 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] [2021-08-30 19:11:08,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-30 19:11:08,923 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:08,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:08,924 INFO L82 PathProgramCache]: Analyzing trace with hash 136406623, now seen corresponding path program 1 times [2021-08-30 19:11:08,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:08,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177152154] [2021-08-30 19:11:08,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:08,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:09,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:09,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:09,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:09,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-08-30 19:11:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:09,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:09,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:09,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177152154] [2021-08-30 19:11:09,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177152154] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:09,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:09,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-30 19:11:09,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963980988] [2021-08-30 19:11:09,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 19:11:09,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:09,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 19:11:09,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-30 19:11:09,082 INFO L87 Difference]: Start difference. First operand 343 states and 463 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 19:11:09,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:09,960 INFO L93 Difference]: Finished difference Result 325 states and 431 transitions. [2021-08-30 19:11:09,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-30 19:11:09,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2021-08-30 19:11:09,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:09,962 INFO L225 Difference]: With dead ends: 325 [2021-08-30 19:11:09,962 INFO L226 Difference]: Without dead ends: 325 [2021-08-30 19:11:09,962 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 233.40ms TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-08-30 19:11:09,963 INFO L928 BasicCegarLoop]: 47 mSDtfsCounter, 605 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 574.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.26ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 695.67ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:09,964 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 66 Invalid, 1080 Unknown, 0 Unchecked, 7.26ms Time], IncrementalHoareTripleChecker [91 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 695.67ms Time] [2021-08-30 19:11:09,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-08-30 19:11:09,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 304. [2021-08-30 19:11:09,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 246 states have (on average 1.3699186991869918) internal successors, (337), 247 states have internal predecessors, (337), 30 states have call successors, (30), 21 states have call predecessors, (30), 27 states have return successors, (39), 36 states have call predecessors, (39), 24 states have call successors, (39) [2021-08-30 19:11:09,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 406 transitions. [2021-08-30 19:11:09,973 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 406 transitions. Word has length 46 [2021-08-30 19:11:09,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:09,974 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 406 transitions. [2021-08-30 19:11:09,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-30 19:11:09,974 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 406 transitions. [2021-08-30 19:11:09,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-08-30 19:11:09,977 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:09,979 INFO L513 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] [2021-08-30 19:11:09,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-30 19:11:09,979 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:09,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:09,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1699015048, now seen corresponding path program 1 times [2021-08-30 19:11:09,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:09,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526232964] [2021-08-30 19:11:09,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:09,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:10,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:10,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:10,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:10,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-08-30 19:11:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:10,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-08-30 19:11:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:10,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:10,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:10,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526232964] [2021-08-30 19:11:10,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526232964] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:10,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:10,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-30 19:11:10,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439937998] [2021-08-30 19:11:10,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-30 19:11:10,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:10,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-30 19:11:10,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-08-30 19:11:10,244 INFO L87 Difference]: Start difference. First operand 304 states and 406 transitions. Second operand has 12 states, 12 states have (on average 2.75) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 19:11:11,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:11,441 INFO L93 Difference]: Finished difference Result 326 states and 430 transitions. [2021-08-30 19:11:11,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-30 19:11:11,442 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2021-08-30 19:11:11,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:11,448 INFO L225 Difference]: With dead ends: 326 [2021-08-30 19:11:11,448 INFO L226 Difference]: Without dead ends: 325 [2021-08-30 19:11:11,448 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 430.08ms TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2021-08-30 19:11:11,452 INFO L928 BasicCegarLoop]: 44 mSDtfsCounter, 791 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 729.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.98ms SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 853.10ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:11,452 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [793 Valid, 82 Invalid, 1280 Unknown, 0 Unchecked, 8.98ms Time], IncrementalHoareTripleChecker [160 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 853.10ms Time] [2021-08-30 19:11:11,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-08-30 19:11:11,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 320. [2021-08-30 19:11:11,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 260 states have (on average 1.3615384615384616) internal successors, (354), 260 states have internal predecessors, (354), 30 states have call successors, (30), 21 states have call predecessors, (30), 29 states have return successors, (41), 38 states have call predecessors, (41), 24 states have call successors, (41) [2021-08-30 19:11:11,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 425 transitions. [2021-08-30 19:11:11,472 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 425 transitions. Word has length 45 [2021-08-30 19:11:11,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:11,472 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 425 transitions. [2021-08-30 19:11:11,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 19:11:11,472 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 425 transitions. [2021-08-30 19:11:11,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-30 19:11:11,474 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:11,474 INFO L513 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] [2021-08-30 19:11:11,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-30 19:11:11,474 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:11,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:11,475 INFO L82 PathProgramCache]: Analyzing trace with hash 750548217, now seen corresponding path program 1 times [2021-08-30 19:11:11,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:11,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266126105] [2021-08-30 19:11:11,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:11,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:11,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:11,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:11,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:11,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-08-30 19:11:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:11,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-08-30 19:11:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:11,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:11,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:11,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266126105] [2021-08-30 19:11:11,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266126105] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:11,733 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:11,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-30 19:11:11,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274455058] [2021-08-30 19:11:11,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-30 19:11:11,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:11,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-30 19:11:11,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-08-30 19:11:11,735 INFO L87 Difference]: Start difference. First operand 320 states and 425 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 19:11:12,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:12,874 INFO L93 Difference]: Finished difference Result 325 states and 428 transitions. [2021-08-30 19:11:12,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-30 19:11:12,875 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2021-08-30 19:11:12,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:12,877 INFO L225 Difference]: With dead ends: 325 [2021-08-30 19:11:12,877 INFO L226 Difference]: Without dead ends: 325 [2021-08-30 19:11:12,877 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 420.40ms TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2021-08-30 19:11:12,879 INFO L928 BasicCegarLoop]: 44 mSDtfsCounter, 647 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 658.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.91ms SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 817.43ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:12,879 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [649 Valid, 84 Invalid, 1529 Unknown, 0 Unchecked, 7.91ms Time], IncrementalHoareTripleChecker [109 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 817.43ms Time] [2021-08-30 19:11:12,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-08-30 19:11:12,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 320. [2021-08-30 19:11:12,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 260 states have (on average 1.3576923076923078) internal successors, (353), 260 states have internal predecessors, (353), 30 states have call successors, (30), 21 states have call predecessors, (30), 29 states have return successors, (41), 38 states have call predecessors, (41), 24 states have call successors, (41) [2021-08-30 19:11:12,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 424 transitions. [2021-08-30 19:11:12,887 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 424 transitions. Word has length 46 [2021-08-30 19:11:12,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:12,888 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 424 transitions. [2021-08-30 19:11:12,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 7 states have internal predecessors, (34), 3 states have call successors, (7), 7 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 19:11:12,888 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 424 transitions. [2021-08-30 19:11:12,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-08-30 19:11:12,889 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:12,889 INFO L513 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] [2021-08-30 19:11:12,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-30 19:11:12,890 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:12,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:12,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1580928350, now seen corresponding path program 1 times [2021-08-30 19:11:12,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:12,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178303162] [2021-08-30 19:11:12,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:12,891 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:12,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:12,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:13,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:13,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-08-30 19:11:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:13,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-08-30 19:11:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:13,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:13,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:13,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178303162] [2021-08-30 19:11:13,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178303162] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:13,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:13,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-30 19:11:13,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939362004] [2021-08-30 19:11:13,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 19:11:13,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:13,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 19:11:13,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-30 19:11:13,048 INFO L87 Difference]: Start difference. First operand 320 states and 424 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 7 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-30 19:11:13,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:13,748 INFO L93 Difference]: Finished difference Result 314 states and 412 transitions. [2021-08-30 19:11:13,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-30 19:11:13,748 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 7 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 47 [2021-08-30 19:11:13,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:13,750 INFO L225 Difference]: With dead ends: 314 [2021-08-30 19:11:13,750 INFO L226 Difference]: Without dead ends: 272 [2021-08-30 19:11:13,750 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 182.44ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-08-30 19:11:13,751 INFO L928 BasicCegarLoop]: 42 mSDtfsCounter, 724 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 484.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.73ms SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 584.26ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:13,751 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [724 Valid, 73 Invalid, 888 Unknown, 0 Unchecked, 4.73ms Time], IncrementalHoareTripleChecker [119 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 584.26ms Time] [2021-08-30 19:11:13,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-08-30 19:11:13,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 242. [2021-08-30 19:11:13,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 198 states have (on average 1.378787878787879) internal successors, (273), 201 states have internal predecessors, (273), 27 states have call successors, (27), 19 states have call predecessors, (27), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-30 19:11:13,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 321 transitions. [2021-08-30 19:11:13,758 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 321 transitions. Word has length 47 [2021-08-30 19:11:13,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:13,759 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 321 transitions. [2021-08-30 19:11:13,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 7 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-30 19:11:13,759 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 321 transitions. [2021-08-30 19:11:13,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-30 19:11:13,760 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:13,760 INFO L513 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] [2021-08-30 19:11:13,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-30 19:11:13,760 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:13,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:13,761 INFO L82 PathProgramCache]: Analyzing trace with hash 479956528, now seen corresponding path program 1 times [2021-08-30 19:11:13,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:13,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104666704] [2021-08-30 19:11:13,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:13,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:13,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:13,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:13,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:13,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-08-30 19:11:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:13,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-30 19:11:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:13,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-08-30 19:11:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:13,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:13,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:13,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104666704] [2021-08-30 19:11:13,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104666704] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:13,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:13,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-30 19:11:13,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396030900] [2021-08-30 19:11:13,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 19:11:13,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:13,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 19:11:13,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-30 19:11:13,924 INFO L87 Difference]: Start difference. First operand 242 states and 321 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-30 19:11:14,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:14,694 INFO L93 Difference]: Finished difference Result 240 states and 317 transitions. [2021-08-30 19:11:14,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-30 19:11:14,695 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 53 [2021-08-30 19:11:14,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:14,696 INFO L225 Difference]: With dead ends: 240 [2021-08-30 19:11:14,696 INFO L226 Difference]: Without dead ends: 240 [2021-08-30 19:11:14,697 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 179.66ms TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2021-08-30 19:11:14,697 INFO L928 BasicCegarLoop]: 36 mSDtfsCounter, 195 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 563.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.35ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 668.90ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:14,698 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 73 Invalid, 1001 Unknown, 0 Unchecked, 6.35ms Time], IncrementalHoareTripleChecker [54 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 668.90ms Time] [2021-08-30 19:11:14,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-08-30 19:11:14,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2021-08-30 19:11:14,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 197 states have (on average 1.3705583756345177) internal successors, (270), 199 states have internal predecessors, (270), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-30 19:11:14,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 317 transitions. [2021-08-30 19:11:14,706 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 317 transitions. Word has length 53 [2021-08-30 19:11:14,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:14,706 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 317 transitions. [2021-08-30 19:11:14,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-30 19:11:14,707 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 317 transitions. [2021-08-30 19:11:14,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-30 19:11:14,707 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:14,708 INFO L513 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] [2021-08-30 19:11:14,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-30 19:11:14,709 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:14,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:14,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1828872474, now seen corresponding path program 1 times [2021-08-30 19:11:14,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:14,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910854789] [2021-08-30 19:11:14,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:14,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:14,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:14,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:14,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:14,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-30 19:11:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:14,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-08-30 19:11:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:14,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:14,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:14,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910854789] [2021-08-30 19:11:14,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910854789] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:14,990 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:14,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-30 19:11:14,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844228835] [2021-08-30 19:11:14,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-30 19:11:14,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:14,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-30 19:11:14,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-08-30 19:11:14,992 INFO L87 Difference]: Start difference. First operand 240 states and 317 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-30 19:11:15,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:15,986 INFO L93 Difference]: Finished difference Result 243 states and 317 transitions. [2021-08-30 19:11:15,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-30 19:11:15,986 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 51 [2021-08-30 19:11:15,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:15,987 INFO L225 Difference]: With dead ends: 243 [2021-08-30 19:11:15,987 INFO L226 Difference]: Without dead ends: 243 [2021-08-30 19:11:15,988 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 491.60ms TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2021-08-30 19:11:15,988 INFO L928 BasicCegarLoop]: 35 mSDtfsCounter, 797 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 512.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.93ms SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 621.52ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:15,989 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [802 Valid, 45 Invalid, 1353 Unknown, 0 Unchecked, 5.93ms Time], IncrementalHoareTripleChecker [165 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 621.52ms Time] [2021-08-30 19:11:15,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-08-30 19:11:15,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 240. [2021-08-30 19:11:15,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 197 states have (on average 1.3604060913705585) internal successors, (268), 199 states have internal predecessors, (268), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-30 19:11:15,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 315 transitions. [2021-08-30 19:11:15,997 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 315 transitions. Word has length 51 [2021-08-30 19:11:15,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:15,997 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 315 transitions. [2021-08-30 19:11:15,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-30 19:11:15,997 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 315 transitions. [2021-08-30 19:11:15,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-30 19:11:15,999 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:15,999 INFO L513 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] [2021-08-30 19:11:15,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-30 19:11:15,999 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:15,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:16,000 INFO L82 PathProgramCache]: Analyzing trace with hash -2141770251, now seen corresponding path program 1 times [2021-08-30 19:11:16,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:16,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258909747] [2021-08-30 19:11:16,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:16,000 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:16,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:16,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:16,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:16,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-30 19:11:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:16,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-08-30 19:11:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:16,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:16,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:16,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258909747] [2021-08-30 19:11:16,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258909747] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:16,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:16,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-30 19:11:16,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034526851] [2021-08-30 19:11:16,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 19:11:16,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:16,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 19:11:16,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-30 19:11:16,157 INFO L87 Difference]: Start difference. First operand 240 states and 315 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-30 19:11:16,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:16,860 INFO L93 Difference]: Finished difference Result 253 states and 329 transitions. [2021-08-30 19:11:16,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-30 19:11:16,861 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 53 [2021-08-30 19:11:16,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:16,863 INFO L225 Difference]: With dead ends: 253 [2021-08-30 19:11:16,863 INFO L226 Difference]: Without dead ends: 253 [2021-08-30 19:11:16,863 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 213.86ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-30 19:11:16,864 INFO L928 BasicCegarLoop]: 45 mSDtfsCounter, 160 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 465.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.09ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 553.59ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:16,864 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 177 Invalid, 1047 Unknown, 0 Unchecked, 5.09ms Time], IncrementalHoareTripleChecker [32 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 553.59ms Time] [2021-08-30 19:11:16,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-08-30 19:11:16,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 243. [2021-08-30 19:11:16,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 200 states have (on average 1.36) internal successors, (272), 202 states have internal predecessors, (272), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-30 19:11:16,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 319 transitions. [2021-08-30 19:11:16,871 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 319 transitions. Word has length 53 [2021-08-30 19:11:16,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:16,872 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 319 transitions. [2021-08-30 19:11:16,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-30 19:11:16,872 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 319 transitions. [2021-08-30 19:11:16,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-30 19:11:16,873 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:16,873 INFO L513 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] [2021-08-30 19:11:16,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-30 19:11:16,873 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:16,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:16,874 INFO L82 PathProgramCache]: Analyzing trace with hash 159052339, now seen corresponding path program 1 times [2021-08-30 19:11:16,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:16,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176203741] [2021-08-30 19:11:16,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:16,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:17,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:17,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:17,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:17,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-30 19:11:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:17,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-08-30 19:11:17,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:17,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:17,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:17,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176203741] [2021-08-30 19:11:17,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176203741] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:17,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:17,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-30 19:11:17,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697077390] [2021-08-30 19:11:17,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-30 19:11:17,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:17,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-30 19:11:17,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-08-30 19:11:17,143 INFO L87 Difference]: Start difference. First operand 243 states and 319 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 19:11:17,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:17,975 INFO L93 Difference]: Finished difference Result 285 states and 365 transitions. [2021-08-30 19:11:17,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-30 19:11:17,976 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2021-08-30 19:11:17,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:17,977 INFO L225 Difference]: With dead ends: 285 [2021-08-30 19:11:17,977 INFO L226 Difference]: Without dead ends: 285 [2021-08-30 19:11:17,978 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 428.40ms TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-08-30 19:11:17,978 INFO L928 BasicCegarLoop]: 45 mSDtfsCounter, 1324 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 420.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.60ms SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 512.30ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:17,978 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [1326 Valid, 52 Invalid, 823 Unknown, 0 Unchecked, 3.60ms Time], IncrementalHoareTripleChecker [261 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 512.30ms Time] [2021-08-30 19:11:17,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-08-30 19:11:17,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 277. [2021-08-30 19:11:17,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 227 states have (on average 1.3171806167400881) internal successors, (299), 224 states have internal predecessors, (299), 26 states have call successors, (26), 19 states have call predecessors, (26), 23 states have return successors, (33), 33 states have call predecessors, (33), 20 states have call successors, (33) [2021-08-30 19:11:17,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 358 transitions. [2021-08-30 19:11:17,985 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 358 transitions. Word has length 53 [2021-08-30 19:11:17,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:17,985 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 358 transitions. [2021-08-30 19:11:17,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 19:11:17,985 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 358 transitions. [2021-08-30 19:11:17,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-30 19:11:17,986 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:17,986 INFO L513 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] [2021-08-30 19:11:17,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-30 19:11:17,987 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:17,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:17,987 INFO L82 PathProgramCache]: Analyzing trace with hash 305745141, now seen corresponding path program 1 times [2021-08-30 19:11:17,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:17,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625121273] [2021-08-30 19:11:17,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:17,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:18,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:18,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:18,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:18,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-08-30 19:11:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:18,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-08-30 19:11:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:18,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:18,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:18,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625121273] [2021-08-30 19:11:18,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625121273] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:18,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:18,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-30 19:11:18,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694699625] [2021-08-30 19:11:18,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-30 19:11:18,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:18,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-30 19:11:18,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-08-30 19:11:18,158 INFO L87 Difference]: Start difference. First operand 277 states and 358 transitions. Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-30 19:11:19,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:19,048 INFO L93 Difference]: Finished difference Result 291 states and 372 transitions. [2021-08-30 19:11:19,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-30 19:11:19,051 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 53 [2021-08-30 19:11:19,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:19,052 INFO L225 Difference]: With dead ends: 291 [2021-08-30 19:11:19,052 INFO L226 Difference]: Without dead ends: 238 [2021-08-30 19:11:19,052 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 121.05ms TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-08-30 19:11:19,053 INFO L928 BasicCegarLoop]: 45 mSDtfsCounter, 295 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 705.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 1970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.18ms SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 849.43ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:19,053 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 260 Invalid, 1970 Unknown, 0 Unchecked, 9.18ms Time], IncrementalHoareTripleChecker [53 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 849.43ms Time] [2021-08-30 19:11:19,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-08-30 19:11:19,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2021-08-30 19:11:19,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 194 states have (on average 1.3144329896907216) internal successors, (255), 191 states have internal predecessors, (255), 24 states have call successors, (24), 17 states have call predecessors, (24), 19 states have return successors, (29), 29 states have call predecessors, (29), 18 states have call successors, (29) [2021-08-30 19:11:19,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 308 transitions. [2021-08-30 19:11:19,060 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 308 transitions. Word has length 53 [2021-08-30 19:11:19,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:19,060 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 308 transitions. [2021-08-30 19:11:19,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-30 19:11:19,060 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 308 transitions. [2021-08-30 19:11:19,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-30 19:11:19,063 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:19,063 INFO L513 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] [2021-08-30 19:11:19,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-30 19:11:19,063 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:19,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:19,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1690938736, now seen corresponding path program 1 times [2021-08-30 19:11:19,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:19,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619273122] [2021-08-30 19:11:19,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:19,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:19,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:19,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:19,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:19,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-08-30 19:11:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:19,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-30 19:11:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:19,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-30 19:11:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:19,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:19,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:19,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619273122] [2021-08-30 19:11:19,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619273122] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:19,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:19,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-30 19:11:19,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490326820] [2021-08-30 19:11:19,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-30 19:11:19,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:19,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-30 19:11:19,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-08-30 19:11:19,266 INFO L87 Difference]: Start difference. First operand 238 states and 308 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-30 19:11:20,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:20,083 INFO L93 Difference]: Finished difference Result 275 states and 356 transitions. [2021-08-30 19:11:20,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-30 19:11:20,084 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 57 [2021-08-30 19:11:20,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:20,085 INFO L225 Difference]: With dead ends: 275 [2021-08-30 19:11:20,085 INFO L226 Difference]: Without dead ends: 275 [2021-08-30 19:11:20,085 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 279.97ms TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-08-30 19:11:20,086 INFO L928 BasicCegarLoop]: 37 mSDtfsCounter, 215 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 532.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.39ms SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 630.95ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:20,086 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 192 Invalid, 1329 Unknown, 0 Unchecked, 6.39ms Time], IncrementalHoareTripleChecker [66 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 630.95ms Time] [2021-08-30 19:11:20,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-08-30 19:11:20,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 253. [2021-08-30 19:11:20,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 207 states have (on average 1.3091787439613527) internal successors, (271), 204 states have internal predecessors, (271), 25 states have call successors, (25), 17 states have call predecessors, (25), 20 states have return successors, (31), 31 states have call predecessors, (31), 19 states have call successors, (31) [2021-08-30 19:11:20,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 327 transitions. [2021-08-30 19:11:20,094 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 327 transitions. Word has length 57 [2021-08-30 19:11:20,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:20,094 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 327 transitions. [2021-08-30 19:11:20,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-30 19:11:20,095 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 327 transitions. [2021-08-30 19:11:20,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-30 19:11:20,096 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:20,096 INFO L513 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] [2021-08-30 19:11:20,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-30 19:11:20,096 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:20,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:20,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1997036863, now seen corresponding path program 1 times [2021-08-30 19:11:20,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:20,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008078145] [2021-08-30 19:11:20,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:20,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:20,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:20,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:20,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:20,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-08-30 19:11:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:20,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-30 19:11:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:20,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-30 19:11:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:20,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:20,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:20,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008078145] [2021-08-30 19:11:20,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008078145] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:20,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:20,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-30 19:11:20,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450631794] [2021-08-30 19:11:20,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-30 19:11:20,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:20,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-30 19:11:20,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-08-30 19:11:20,306 INFO L87 Difference]: Start difference. First operand 253 states and 327 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-30 19:11:21,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:21,033 INFO L93 Difference]: Finished difference Result 266 states and 344 transitions. [2021-08-30 19:11:21,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-30 19:11:21,034 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 57 [2021-08-30 19:11:21,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:21,035 INFO L225 Difference]: With dead ends: 266 [2021-08-30 19:11:21,035 INFO L226 Difference]: Without dead ends: 259 [2021-08-30 19:11:21,035 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 199.96ms TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-08-30 19:11:21,036 INFO L928 BasicCegarLoop]: 35 mSDtfsCounter, 284 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 512.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.48ms SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 614.04ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:21,036 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 184 Invalid, 1373 Unknown, 0 Unchecked, 6.48ms Time], IncrementalHoareTripleChecker [71 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 614.04ms Time] [2021-08-30 19:11:21,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-08-30 19:11:21,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 247. [2021-08-30 19:11:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 202 states have (on average 1.306930693069307) internal successors, (264), 199 states have internal predecessors, (264), 24 states have call successors, (24), 17 states have call predecessors, (24), 20 states have return successors, (30), 30 states have call predecessors, (30), 18 states have call successors, (30) [2021-08-30 19:11:21,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 318 transitions. [2021-08-30 19:11:21,045 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 318 transitions. Word has length 57 [2021-08-30 19:11:21,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:21,045 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 318 transitions. [2021-08-30 19:11:21,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-30 19:11:21,045 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 318 transitions. [2021-08-30 19:11:21,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-30 19:11:21,046 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:21,046 INFO L513 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] [2021-08-30 19:11:21,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-30 19:11:21,047 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:21,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:21,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1650215593, now seen corresponding path program 1 times [2021-08-30 19:11:21,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:21,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046809512] [2021-08-30 19:11:21,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:21,048 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:21,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:21,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:21,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:21,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-30 19:11:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:21,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:21,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:21,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:21,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046809512] [2021-08-30 19:11:21,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046809512] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:21,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:21,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-30 19:11:21,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812101168] [2021-08-30 19:11:21,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-30 19:11:21,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:21,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-30 19:11:21,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-08-30 19:11:21,285 INFO L87 Difference]: Start difference. First operand 247 states and 318 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-30 19:11:22,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:22,179 INFO L93 Difference]: Finished difference Result 269 states and 340 transitions. [2021-08-30 19:11:22,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-30 19:11:22,180 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2021-08-30 19:11:22,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:22,181 INFO L225 Difference]: With dead ends: 269 [2021-08-30 19:11:22,181 INFO L226 Difference]: Without dead ends: 241 [2021-08-30 19:11:22,181 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 186.81ms TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2021-08-30 19:11:22,182 INFO L928 BasicCegarLoop]: 41 mSDtfsCounter, 129 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 1999 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 693.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 2031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.09ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 845.63ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:22,182 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 230 Invalid, 2031 Unknown, 0 Unchecked, 9.09ms Time], IncrementalHoareTripleChecker [32 Valid, 1999 Invalid, 0 Unknown, 0 Unchecked, 845.63ms Time] [2021-08-30 19:11:22,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-08-30 19:11:22,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2021-08-30 19:11:22,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 197 states have (on average 1.3096446700507614) internal successors, (258), 195 states have internal predecessors, (258), 23 states have call successors, (23), 17 states have call predecessors, (23), 20 states have return successors, (28), 28 states have call predecessors, (28), 17 states have call successors, (28) [2021-08-30 19:11:22,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 309 transitions. [2021-08-30 19:11:22,189 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 309 transitions. Word has length 54 [2021-08-30 19:11:22,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:22,189 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 309 transitions. [2021-08-30 19:11:22,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-30 19:11:22,190 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 309 transitions. [2021-08-30 19:11:22,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-30 19:11:22,190 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:22,191 INFO L513 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] [2021-08-30 19:11:22,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-30 19:11:22,191 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:22,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:22,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1570272846, now seen corresponding path program 1 times [2021-08-30 19:11:22,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:22,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055789557] [2021-08-30 19:11:22,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:22,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:22,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:22,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:22,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:22,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-08-30 19:11:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:22,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-08-30 19:11:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:22,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-30 19:11:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:22,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:22,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:22,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055789557] [2021-08-30 19:11:22,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055789557] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:22,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:22,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-30 19:11:22,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687043920] [2021-08-30 19:11:22,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-30 19:11:22,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:22,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-30 19:11:22,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-08-30 19:11:22,453 INFO L87 Difference]: Start difference. First operand 241 states and 309 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-30 19:11:23,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:23,234 INFO L93 Difference]: Finished difference Result 255 states and 323 transitions. [2021-08-30 19:11:23,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-30 19:11:23,235 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2021-08-30 19:11:23,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:23,236 INFO L225 Difference]: With dead ends: 255 [2021-08-30 19:11:23,236 INFO L226 Difference]: Without dead ends: 238 [2021-08-30 19:11:23,236 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 169.91ms TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-08-30 19:11:23,237 INFO L928 BasicCegarLoop]: 39 mSDtfsCounter, 243 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 2169 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 605.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.64ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 745.07ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:23,237 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 216 Invalid, 2220 Unknown, 0 Unchecked, 8.64ms Time], IncrementalHoareTripleChecker [51 Valid, 2169 Invalid, 0 Unknown, 0 Unchecked, 745.07ms Time] [2021-08-30 19:11:23,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-08-30 19:11:23,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2021-08-30 19:11:23,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 195 states have (on average 1.3076923076923077) internal successors, (255), 194 states have internal predecessors, (255), 22 states have call successors, (22), 17 states have call predecessors, (22), 20 states have return successors, (26), 26 states have call predecessors, (26), 16 states have call successors, (26) [2021-08-30 19:11:23,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 303 transitions. [2021-08-30 19:11:23,243 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 303 transitions. Word has length 56 [2021-08-30 19:11:23,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:23,243 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 303 transitions. [2021-08-30 19:11:23,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-30 19:11:23,244 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 303 transitions. [2021-08-30 19:11:23,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-30 19:11:23,244 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:23,244 INFO L513 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] [2021-08-30 19:11:23,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-30 19:11:23,245 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:23,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:23,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1135084193, now seen corresponding path program 1 times [2021-08-30 19:11:23,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:23,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772061630] [2021-08-30 19:11:23,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:23,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:23,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:23,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:23,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:23,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-08-30 19:11:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:23,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-30 19:11:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:23,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-08-30 19:11:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:23,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:23,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:23,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772061630] [2021-08-30 19:11:23,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772061630] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:23,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:23,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-30 19:11:23,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338312788] [2021-08-30 19:11:23,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-30 19:11:23,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:23,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-30 19:11:23,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-08-30 19:11:23,418 INFO L87 Difference]: Start difference. First operand 238 states and 303 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-30 19:11:24,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:24,018 INFO L93 Difference]: Finished difference Result 232 states and 294 transitions. [2021-08-30 19:11:24,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-30 19:11:24,018 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2021-08-30 19:11:24,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:24,019 INFO L225 Difference]: With dead ends: 232 [2021-08-30 19:11:24,019 INFO L226 Difference]: Without dead ends: 232 [2021-08-30 19:11:24,020 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 101.22ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-08-30 19:11:24,020 INFO L928 BasicCegarLoop]: 32 mSDtfsCounter, 155 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 485.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.15ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 577.68ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:24,020 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 132 Invalid, 1059 Unknown, 0 Unchecked, 5.15ms Time], IncrementalHoareTripleChecker [37 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 577.68ms Time] [2021-08-30 19:11:24,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-08-30 19:11:24,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2021-08-30 19:11:24,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 189 states have (on average 1.3015873015873016) internal successors, (246), 188 states have internal predecessors, (246), 22 states have call successors, (22), 17 states have call predecessors, (22), 20 states have return successors, (26), 26 states have call predecessors, (26), 16 states have call successors, (26) [2021-08-30 19:11:24,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 294 transitions. [2021-08-30 19:11:24,026 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 294 transitions. Word has length 58 [2021-08-30 19:11:24,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:24,026 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 294 transitions. [2021-08-30 19:11:24,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-30 19:11:24,027 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 294 transitions. [2021-08-30 19:11:24,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-30 19:11:24,028 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:24,028 INFO L513 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] [2021-08-30 19:11:24,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-30 19:11:24,028 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:24,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:24,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1689207293, now seen corresponding path program 1 times [2021-08-30 19:11:24,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:24,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892065062] [2021-08-30 19:11:24,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:24,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:24,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:24,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:24,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:24,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-30 19:11:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:24,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-08-30 19:11:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:24,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:24,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:24,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892065062] [2021-08-30 19:11:24,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892065062] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:24,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:24,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-08-30 19:11:24,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892268292] [2021-08-30 19:11:24,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-30 19:11:24,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:24,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-30 19:11:24,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-08-30 19:11:24,234 INFO L87 Difference]: Start difference. First operand 232 states and 294 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-30 19:11:25,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:25,149 INFO L93 Difference]: Finished difference Result 318 states and 387 transitions. [2021-08-30 19:11:25,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-30 19:11:25,150 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2021-08-30 19:11:25,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:25,151 INFO L225 Difference]: With dead ends: 318 [2021-08-30 19:11:25,151 INFO L226 Difference]: Without dead ends: 294 [2021-08-30 19:11:25,152 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 403.16ms TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2021-08-30 19:11:25,152 INFO L928 BasicCegarLoop]: 37 mSDtfsCounter, 515 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 513.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 1505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.19ms SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 625.16ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:25,152 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [515 Valid, 103 Invalid, 1505 Unknown, 0 Unchecked, 6.19ms Time], IncrementalHoareTripleChecker [98 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 625.16ms Time] [2021-08-30 19:11:25,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-08-30 19:11:25,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 239. [2021-08-30 19:11:25,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 194 states have (on average 1.2938144329896908) internal successors, (251), 195 states have internal predecessors, (251), 22 states have call successors, (22), 17 states have call predecessors, (22), 22 states have return successors, (30), 26 states have call predecessors, (30), 16 states have call successors, (30) [2021-08-30 19:11:25,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 303 transitions. [2021-08-30 19:11:25,159 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 303 transitions. Word has length 55 [2021-08-30 19:11:25,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:25,159 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 303 transitions. [2021-08-30 19:11:25,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-30 19:11:25,159 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 303 transitions. [2021-08-30 19:11:25,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-30 19:11:25,160 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:25,160 INFO L513 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] [2021-08-30 19:11:25,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-30 19:11:25,161 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:25,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:25,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1776480712, now seen corresponding path program 1 times [2021-08-30 19:11:25,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:25,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118266664] [2021-08-30 19:11:25,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:25,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:25,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:25,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:25,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:25,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-30 19:11:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:25,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-08-30 19:11:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:25,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:25,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:25,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118266664] [2021-08-30 19:11:25,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118266664] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:25,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:25,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-30 19:11:25,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26472166] [2021-08-30 19:11:25,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-30 19:11:25,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:25,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-30 19:11:25,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-08-30 19:11:25,375 INFO L87 Difference]: Start difference. First operand 239 states and 303 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-30 19:11:26,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:26,297 INFO L93 Difference]: Finished difference Result 261 states and 325 transitions. [2021-08-30 19:11:26,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-30 19:11:26,298 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2021-08-30 19:11:26,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:26,299 INFO L225 Difference]: With dead ends: 261 [2021-08-30 19:11:26,299 INFO L226 Difference]: Without dead ends: 216 [2021-08-30 19:11:26,299 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 167.92ms TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2021-08-30 19:11:26,300 INFO L928 BasicCegarLoop]: 37 mSDtfsCounter, 362 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 728.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 2064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.57ms SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 875.36ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:26,300 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 208 Invalid, 2064 Unknown, 0 Unchecked, 9.57ms Time], IncrementalHoareTripleChecker [68 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 875.36ms Time] [2021-08-30 19:11:26,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-08-30 19:11:26,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-08-30 19:11:26,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 172 states have (on average 1.2209302325581395) internal successors, (210), 174 states have internal predecessors, (210), 21 states have call successors, (21), 17 states have call predecessors, (21), 22 states have return successors, (26), 24 states have call predecessors, (26), 15 states have call successors, (26) [2021-08-30 19:11:26,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 257 transitions. [2021-08-30 19:11:26,305 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 257 transitions. Word has length 55 [2021-08-30 19:11:26,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:26,305 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 257 transitions. [2021-08-30 19:11:26,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-30 19:11:26,305 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 257 transitions. [2021-08-30 19:11:26,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-30 19:11:26,306 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:26,306 INFO L513 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] [2021-08-30 19:11:26,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-30 19:11:26,307 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:26,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:26,307 INFO L82 PathProgramCache]: Analyzing trace with hash 81251043, now seen corresponding path program 1 times [2021-08-30 19:11:26,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:26,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641055273] [2021-08-30 19:11:26,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:26,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:26,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 19:11:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:26,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-08-30 19:11:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:26,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-08-30 19:11:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:26,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-08-30 19:11:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:26,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-08-30 19:11:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:26,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:26,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 19:11:26,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641055273] [2021-08-30 19:11:26,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641055273] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:26,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:26,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-30 19:11:26,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51079864] [2021-08-30 19:11:26,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 19:11:26,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 19:11:26,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 19:11:26,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-30 19:11:26,508 INFO L87 Difference]: Start difference. First operand 216 states and 257 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-30 19:11:26,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:26,977 INFO L93 Difference]: Finished difference Result 235 states and 280 transitions. [2021-08-30 19:11:26,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 19:11:26,979 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 56 [2021-08-30 19:11:26,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:26,980 INFO L225 Difference]: With dead ends: 235 [2021-08-30 19:11:26,980 INFO L226 Difference]: Without dead ends: 235 [2021-08-30 19:11:26,981 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 167.57ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-08-30 19:11:26,981 INFO L928 BasicCegarLoop]: 37 mSDtfsCounter, 250 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 338.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.41ms SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 400.24ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:26,981 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 114 Invalid, 733 Unknown, 0 Unchecked, 3.41ms Time], IncrementalHoareTripleChecker [61 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 400.24ms Time] [2021-08-30 19:11:26,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-08-30 19:11:26,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 222. [2021-08-30 19:11:26,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 178 states have (on average 1.2247191011235956) internal successors, (218), 180 states have internal predecessors, (218), 21 states have call successors, (21), 17 states have call predecessors, (21), 22 states have return successors, (26), 24 states have call predecessors, (26), 15 states have call successors, (26) [2021-08-30 19:11:26,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 265 transitions. [2021-08-30 19:11:26,987 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 265 transitions. Word has length 56 [2021-08-30 19:11:26,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:26,987 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 265 transitions. [2021-08-30 19:11:26,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (7), 7 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-08-30 19:11:26,987 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 265 transitions. [2021-08-30 19:11:26,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-30 19:11:26,988 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:26,988 INFO L513 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] [2021-08-30 19:11:26,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-30 19:11:26,989 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:26,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:26,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1355183133, now seen corresponding path program 1 times [2021-08-30 19:11:26,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 19:11:26,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748703806] [2021-08-30 19:11:26,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:26,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 19:11:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 19:11:27,010 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-30 19:11:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 19:11:27,091 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-30 19:11:27,092 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-30 19:11:27,093 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2021-08-30 19:11:27,094 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2021-08-30 19:11:27,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-30 19:11:27,099 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 19:11:27,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 07:11:27 BoogieIcfgContainer [2021-08-30 19:11:27,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 19:11:27,202 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 19:11:27,203 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 19:11:27,203 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 19:11:27,203 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 07:11:03" (3/4) ... [2021-08-30 19:11:27,206 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-30 19:11:27,206 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 19:11:27,208 INFO L158 Benchmark]: Toolchain (without parser) took 25102.02ms. Allocated memory was 67.1MB in the beginning and 163.6MB in the end (delta: 96.5MB). Free memory was 46.5MB in the beginning and 66.5MB in the end (delta: -19.9MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. [2021-08-30 19:11:27,208 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory was 47.9MB in the beginning and 47.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 19:11:27,209 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.95ms. Allocated memory is still 67.1MB. Free memory was 46.4MB in the beginning and 45.2MB in the end (delta: 1.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-30 19:11:27,209 INFO L158 Benchmark]: Boogie Preprocessor took 53.17ms. Allocated memory is still 67.1MB. Free memory was 45.2MB in the beginning and 42.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 19:11:27,209 INFO L158 Benchmark]: RCFGBuilder took 508.60ms. Allocated memory is still 67.1MB. Free memory was 42.2MB in the beginning and 36.2MB in the end (delta: 5.9MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2021-08-30 19:11:27,210 INFO L158 Benchmark]: TraceAbstraction took 24061.86ms. Allocated memory was 67.1MB in the beginning and 163.6MB in the end (delta: 96.5MB). Free memory was 35.7MB in the beginning and 66.5MB in the end (delta: -30.8MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2021-08-30 19:11:27,210 INFO L158 Benchmark]: Witness Printer took 5.08ms. Allocated memory is still 163.6MB. Free memory is still 66.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 19:11:27,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory was 47.9MB in the beginning and 47.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 466.95ms. Allocated memory is still 67.1MB. Free memory was 46.4MB in the beginning and 45.2MB in the end (delta: 1.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.17ms. Allocated memory is still 67.1MB. Free memory was 45.2MB in the beginning and 42.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.60ms. Allocated memory is still 67.1MB. Free memory was 42.2MB in the beginning and 36.2MB in the end (delta: 5.9MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * TraceAbstraction took 24061.86ms. Allocated memory was 67.1MB in the beginning and 163.6MB in the end (delta: 96.5MB). Free memory was 35.7MB in the beginning and 66.5MB in the end (delta: -30.8MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Witness Printer took 5.08ms. Allocated memory is still 163.6MB. Free memory is still 66.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1013. Possible FailurePath: [L23] int KernelMode ; [L24] int Executive ; [L25] int DevicePowerState ; [L26] int s ; [L27] int UNLOADED ; [L28] int NP ; [L29] int DC ; [L30] int SKIP1 ; [L31] int SKIP2 ; [L32] int MPR1 ; [L33] int MPR3 ; [L34] int IPC ; [L35] int pended ; [L36] int compFptr ; [L37] int compRegistered ; [L38] int lowerDriverReturn ; [L39] int setEventCalled ; [L40] int customIrp ; [L41] int myStatus ; VAL [\old(compFptr)=69, \old(compRegistered)=49, \old(customIrp)=52, \old(DC)=73, \old(DevicePowerState)=55, \old(Executive)=71, \old(IPC)=61, \old(KernelMode)=57, \old(lowerDriverReturn)=62, \old(MPR1)=68, \old(MPR3)=75, \old(myStatus)=72, \old(NP)=53, \old(pended)=70, \old(s)=58, \old(setEventCalled)=50, \old(SKIP1)=56, \old(SKIP2)=67, \old(UNLOADED)=60, 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] [L294] int status ; [L295] int irp = __VERIFIER_nondet_int() ; [L296] int pirp ; [L297] int pirp__IoStatus__Status ; [L298] int irp_choice = __VERIFIER_nondet_int() ; [L299] int devobj = __VERIFIER_nondet_int() ; [L300] int __cil_tmp8 ; [L302] KernelMode = 0 [L303] Executive = 0 [L304] DevicePowerState = 1 [L305] s = 0 [L306] UNLOADED = 0 [L307] NP = 0 [L308] DC = 0 [L309] SKIP1 = 0 [L310] SKIP2 = 0 [L311] MPR1 = 0 [L312] MPR3 = 0 [L313] IPC = 0 [L314] pended = 0 [L315] compFptr = 0 [L316] compRegistered = 0 [L317] lowerDriverReturn = 0 [L318] setEventCalled = 0 [L319] customIrp = 0 [L320] myStatus = 0 [L324] status = 0 [L325] 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=-3, Executive=0, IPC=0, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, UNLOADED=0] [L326] 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] [L61] UNLOADED = 0 [L62] NP = 1 [L63] DC = 2 [L64] SKIP1 = 3 [L65] SKIP2 = 4 [L66] MPR1 = 5 [L67] MPR3 = 6 [L68] IPC = 7 [L69] s = UNLOADED [L70] pended = 0 [L71] compFptr = 0 [L72] compRegistered = 0 [L73] lowerDriverReturn = 0 [L74] setEventCalled = 0 [L75] 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] [L326] 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=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L328] COND TRUE status >= 0 [L329] s = NP [L330] customIrp = 0 [L331] setEventCalled = customIrp [L332] lowerDriverReturn = setEventCalled [L333] compRegistered = lowerDriverReturn [L334] pended = compRegistered [L335] pirp__IoStatus__Status = 0 [L336] 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=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L337] 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=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L342] 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] [L47] s = NP [L48] pended = 0 [L49] compFptr = 0 [L50] compRegistered = 0 [L51] lowerDriverReturn = 0 [L52] setEventCalled = 0 [L53] 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] [L342] 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=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L345] COND FALSE !(status < 0) [L349] int tmp_ndt_1; [L350] tmp_ndt_1 = __VERIFIER_nondet_int() [L351] COND FALSE !(tmp_ndt_1 == 0) [L354] int tmp_ndt_2; [L355] tmp_ndt_2 = __VERIFIER_nondet_int() [L356] COND FALSE !(tmp_ndt_2 == 1) [L359] int tmp_ndt_3; [L360] tmp_ndt_3 = __VERIFIER_nondet_int() [L361] 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=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L388] CALL, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=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] [L80] int devExt ; [L81] int irpStack ; [L82] int status ; [L83] int event = __VERIFIER_nondet_int() ; [L84] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L85] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L86] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L87] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L88] int devExt__Started ; [L89] int devExt__Removed ; [L90] int devExt__SurpriseRemoved ; [L91] int Irp__IoStatus__Status ; [L92] int Irp__IoStatus__Information ; [L93] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L94] int irpSp ; [L95] int nextIrpSp ; [L96] int nextIrpSp__Control ; [L97] int irpSp___0 ; [L98] int irpSp__Context ; [L99] int irpSp__Control ; [L100] long __cil_tmp23 ; [L103] status = 0 [L104] devExt = DeviceObject__DeviceExtension [L105] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=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, devExt=-4, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L106] COND FALSE !(irpStack__MinorFunction == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=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, devExt=-4, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L109] COND FALSE !(irpStack__MinorFunction == 23) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=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, devExt=-4, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L112] COND TRUE irpStack__MinorFunction == 2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=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, devExt=-4, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L236] devExt__Removed = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=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, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L237] COND TRUE s == NP [L238] s = SKIP1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=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, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L245] Irp__CurrentLocation ++ [L246] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=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, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L247] 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)=0, \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] [L483] int returnVal2 ; [L484] int compRetStatus ; [L485] int lcontext = __VERIFIER_nondet_int() ; [L486] 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)=0, \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=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L489] 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)=0, \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=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L502] int tmp_ndt_6; [L503] tmp_ndt_6 = __VERIFIER_nondet_int() [L504] COND FALSE !(tmp_ndt_6 == 0) [L507] int tmp_ndt_7; [L508] tmp_ndt_7 = __VERIFIER_nondet_int() [L509] 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)=0, \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=0, KernelMode=0, lcontext=-5, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=-6, tmp_ndt_7=1, UNLOADED=0] [L518] 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)=0, \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=0, KernelMode=0, lcontext=-5, 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=-6, tmp_ndt_7=1, UNLOADED=0] [L528] 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)=0, \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=0, KernelMode=0, lcontext=-5, 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=-6, tmp_ndt_7=1, UNLOADED=0] [L532] 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)=0, \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=0, KernelMode=0, lcontext=-5, 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=-6, tmp_ndt_7=1, UNLOADED=0] [L541] COND TRUE s == SKIP1 [L542] s = SKIP2 [L543] 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)=0, \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=0, KernelMode=0, lcontext=-5, 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=-6, tmp_ndt_7=1, UNLOADED=0] [L551] 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)=0, \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=0, KernelMode=0, lcontext=-5, 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=-6, tmp_ndt_7=1, UNLOADED=0] [L247] RET IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=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, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IofCallDriver(devExt__TopOfStack, Irp)=-1073741823, IPC=7, Irp=0, 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] [L248] status = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=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, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L290] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=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, \result=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-4, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-4, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=0, 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] [L388] 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=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KbFilter_PnP(devobj, pirp)=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L388] status = KbFilter_PnP(devobj, pirp) [L412] 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=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L420] 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=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L428] 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=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L429] 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=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L430] 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=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L440] 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=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L447] 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=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L452] 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=-3, Executive=0, IPC=7, irp=0, irp_choice=-2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L453] 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] [L1013] reach_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] - UnprovableResult [Line: 293]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 244 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 23906.09ms, OverallIterations: 23, TraceHistogramMax: 1, EmptinessCheckTime: 36.26ms, AutomataDifference: 18659.46ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 12.53ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9325 SdHoareTripleChecker+Valid, 15263.42ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9306 mSDsluCounter, 2841 SdHoareTripleChecker+Invalid, 12721.43ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7407 mSDsCounter, 1839 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25776 IncrementalHoareTripleChecker+Invalid, 27615 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1839 mSolverCounterUnsat, 987 mSDtfsCounter, 25776 mSolverCounterSat, 166.93ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 442 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 5094.15ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=4, InterpolantAutomatonStates: 219, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 224.54ms AutomataMinimizationTime, 22 MinimizatonAttempts, 309 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 82.04ms SsaConstructionTime, 315.60ms SatisfiabilityAnalysisTime, 4235.93ms InterpolantComputationTime, 1080 NumberOfCodeBlocks, 1080 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1002 ConstructedInterpolants, 0 QuantifiedInterpolants, 5666 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 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 could not prove your program: unable to determine feasibility of some traces [2021-08-30 19:11:27,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 19:11:29,082 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-08-30 19:11:29,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 19:11:29,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 19:11:29,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 19:11:29,207 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-30 19:11:29,245 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 19:11:29,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 19:11:29,246 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 19:11:29,246 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 19:11:29,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 19:11:29,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 19:11:29,248 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 19:11:29,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 19:11:29,249 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 19:11:29,249 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 19:11:29,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 19:11:29,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 19:11:29,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 19:11:29,250 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 19:11:29,250 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 19:11:29,251 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 19:11:29,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 19:11:29,251 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 19:11:29,251 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-30 19:11:29,251 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-30 19:11:29,251 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 19:11:29,252 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 19:11:29,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 19:11:29,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 19:11:29,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 19:11:29,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 19:11:29,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 19:11:29,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 19:11:29,253 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-30 19:11:29,253 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-30 19:11:29,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 19:11:29,253 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-30 19:11:29,254 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bf978f501147b566a0f6f3e817c934f24352e71 [2021-08-30 19:11:29,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 19:11:29,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 19:11:29,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 19:11:29,570 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 19:11:29,570 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 19:11:29,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2021-08-30 19:11:29,633 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/345da4b3b/d4a1314bb460473b9e5de26b00315704/FLAG5f5c4ddcc [2021-08-30 19:11:30,117 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 19:11:30,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2021-08-30 19:11:30,141 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/345da4b3b/d4a1314bb460473b9e5de26b00315704/FLAG5f5c4ddcc [2021-08-30 19:11:30,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/345da4b3b/d4a1314bb460473b9e5de26b00315704 [2021-08-30 19:11:30,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 19:11:30,491 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 19:11:30,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 19:11:30,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 19:11:30,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 19:11:30,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 07:11:30" (1/1) ... [2021-08-30 19:11:30,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51bd876e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:30, skipping insertion in model container [2021-08-30 19:11:30,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 07:11:30" (1/1) ... [2021-08-30 19:11:30,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 19:11:30,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 19:11:30,809 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2021-08-30 19:11:30,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 19:11:30,824 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 19:11:30,948 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2021-08-30 19:11:30,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 19:11:30,972 INFO L208 MainTranslator]: Completed translation [2021-08-30 19:11:30,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:30 WrapperNode [2021-08-30 19:11:30,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 19:11:30,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 19:11:30,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 19:11:30,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 19:11:30,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:30" (1/1) ... [2021-08-30 19:11:30,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:30" (1/1) ... [2021-08-30 19:11:31,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:30" (1/1) ... [2021-08-30 19:11:31,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:30" (1/1) ... [2021-08-30 19:11:31,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:30" (1/1) ... [2021-08-30 19:11:31,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:30" (1/1) ... [2021-08-30 19:11:31,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:30" (1/1) ... [2021-08-30 19:11:31,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 19:11:31,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 19:11:31,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 19:11:31,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 19:11:31,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:30" (1/1) ... [2021-08-30 19:11:31,054 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 19:11:31,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 19:11:31,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-30 19:11:31,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-30 19:11:31,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-30 19:11:31,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 19:11:31,122 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-08-30 19:11:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2021-08-30 19:11:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2021-08-30 19:11:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2021-08-30 19:11:31,124 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-30 19:11:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-08-30 19:11:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-08-30 19:11:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-08-30 19:11:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2021-08-30 19:11:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-08-30 19:11:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2021-08-30 19:11:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2021-08-30 19:11:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2021-08-30 19:11:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2021-08-30 19:11:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2021-08-30 19:11:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2021-08-30 19:11:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-08-30 19:11:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-30 19:11:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-08-30 19:11:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-08-30 19:11:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 19:11:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-08-30 19:11:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-30 19:11:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2021-08-30 19:11:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2021-08-30 19:11:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-08-30 19:11:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2021-08-30 19:11:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-08-30 19:11:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2021-08-30 19:11:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2021-08-30 19:11:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2021-08-30 19:11:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2021-08-30 19:11:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2021-08-30 19:11:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2021-08-30 19:11:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-08-30 19:11:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-08-30 19:11:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2021-08-30 19:11:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2021-08-30 19:11:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-30 19:11:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-08-30 19:11:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-30 19:11:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-30 19:11:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 19:11:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-08-30 19:11:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-08-30 19:11:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-30 19:11:31,348 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 19:11:31,404 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-08-30 19:11:31,404 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-08-30 19:11:31,411 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 19:11:31,431 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-08-30 19:11:31,438 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2021-08-30 19:11:31,452 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 19:11:31,463 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-08-30 19:11:31,464 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-08-30 19:11:31,470 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 19:11:31,538 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2021-08-30 19:11:31,540 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2021-08-30 19:11:31,542 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 19:11:31,551 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2021-08-30 19:11:31,555 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2021-08-30 19:11:31,557 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-30 19:11:31,564 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-08-30 19:11:31,565 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2021-08-30 19:11:31,599 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 19:11:31,600 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-30 19:11:31,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 07:11:31 BoogieIcfgContainer [2021-08-30 19:11:31,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 19:11:31,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 19:11:31,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 19:11:31,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 19:11:31,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 07:11:30" (1/3) ... [2021-08-30 19:11:31,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@708161f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 07:11:31, skipping insertion in model container [2021-08-30 19:11:31,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:11:30" (2/3) ... [2021-08-30 19:11:31,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@708161f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 07:11:31, skipping insertion in model container [2021-08-30 19:11:31,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 07:11:31" (3/3) ... [2021-08-30 19:11:31,612 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2021-08-30 19:11:31,619 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 19:11:31,620 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-30 19:11:31,666 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 19:11:31,676 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-30 19:11:31,676 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-30 19:11:31,703 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 182 states have (on average 1.565934065934066) internal successors, (285), 201 states have internal predecessors, (285), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2021-08-30 19:11:31,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-30 19:11:31,722 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:31,723 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 19:11:31,724 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:31,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:31,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1216173165, now seen corresponding path program 1 times [2021-08-30 19:11:31,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:31,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687538583] [2021-08-30 19:11:31,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:31,749 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:31,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:31,773 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:31,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-30 19:11:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:31,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-30 19:11:31,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:32,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:32,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:32,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:32,107 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:32,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687538583] [2021-08-30 19:11:32,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687538583] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:32,108 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:32,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-08-30 19:11:32,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947132469] [2021-08-30 19:11:32,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-30 19:11:32,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:32,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-30 19:11:32,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-30 19:11:32,148 INFO L87 Difference]: Start difference. First operand has 241 states, 182 states have (on average 1.565934065934066) internal successors, (285), 201 states have internal predecessors, (285), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 19:11:32,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:32,534 INFO L93 Difference]: Finished difference Result 238 states and 344 transitions. [2021-08-30 19:11:32,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-30 19:11:32,537 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2021-08-30 19:11:32,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:32,552 INFO L225 Difference]: With dead ends: 238 [2021-08-30 19:11:32,552 INFO L226 Difference]: Without dead ends: 231 [2021-08-30 19:11:32,555 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.15ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-30 19:11:32,559 INFO L928 BasicCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 271.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.94ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 343.27ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:32,562 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 280 Unknown, 0 Unchecked, 2.94ms Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 343.27ms Time] [2021-08-30 19:11:32,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-08-30 19:11:32,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2021-08-30 19:11:32,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 176 states have (on average 1.5) internal successors, (264), 192 states have internal predecessors, (264), 39 states have call successors, (39), 17 states have call predecessors, (39), 15 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2021-08-30 19:11:32,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 327 transitions. [2021-08-30 19:11:32,652 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 327 transitions. Word has length 15 [2021-08-30 19:11:32,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:32,653 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 327 transitions. [2021-08-30 19:11:32,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-30 19:11:32,655 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 327 transitions. [2021-08-30 19:11:32,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-30 19:11:32,660 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:32,660 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 19:11:32,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:32,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:32,876 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:32,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:32,877 INFO L82 PathProgramCache]: Analyzing trace with hash -650681863, now seen corresponding path program 1 times [2021-08-30 19:11:32,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:32,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302059853] [2021-08-30 19:11:32,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:32,878 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:32,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:32,880 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:32,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-30 19:11:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:33,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-30 19:11:33,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:33,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:33,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:33,226 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:33,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302059853] [2021-08-30 19:11:33,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1302059853] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:33,227 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:33,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-30 19:11:33,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499271311] [2021-08-30 19:11:33,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 19:11:33,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:33,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 19:11:33,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-30 19:11:33,235 INFO L87 Difference]: Start difference. First operand 231 states and 327 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-30 19:11:33,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:33,712 INFO L93 Difference]: Finished difference Result 231 states and 326 transitions. [2021-08-30 19:11:33,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 19:11:33,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 20 [2021-08-30 19:11:33,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:33,714 INFO L225 Difference]: With dead ends: 231 [2021-08-30 19:11:33,714 INFO L226 Difference]: Without dead ends: 231 [2021-08-30 19:11:33,715 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.63ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-30 19:11:33,716 INFO L928 BasicCegarLoop]: 63 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 335.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.11ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 431.47ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:33,716 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 119 Invalid, 518 Unknown, 0 Unchecked, 8.11ms Time], IncrementalHoareTripleChecker [6 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 431.47ms Time] [2021-08-30 19:11:33,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-08-30 19:11:33,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2021-08-30 19:11:33,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 176 states have (on average 1.4943181818181819) internal successors, (263), 192 states have internal predecessors, (263), 39 states have call successors, (39), 17 states have call predecessors, (39), 15 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2021-08-30 19:11:33,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 326 transitions. [2021-08-30 19:11:33,728 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 326 transitions. Word has length 20 [2021-08-30 19:11:33,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:33,729 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 326 transitions. [2021-08-30 19:11:33,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-30 19:11:33,729 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 326 transitions. [2021-08-30 19:11:33,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-30 19:11:33,730 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:33,731 INFO L513 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] [2021-08-30 19:11:33,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:33,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:33,942 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:33,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:33,943 INFO L82 PathProgramCache]: Analyzing trace with hash 634702516, now seen corresponding path program 1 times [2021-08-30 19:11:33,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:33,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969236086] [2021-08-30 19:11:33,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:33,944 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:33,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:33,945 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:33,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-30 19:11:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:34,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 19:11:34,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:34,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:34,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:34,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:34,386 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:34,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969236086] [2021-08-30 19:11:34,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969236086] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:34,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:34,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2021-08-30 19:11:34,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869614125] [2021-08-30 19:11:34,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 19:11:34,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:34,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 19:11:34,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 19:11:34,388 INFO L87 Difference]: Start difference. First operand 231 states and 326 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 19:11:35,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:35,002 INFO L93 Difference]: Finished difference Result 315 states and 428 transitions. [2021-08-30 19:11:35,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 19:11:35,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2021-08-30 19:11:35,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:35,006 INFO L225 Difference]: With dead ends: 315 [2021-08-30 19:11:35,006 INFO L226 Difference]: Without dead ends: 314 [2021-08-30 19:11:35,006 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.46ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 19:11:35,007 INFO L928 BasicCegarLoop]: 72 mSDtfsCounter, 526 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 475.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.46ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 578.51ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:35,007 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [527 Valid, 74 Invalid, 737 Unknown, 0 Unchecked, 6.46ms Time], IncrementalHoareTripleChecker [38 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 578.51ms Time] [2021-08-30 19:11:35,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-08-30 19:11:35,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 298. [2021-08-30 19:11:35,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 234 states have (on average 1.3974358974358974) internal successors, (327), 237 states have internal predecessors, (327), 38 states have call successors, (38), 23 states have call predecessors, (38), 25 states have return successors, (43), 40 states have call predecessors, (43), 29 states have call successors, (43) [2021-08-30 19:11:35,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 408 transitions. [2021-08-30 19:11:35,036 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 408 transitions. Word has length 28 [2021-08-30 19:11:35,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:35,036 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 408 transitions. [2021-08-30 19:11:35,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 19:11:35,042 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 408 transitions. [2021-08-30 19:11:35,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-30 19:11:35,045 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:35,045 INFO L513 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] [2021-08-30 19:11:35,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:35,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:35,259 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:35,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:35,260 INFO L82 PathProgramCache]: Analyzing trace with hash 2054471313, now seen corresponding path program 1 times [2021-08-30 19:11:35,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:35,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128027574] [2021-08-30 19:11:35,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:35,261 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:35,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:35,261 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:35,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-30 19:11:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:35,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 19:11:35,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:35,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:35,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:35,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:35,539 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:35,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128027574] [2021-08-30 19:11:35,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128027574] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:35,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:35,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-30 19:11:35,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936094551] [2021-08-30 19:11:35,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 19:11:35,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:35,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 19:11:35,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 19:11:35,545 INFO L87 Difference]: Start difference. First operand 298 states and 408 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 19:11:35,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:35,861 INFO L93 Difference]: Finished difference Result 362 states and 487 transitions. [2021-08-30 19:11:35,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 19:11:35,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2021-08-30 19:11:35,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:35,863 INFO L225 Difference]: With dead ends: 362 [2021-08-30 19:11:35,864 INFO L226 Difference]: Without dead ends: 362 [2021-08-30 19:11:35,864 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 19:11:35,865 INFO L928 BasicCegarLoop]: 53 mSDtfsCounter, 265 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 238.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.01ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 301.06ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:35,865 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 72 Invalid, 340 Unknown, 0 Unchecked, 2.01ms Time], IncrementalHoareTripleChecker [7 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 301.06ms Time] [2021-08-30 19:11:35,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-08-30 19:11:35,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 338. [2021-08-30 19:11:35,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 275 states have (on average 1.3890909090909092) internal successors, (382), 276 states have internal predecessors, (382), 34 states have call successors, (34), 23 states have call predecessors, (34), 28 states have return successors, (43), 39 states have call predecessors, (43), 27 states have call successors, (43) [2021-08-30 19:11:35,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 459 transitions. [2021-08-30 19:11:35,878 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 459 transitions. Word has length 28 [2021-08-30 19:11:35,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:35,879 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 459 transitions. [2021-08-30 19:11:35,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-30 19:11:35,879 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 459 transitions. [2021-08-30 19:11:35,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-30 19:11:35,881 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:35,881 INFO L513 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] [2021-08-30 19:11:35,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:36,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:36,090 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:36,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:36,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1351706538, now seen corresponding path program 1 times [2021-08-30 19:11:36,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:36,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372466841] [2021-08-30 19:11:36,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:36,091 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:36,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:36,095 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:36,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-30 19:11:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:36,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-30 19:11:36,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:36,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:36,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:36,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:36,520 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:36,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372466841] [2021-08-30 19:11:36,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372466841] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:36,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:36,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2021-08-30 19:11:36,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693017892] [2021-08-30 19:11:36,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 19:11:36,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:36,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 19:11:36,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 19:11:36,522 INFO L87 Difference]: Start difference. First operand 338 states and 459 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 19:11:37,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:37,101 INFO L93 Difference]: Finished difference Result 337 states and 456 transitions. [2021-08-30 19:11:37,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 19:11:37,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2021-08-30 19:11:37,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:37,104 INFO L225 Difference]: With dead ends: 337 [2021-08-30 19:11:37,104 INFO L226 Difference]: Without dead ends: 337 [2021-08-30 19:11:37,105 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 10.04ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 19:11:37,105 INFO L928 BasicCegarLoop]: 45 mSDtfsCounter, 287 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 439.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.31ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 554.93ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:37,108 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 48 Invalid, 809 Unknown, 0 Unchecked, 4.31ms Time], IncrementalHoareTripleChecker [12 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 554.93ms Time] [2021-08-30 19:11:37,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-08-30 19:11:37,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2021-08-30 19:11:37,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 275 states have (on average 1.3818181818181818) internal successors, (380), 275 states have internal predecessors, (380), 33 states have call successors, (33), 23 states have call predecessors, (33), 28 states have return successors, (43), 39 states have call predecessors, (43), 27 states have call successors, (43) [2021-08-30 19:11:37,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 456 transitions. [2021-08-30 19:11:37,126 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 456 transitions. Word has length 38 [2021-08-30 19:11:37,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:37,127 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 456 transitions. [2021-08-30 19:11:37,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-30 19:11:37,127 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 456 transitions. [2021-08-30 19:11:37,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-30 19:11:37,134 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:37,134 INFO L513 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] [2021-08-30 19:11:37,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:37,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:37,348 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:37,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:37,348 INFO L82 PathProgramCache]: Analyzing trace with hash 136406623, now seen corresponding path program 1 times [2021-08-30 19:11:37,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:37,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435135601] [2021-08-30 19:11:37,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:37,349 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:37,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:37,350 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:37,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-30 19:11:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:37,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-30 19:11:37,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:37,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:37,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:37,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:37,669 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:37,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435135601] [2021-08-30 19:11:37,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435135601] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:37,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:37,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-08-30 19:11:37,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388502285] [2021-08-30 19:11:37,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 19:11:37,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:37,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 19:11:37,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-30 19:11:37,671 INFO L87 Difference]: Start difference. First operand 337 states and 456 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-30 19:11:38,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:38,108 INFO L93 Difference]: Finished difference Result 319 states and 424 transitions. [2021-08-30 19:11:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 19:11:38,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2021-08-30 19:11:38,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:38,110 INFO L225 Difference]: With dead ends: 319 [2021-08-30 19:11:38,110 INFO L226 Difference]: Without dead ends: 319 [2021-08-30 19:11:38,110 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.47ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-30 19:11:38,111 INFO L928 BasicCegarLoop]: 53 mSDtfsCounter, 409 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 325.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.90ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 412.84ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:38,112 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 55 Invalid, 661 Unknown, 0 Unchecked, 3.90ms Time], IncrementalHoareTripleChecker [23 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 412.84ms Time] [2021-08-30 19:11:38,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-08-30 19:11:38,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 298. [2021-08-30 19:11:38,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 241 states have (on average 1.3734439834024896) internal successors, (331), 241 states have internal predecessors, (331), 30 states have call successors, (30), 21 states have call predecessors, (30), 26 states have return successors, (38), 36 states have call predecessors, (38), 24 states have call successors, (38) [2021-08-30 19:11:38,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 399 transitions. [2021-08-30 19:11:38,122 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 399 transitions. Word has length 46 [2021-08-30 19:11:38,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:38,122 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 399 transitions. [2021-08-30 19:11:38,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-30 19:11:38,122 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 399 transitions. [2021-08-30 19:11:38,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-08-30 19:11:38,124 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:38,124 INFO L513 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] [2021-08-30 19:11:38,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:38,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:38,335 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:38,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:38,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1699015048, now seen corresponding path program 1 times [2021-08-30 19:11:38,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:38,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098050670] [2021-08-30 19:11:38,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:38,337 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:38,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:38,338 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:38,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-30 19:11:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:38,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 19:11:38,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:38,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:38,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:38,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:38,928 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:38,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098050670] [2021-08-30 19:11:38,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098050670] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:38,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:38,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-30 19:11:38,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239611031] [2021-08-30 19:11:38,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 19:11:38,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:38,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 19:11:38,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-30 19:11:38,930 INFO L87 Difference]: Start difference. First operand 298 states and 399 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-30 19:11:39,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:39,572 INFO L93 Difference]: Finished difference Result 328 states and 431 transitions. [2021-08-30 19:11:39,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 19:11:39,573 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) Word has length 45 [2021-08-30 19:11:39,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:39,574 INFO L225 Difference]: With dead ends: 328 [2021-08-30 19:11:39,575 INFO L226 Difference]: Without dead ends: 327 [2021-08-30 19:11:39,575 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 39.97ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-08-30 19:11:39,575 INFO L928 BasicCegarLoop]: 52 mSDtfsCounter, 363 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 498.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.46ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 609.14ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:39,576 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 56 Invalid, 880 Unknown, 0 Unchecked, 4.46ms Time], IncrementalHoareTripleChecker [25 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 609.14ms Time] [2021-08-30 19:11:39,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-08-30 19:11:39,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 314. [2021-08-30 19:11:39,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 255 states have (on average 1.3647058823529412) internal successors, (348), 254 states have internal predecessors, (348), 30 states have call successors, (30), 21 states have call predecessors, (30), 28 states have return successors, (40), 38 states have call predecessors, (40), 24 states have call successors, (40) [2021-08-30 19:11:39,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 418 transitions. [2021-08-30 19:11:39,594 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 418 transitions. Word has length 45 [2021-08-30 19:11:39,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:39,594 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 418 transitions. [2021-08-30 19:11:39,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-30 19:11:39,595 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 418 transitions. [2021-08-30 19:11:39,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-30 19:11:39,598 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:39,598 INFO L513 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] [2021-08-30 19:11:39,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:39,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:39,810 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:39,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:39,810 INFO L82 PathProgramCache]: Analyzing trace with hash 750548217, now seen corresponding path program 1 times [2021-08-30 19:11:39,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:39,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604369648] [2021-08-30 19:11:39,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:39,811 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:39,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:39,812 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:39,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-30 19:11:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:39,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 19:11:39,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:40,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:40,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:40,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:40,393 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:40,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604369648] [2021-08-30 19:11:40,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1604369648] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:40,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:40,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-30 19:11:40,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344316067] [2021-08-30 19:11:40,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 19:11:40,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:40,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 19:11:40,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-30 19:11:40,395 INFO L87 Difference]: Start difference. First operand 314 states and 418 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-30 19:11:40,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:40,997 INFO L93 Difference]: Finished difference Result 319 states and 421 transitions. [2021-08-30 19:11:40,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 19:11:40,998 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) Word has length 46 [2021-08-30 19:11:40,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:40,999 INFO L225 Difference]: With dead ends: 319 [2021-08-30 19:11:41,000 INFO L226 Difference]: Without dead ends: 319 [2021-08-30 19:11:41,000 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 38.68ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-08-30 19:11:41,001 INFO L928 BasicCegarLoop]: 51 mSDtfsCounter, 307 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 454.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.56ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 570.37ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:41,001 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 55 Invalid, 871 Unknown, 0 Unchecked, 4.56ms Time], IncrementalHoareTripleChecker [14 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 570.37ms Time] [2021-08-30 19:11:41,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-08-30 19:11:41,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 314. [2021-08-30 19:11:41,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 255 states have (on average 1.3607843137254902) internal successors, (347), 254 states have internal predecessors, (347), 30 states have call successors, (30), 21 states have call predecessors, (30), 28 states have return successors, (40), 38 states have call predecessors, (40), 24 states have call successors, (40) [2021-08-30 19:11:41,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 417 transitions. [2021-08-30 19:11:41,010 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 417 transitions. Word has length 46 [2021-08-30 19:11:41,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:41,010 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 417 transitions. [2021-08-30 19:11:41,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 3 states have call successors, (9) [2021-08-30 19:11:41,011 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 417 transitions. [2021-08-30 19:11:41,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-08-30 19:11:41,012 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:41,012 INFO L513 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] [2021-08-30 19:11:41,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:41,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:41,221 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:41,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:41,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1580928350, now seen corresponding path program 1 times [2021-08-30 19:11:41,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:41,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369523361] [2021-08-30 19:11:41,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:41,222 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:41,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:41,223 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:41,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-30 19:11:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:41,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-30 19:11:41,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:41,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:41,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:41,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:41,588 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:41,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369523361] [2021-08-30 19:11:41,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369523361] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:41,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:41,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-30 19:11:41,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852545473] [2021-08-30 19:11:41,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 19:11:41,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:41,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 19:11:41,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-30 19:11:41,591 INFO L87 Difference]: Start difference. First operand 314 states and 417 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-08-30 19:11:41,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:41,828 INFO L93 Difference]: Finished difference Result 308 states and 405 transitions. [2021-08-30 19:11:41,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 19:11:41,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 47 [2021-08-30 19:11:41,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:41,830 INFO L225 Difference]: With dead ends: 308 [2021-08-30 19:11:41,830 INFO L226 Difference]: Without dead ends: 272 [2021-08-30 19:11:41,830 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.24ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-30 19:11:41,830 INFO L928 BasicCegarLoop]: 49 mSDtfsCounter, 267 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 178.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.32ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 225.71ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:41,831 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 51 Invalid, 253 Unknown, 0 Unchecked, 1.32ms Time], IncrementalHoareTripleChecker [9 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 225.71ms Time] [2021-08-30 19:11:41,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-08-30 19:11:41,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 242. [2021-08-30 19:11:41,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 198 states have (on average 1.378787878787879) internal successors, (273), 201 states have internal predecessors, (273), 27 states have call successors, (27), 19 states have call predecessors, (27), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-30 19:11:41,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 321 transitions. [2021-08-30 19:11:41,842 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 321 transitions. Word has length 47 [2021-08-30 19:11:41,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:41,843 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 321 transitions. [2021-08-30 19:11:41,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-08-30 19:11:41,843 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 321 transitions. [2021-08-30 19:11:41,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-30 19:11:41,844 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:41,844 INFO L513 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] [2021-08-30 19:11:41,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:42,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:42,056 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:42,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:42,056 INFO L82 PathProgramCache]: Analyzing trace with hash 479956528, now seen corresponding path program 1 times [2021-08-30 19:11:42,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:42,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535213272] [2021-08-30 19:11:42,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:42,057 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:42,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:42,058 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:42,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-30 19:11:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:42,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-30 19:11:42,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:42,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:42,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:42,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:42,408 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:42,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535213272] [2021-08-30 19:11:42,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535213272] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:42,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:42,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-30 19:11:42,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163365821] [2021-08-30 19:11:42,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 19:11:42,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:42,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 19:11:42,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 19:11:42,410 INFO L87 Difference]: Start difference. First operand 242 states and 321 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-30 19:11:42,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:42,730 INFO L93 Difference]: Finished difference Result 240 states and 317 transitions. [2021-08-30 19:11:42,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 19:11:42,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 53 [2021-08-30 19:11:42,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:42,732 INFO L225 Difference]: With dead ends: 240 [2021-08-30 19:11:42,732 INFO L226 Difference]: Without dead ends: 240 [2021-08-30 19:11:42,732 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 19:11:42,733 INFO L928 BasicCegarLoop]: 45 mSDtfsCounter, 9 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 249.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.46ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 307.56ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:42,733 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 86 Invalid, 479 Unknown, 0 Unchecked, 2.46ms Time], IncrementalHoareTripleChecker [4 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 307.56ms Time] [2021-08-30 19:11:42,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-08-30 19:11:42,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2021-08-30 19:11:42,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 197 states have (on average 1.3705583756345177) internal successors, (270), 199 states have internal predecessors, (270), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-30 19:11:42,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 317 transitions. [2021-08-30 19:11:42,740 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 317 transitions. Word has length 53 [2021-08-30 19:11:42,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:42,740 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 317 transitions. [2021-08-30 19:11:42,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-30 19:11:42,740 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 317 transitions. [2021-08-30 19:11:42,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-30 19:11:42,741 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:42,742 INFO L513 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] [2021-08-30 19:11:42,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:42,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:42,942 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:42,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:42,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1828872474, now seen corresponding path program 1 times [2021-08-30 19:11:42,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:42,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389691625] [2021-08-30 19:11:42,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:42,944 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:42,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:42,945 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:42,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-08-30 19:11:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:43,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-30 19:11:43,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:43,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:43,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:43,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:43,603 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:43,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389691625] [2021-08-30 19:11:43,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1389691625] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:43,603 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:43,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2021-08-30 19:11:43,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348670219] [2021-08-30 19:11:43,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-30 19:11:43,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:43,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-30 19:11:43,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-08-30 19:11:43,605 INFO L87 Difference]: Start difference. First operand 240 states and 317 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-08-30 19:11:44,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:44,483 INFO L93 Difference]: Finished difference Result 245 states and 318 transitions. [2021-08-30 19:11:44,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-30 19:11:44,484 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 51 [2021-08-30 19:11:44,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:44,485 INFO L225 Difference]: With dead ends: 245 [2021-08-30 19:11:44,485 INFO L226 Difference]: Without dead ends: 245 [2021-08-30 19:11:44,486 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 136.80ms TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-08-30 19:11:44,486 INFO L928 BasicCegarLoop]: 35 mSDtfsCounter, 587 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 632.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.72ms SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 769.64ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:44,487 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [593 Valid, 38 Invalid, 1323 Unknown, 0 Unchecked, 8.72ms Time], IncrementalHoareTripleChecker [152 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 769.64ms Time] [2021-08-30 19:11:44,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-08-30 19:11:44,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 240. [2021-08-30 19:11:44,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 197 states have (on average 1.3604060913705585) internal successors, (268), 199 states have internal predecessors, (268), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-30 19:11:44,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 315 transitions. [2021-08-30 19:11:44,508 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 315 transitions. Word has length 51 [2021-08-30 19:11:44,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:44,508 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 315 transitions. [2021-08-30 19:11:44,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-08-30 19:11:44,509 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 315 transitions. [2021-08-30 19:11:44,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-30 19:11:44,510 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:44,510 INFO L513 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] [2021-08-30 19:11:44,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:44,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:44,721 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:44,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:44,722 INFO L82 PathProgramCache]: Analyzing trace with hash -2141770251, now seen corresponding path program 1 times [2021-08-30 19:11:44,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:44,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761559099] [2021-08-30 19:11:44,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:44,722 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:44,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:44,723 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:44,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-08-30 19:11:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:44,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-30 19:11:44,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:45,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:45,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:45,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:45,453 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:45,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761559099] [2021-08-30 19:11:45,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761559099] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:45,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:45,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2021-08-30 19:11:45,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502220933] [2021-08-30 19:11:45,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-30 19:11:45,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:45,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-30 19:11:45,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-08-30 19:11:45,455 INFO L87 Difference]: Start difference. First operand 240 states and 315 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-08-30 19:11:46,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:46,151 INFO L93 Difference]: Finished difference Result 238 states and 309 transitions. [2021-08-30 19:11:46,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-30 19:11:46,152 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 53 [2021-08-30 19:11:46,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:46,153 INFO L225 Difference]: With dead ends: 238 [2021-08-30 19:11:46,153 INFO L226 Difference]: Without dead ends: 238 [2021-08-30 19:11:46,153 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 96.15ms TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-08-30 19:11:46,154 INFO L928 BasicCegarLoop]: 34 mSDtfsCounter, 574 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 513.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.54ms SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 642.09ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:46,154 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 38 Invalid, 1035 Unknown, 0 Unchecked, 6.54ms Time], IncrementalHoareTripleChecker [82 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 642.09ms Time] [2021-08-30 19:11:46,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-08-30 19:11:46,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2021-08-30 19:11:46,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 195 states have (on average 1.3435897435897435) internal successors, (262), 197 states have internal predecessors, (262), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-08-30 19:11:46,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 309 transitions. [2021-08-30 19:11:46,160 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 309 transitions. Word has length 53 [2021-08-30 19:11:46,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:46,161 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 309 transitions. [2021-08-30 19:11:46,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 6 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2021-08-30 19:11:46,161 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 309 transitions. [2021-08-30 19:11:46,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-30 19:11:46,162 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:46,162 INFO L513 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] [2021-08-30 19:11:46,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:46,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:46,374 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:46,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:46,374 INFO L82 PathProgramCache]: Analyzing trace with hash 305745141, now seen corresponding path program 1 times [2021-08-30 19:11:46,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:46,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037151986] [2021-08-30 19:11:46,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:46,375 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:46,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:46,376 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:46,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-08-30 19:11:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:46,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-30 19:11:46,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:46,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:46,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:46,930 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:46,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037151986] [2021-08-30 19:11:46,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037151986] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:46,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:46,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 15 [2021-08-30 19:11:46,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551780687] [2021-08-30 19:11:46,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-30 19:11:46,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:46,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-30 19:11:46,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-08-30 19:11:46,932 INFO L87 Difference]: Start difference. First operand 238 states and 309 transitions. Second operand has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-30 19:11:48,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:48,378 INFO L93 Difference]: Finished difference Result 266 states and 337 transitions. [2021-08-30 19:11:48,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-30 19:11:48,379 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 53 [2021-08-30 19:11:48,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:48,380 INFO L225 Difference]: With dead ends: 266 [2021-08-30 19:11:48,380 INFO L226 Difference]: Without dead ends: 210 [2021-08-30 19:11:48,380 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 137.23ms TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2021-08-30 19:11:48,381 INFO L928 BasicCegarLoop]: 45 mSDtfsCounter, 11 mSDsluCounter, 2838 mSDsCounter, 0 mSdLazyCounter, 2802 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1124.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 2804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.80ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1375.90ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:48,381 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 509 Invalid, 2804 Unknown, 0 Unchecked, 10.80ms Time], IncrementalHoareTripleChecker [2 Valid, 2802 Invalid, 0 Unknown, 0 Unchecked, 1375.90ms Time] [2021-08-30 19:11:48,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-08-30 19:11:48,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2021-08-30 19:11:48,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 171 states have (on average 1.345029239766082) internal successors, (230), 173 states have internal predecessors, (230), 24 states have call successors, (24), 17 states have call predecessors, (24), 14 states have return successors, (19), 19 states have call predecessors, (19), 18 states have call successors, (19) [2021-08-30 19:11:48,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 273 transitions. [2021-08-30 19:11:48,387 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 273 transitions. Word has length 53 [2021-08-30 19:11:48,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:48,387 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 273 transitions. [2021-08-30 19:11:48,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-30 19:11:48,388 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 273 transitions. [2021-08-30 19:11:48,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-30 19:11:48,389 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:48,389 INFO L513 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] [2021-08-30 19:11:48,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:48,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:48,601 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:48,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:48,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1690938736, now seen corresponding path program 1 times [2021-08-30 19:11:48,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:48,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523598118] [2021-08-30 19:11:48,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:48,602 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:48,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:48,603 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:48,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-08-30 19:11:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:48,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-30 19:11:48,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:48,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:48,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:48,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:48,958 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:48,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523598118] [2021-08-30 19:11:48,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523598118] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:48,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:48,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-30 19:11:48,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960714987] [2021-08-30 19:11:48,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 19:11:48,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:48,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 19:11:48,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 19:11:48,961 INFO L87 Difference]: Start difference. First operand 210 states and 273 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-30 19:11:49,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:49,347 INFO L93 Difference]: Finished difference Result 203 states and 263 transitions. [2021-08-30 19:11:49,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 19:11:49,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 57 [2021-08-30 19:11:49,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:49,349 INFO L225 Difference]: With dead ends: 203 [2021-08-30 19:11:49,349 INFO L226 Difference]: Without dead ends: 203 [2021-08-30 19:11:49,349 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.55ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 19:11:49,350 INFO L928 BasicCegarLoop]: 41 mSDtfsCounter, 16 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 299.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 370.63ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:49,350 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 162 Invalid, 817 Unknown, 0 Unchecked, 2.34ms Time], IncrementalHoareTripleChecker [0 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 370.63ms Time] [2021-08-30 19:11:49,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-08-30 19:11:49,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2021-08-30 19:11:49,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 164 states have (on average 1.3414634146341464) internal successors, (220), 166 states have internal predecessors, (220), 24 states have call successors, (24), 17 states have call predecessors, (24), 14 states have return successors, (19), 19 states have call predecessors, (19), 18 states have call successors, (19) [2021-08-30 19:11:49,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 263 transitions. [2021-08-30 19:11:49,356 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 263 transitions. Word has length 57 [2021-08-30 19:11:49,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:49,356 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 263 transitions. [2021-08-30 19:11:49,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-30 19:11:49,356 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 263 transitions. [2021-08-30 19:11:49,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-30 19:11:49,357 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:49,357 INFO L513 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] [2021-08-30 19:11:49,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:49,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:49,565 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:49,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:49,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1650215593, now seen corresponding path program 1 times [2021-08-30 19:11:49,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:49,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224071338] [2021-08-30 19:11:49,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:49,566 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:49,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:49,568 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:49,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-08-30 19:11:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:49,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-30 19:11:49,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:49,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:49,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:50,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:50,142 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:50,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224071338] [2021-08-30 19:11:50,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224071338] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:50,143 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:50,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2021-08-30 19:11:50,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327091137] [2021-08-30 19:11:50,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-30 19:11:50,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:50,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-30 19:11:50,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-08-30 19:11:50,145 INFO L87 Difference]: Start difference. First operand 203 states and 263 transitions. Second operand has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-30 19:11:51,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:51,395 INFO L93 Difference]: Finished difference Result 245 states and 309 transitions. [2021-08-30 19:11:51,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-30 19:11:51,396 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 54 [2021-08-30 19:11:51,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:51,397 INFO L225 Difference]: With dead ends: 245 [2021-08-30 19:11:51,397 INFO L226 Difference]: Without dead ends: 213 [2021-08-30 19:11:51,398 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 159.06ms TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-08-30 19:11:51,398 INFO L928 BasicCegarLoop]: 41 mSDtfsCounter, 16 mSDsluCounter, 2593 mSDsCounter, 0 mSdLazyCounter, 2651 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 952.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 2659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.84ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1173.16ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:51,399 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 456 Invalid, 2659 Unknown, 0 Unchecked, 7.84ms Time], IncrementalHoareTripleChecker [8 Valid, 2651 Invalid, 0 Unknown, 0 Unchecked, 1173.16ms Time] [2021-08-30 19:11:51,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-08-30 19:11:51,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 201. [2021-08-30 19:11:51,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 163 states have (on average 1.343558282208589) internal successors, (219), 165 states have internal predecessors, (219), 23 states have call successors, (23), 17 states have call predecessors, (23), 14 states have return successors, (18), 18 states have call predecessors, (18), 17 states have call successors, (18) [2021-08-30 19:11:51,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 260 transitions. [2021-08-30 19:11:51,405 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 260 transitions. Word has length 54 [2021-08-30 19:11:51,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:51,406 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 260 transitions. [2021-08-30 19:11:51,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-30 19:11:51,406 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 260 transitions. [2021-08-30 19:11:51,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-08-30 19:11:51,407 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:51,407 INFO L513 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] [2021-08-30 19:11:51,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:51,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:51,629 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:51,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:51,629 INFO L82 PathProgramCache]: Analyzing trace with hash 973628382, now seen corresponding path program 1 times [2021-08-30 19:11:51,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:51,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1839341097] [2021-08-30 19:11:51,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:51,630 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:51,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:51,631 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:51,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-08-30 19:11:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:51,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-30 19:11:51,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:51,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:51,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:51,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:51,971 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:51,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1839341097] [2021-08-30 19:11:51,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1839341097] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:51,972 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:51,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-30 19:11:51,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388541283] [2021-08-30 19:11:51,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 19:11:51,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:51,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 19:11:51,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-30 19:11:51,974 INFO L87 Difference]: Start difference. First operand 201 states and 260 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-08-30 19:11:52,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:52,187 INFO L93 Difference]: Finished difference Result 203 states and 260 transitions. [2021-08-30 19:11:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 19:11:52,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2021-08-30 19:11:52,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:52,188 INFO L225 Difference]: With dead ends: 203 [2021-08-30 19:11:52,189 INFO L226 Difference]: Without dead ends: 200 [2021-08-30 19:11:52,189 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.33ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-30 19:11:52,189 INFO L928 BasicCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 157.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.97ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 205.75ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:52,190 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 388 Unknown, 0 Unchecked, 0.97ms Time], IncrementalHoareTripleChecker [3 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 205.75ms Time] [2021-08-30 19:11:52,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-08-30 19:11:52,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2021-08-30 19:11:52,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 162 states have (on average 1.3209876543209877) internal successors, (214), 164 states have internal predecessors, (214), 23 states have call successors, (23), 17 states have call predecessors, (23), 14 states have return successors, (18), 18 states have call predecessors, (18), 17 states have call successors, (18) [2021-08-30 19:11:52,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 255 transitions. [2021-08-30 19:11:52,195 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 255 transitions. Word has length 60 [2021-08-30 19:11:52,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:52,195 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 255 transitions. [2021-08-30 19:11:52,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-08-30 19:11:52,196 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 255 transitions. [2021-08-30 19:11:52,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-30 19:11:52,197 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:52,197 INFO L513 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] [2021-08-30 19:11:52,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:52,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:52,408 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:52,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:52,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1570272846, now seen corresponding path program 1 times [2021-08-30 19:11:52,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:52,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173768793] [2021-08-30 19:11:52,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:52,409 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:52,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:52,410 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:52,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-08-30 19:11:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:52,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-30 19:11:52,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:52,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:52,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:53,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:53,156 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:53,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173768793] [2021-08-30 19:11:53,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [173768793] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:53,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:53,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 19 [2021-08-30 19:11:53,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062604731] [2021-08-30 19:11:53,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-30 19:11:53,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:53,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-30 19:11:53,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-08-30 19:11:53,159 INFO L87 Difference]: Start difference. First operand 200 states and 255 transitions. Second operand has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) [2021-08-30 19:11:54,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:54,432 INFO L93 Difference]: Finished difference Result 237 states and 296 transitions. [2021-08-30 19:11:54,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-30 19:11:54,433 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) Word has length 56 [2021-08-30 19:11:54,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:54,434 INFO L225 Difference]: With dead ends: 237 [2021-08-30 19:11:54,434 INFO L226 Difference]: Without dead ends: 216 [2021-08-30 19:11:54,434 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 192.57ms TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2021-08-30 19:11:54,435 INFO L928 BasicCegarLoop]: 40 mSDtfsCounter, 12 mSDsluCounter, 2643 mSDsCounter, 0 mSdLazyCounter, 2749 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 983.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 2756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.25ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1210.99ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:54,435 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 439 Invalid, 2756 Unknown, 0 Unchecked, 7.25ms Time], IncrementalHoareTripleChecker [7 Valid, 2749 Invalid, 0 Unknown, 0 Unchecked, 1210.99ms Time] [2021-08-30 19:11:54,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-08-30 19:11:54,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 198. [2021-08-30 19:11:54,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 161 states have (on average 1.3167701863354038) internal successors, (212), 163 states have internal predecessors, (212), 22 states have call successors, (22), 17 states have call predecessors, (22), 14 states have return successors, (17), 17 states have call predecessors, (17), 16 states have call successors, (17) [2021-08-30 19:11:54,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 251 transitions. [2021-08-30 19:11:54,442 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 251 transitions. Word has length 56 [2021-08-30 19:11:54,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:54,442 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 251 transitions. [2021-08-30 19:11:54,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 1 states have call successors, (9) [2021-08-30 19:11:54,443 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 251 transitions. [2021-08-30 19:11:54,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-30 19:11:54,444 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:54,444 INFO L513 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] [2021-08-30 19:11:54,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:54,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:54,656 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:54,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:54,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1689207293, now seen corresponding path program 1 times [2021-08-30 19:11:54,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:54,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145974896] [2021-08-30 19:11:54,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:54,657 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:54,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:54,658 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:54,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-08-30 19:11:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:54,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-30 19:11:54,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:54,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:54,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:55,133 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:55,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145974896] [2021-08-30 19:11:55,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2145974896] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:55,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:55,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-08-30 19:11:55,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436682444] [2021-08-30 19:11:55,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-30 19:11:55,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:55,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-30 19:11:55,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-08-30 19:11:55,135 INFO L87 Difference]: Start difference. First operand 198 states and 251 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 10 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-30 19:11:56,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:56,057 INFO L93 Difference]: Finished difference Result 283 states and 346 transitions. [2021-08-30 19:11:56,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-30 19:11:56,057 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 10 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) Word has length 55 [2021-08-30 19:11:56,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:56,058 INFO L225 Difference]: With dead ends: 283 [2021-08-30 19:11:56,058 INFO L226 Difference]: Without dead ends: 269 [2021-08-30 19:11:56,059 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 85.13ms TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-08-30 19:11:56,059 INFO L928 BasicCegarLoop]: 40 mSDtfsCounter, 222 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 718.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 1699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.83ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 865.71ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:56,059 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 115 Invalid, 1699 Unknown, 0 Unchecked, 6.83ms Time], IncrementalHoareTripleChecker [38 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 865.71ms Time] [2021-08-30 19:11:56,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-08-30 19:11:56,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 204. [2021-08-30 19:11:56,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 166 states have (on average 1.3072289156626506) internal successors, (217), 169 states have internal predecessors, (217), 22 states have call successors, (22), 17 states have call predecessors, (22), 15 states have return successors, (19), 17 states have call predecessors, (19), 16 states have call successors, (19) [2021-08-30 19:11:56,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 258 transitions. [2021-08-30 19:11:56,065 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 258 transitions. Word has length 55 [2021-08-30 19:11:56,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:56,066 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 258 transitions. [2021-08-30 19:11:56,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 10 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 1 states have call successors, (6) [2021-08-30 19:11:56,066 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 258 transitions. [2021-08-30 19:11:56,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-30 19:11:56,072 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:56,072 INFO L513 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] [2021-08-30 19:11:56,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:56,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:56,277 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:56,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:56,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1776480712, now seen corresponding path program 1 times [2021-08-30 19:11:56,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:56,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258250945] [2021-08-30 19:11:56,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:56,278 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:56,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:56,279 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:56,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-08-30 19:11:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 19:11:56,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-30 19:11:56,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 19:11:56,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:56,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 19:11:56,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 19:11:56,788 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-30 19:11:56,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258250945] [2021-08-30 19:11:56,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258250945] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-30 19:11:56,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-30 19:11:56,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2021-08-30 19:11:56,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294247197] [2021-08-30 19:11:56,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-30 19:11:56,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-30 19:11:56,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-30 19:11:56,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-08-30 19:11:56,790 INFO L87 Difference]: Start difference. First operand 204 states and 258 transitions. Second operand has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-30 19:11:58,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 19:11:58,118 INFO L93 Difference]: Finished difference Result 237 states and 291 transitions. [2021-08-30 19:11:58,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-30 19:11:58,118 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) Word has length 55 [2021-08-30 19:11:58,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 19:11:58,119 INFO L225 Difference]: With dead ends: 237 [2021-08-30 19:11:58,119 INFO L226 Difference]: Without dead ends: 188 [2021-08-30 19:11:58,120 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 159.63ms TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-08-30 19:11:58,120 INFO L928 BasicCegarLoop]: 37 mSDtfsCounter, 16 mSDsluCounter, 2819 mSDsCounter, 0 mSdLazyCounter, 2866 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1007.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 2873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.86ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1246.05ms IncrementalHoareTripleChecker+Time [2021-08-30 19:11:58,121 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 477 Invalid, 2873 Unknown, 0 Unchecked, 7.86ms Time], IncrementalHoareTripleChecker [7 Valid, 2866 Invalid, 0 Unknown, 0 Unchecked, 1246.05ms Time] [2021-08-30 19:11:58,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-08-30 19:11:58,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 182. [2021-08-30 19:11:58,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 145 states have (on average 1.2206896551724138) internal successors, (177), 148 states have internal predecessors, (177), 21 states have call successors, (21), 17 states have call predecessors, (21), 15 states have return successors, (17), 16 states have call predecessors, (17), 15 states have call successors, (17) [2021-08-30 19:11:58,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 215 transitions. [2021-08-30 19:11:58,126 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 215 transitions. Word has length 55 [2021-08-30 19:11:58,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 19:11:58,126 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 215 transitions. [2021-08-30 19:11:58,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 1 states have call successors, (7) [2021-08-30 19:11:58,126 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 215 transitions. [2021-08-30 19:11:58,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-30 19:11:58,127 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 19:11:58,127 INFO L513 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] [2021-08-30 19:11:58,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:58,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:58,339 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-08-30 19:11:58,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 19:11:58,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1355183133, now seen corresponding path program 1 times [2021-08-30 19:11:58,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-30 19:11:58,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946874939] [2021-08-30 19:11:58,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 19:11:58,340 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-30 19:11:58,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-30 19:11:58,342 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-30 19:11:58,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-08-30 19:11:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 19:11:58,491 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-30 19:11:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 19:11:58,715 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-30 19:11:58,716 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-30 19:11:58,729 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2021-08-30 19:11:58,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2021-08-30 19:11:58,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-08-30 19:11:58,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-30 19:11:58,956 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 19:11:59,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 07:11:59 BoogieIcfgContainer [2021-08-30 19:11:59,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 19:11:59,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 19:11:59,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 19:11:59,070 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 19:11:59,071 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 07:11:31" (3/4) ... [2021-08-30 19:11:59,073 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-30 19:11:59,073 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 19:11:59,074 INFO L158 Benchmark]: Toolchain (without parser) took 28583.23ms. Allocated memory was 58.7MB in the beginning and 136.3MB in the end (delta: 77.6MB). Free memory was 37.0MB in the beginning and 49.3MB in the end (delta: -12.4MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2021-08-30 19:11:59,074 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 58.7MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 19:11:59,075 INFO L158 Benchmark]: CACSL2BoogieTranslator took 481.77ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 36.8MB in the beginning and 56.2MB in the end (delta: -19.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-30 19:11:59,075 INFO L158 Benchmark]: Boogie Preprocessor took 71.73ms. Allocated memory is still 77.6MB. Free memory was 56.2MB in the beginning and 52.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 19:11:59,075 INFO L158 Benchmark]: RCFGBuilder took 555.78ms. Allocated memory is still 77.6MB. Free memory was 52.9MB in the beginning and 47.3MB in the end (delta: 5.6MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2021-08-30 19:11:59,079 INFO L158 Benchmark]: TraceAbstraction took 27464.09ms. Allocated memory was 77.6MB in the beginning and 136.3MB in the end (delta: 58.7MB). Free memory was 46.9MB in the beginning and 49.3MB in the end (delta: -2.4MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2021-08-30 19:11:59,079 INFO L158 Benchmark]: Witness Printer took 3.75ms. Allocated memory is still 136.3MB. Free memory is still 49.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 19:11:59,080 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 58.7MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 481.77ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 36.8MB in the beginning and 56.2MB in the end (delta: -19.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.73ms. Allocated memory is still 77.6MB. Free memory was 56.2MB in the beginning and 52.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.78ms. Allocated memory is still 77.6MB. Free memory was 52.9MB in the beginning and 47.3MB in the end (delta: 5.6MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * TraceAbstraction took 27464.09ms. Allocated memory was 77.6MB in the beginning and 136.3MB in the end (delta: 58.7MB). Free memory was 46.9MB in the beginning and 49.3MB in the end (delta: -2.4MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. * Witness Printer took 3.75ms. Allocated memory is still 136.3MB. Free memory is still 49.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1013. Possible FailurePath: [L23] int KernelMode ; [L24] int Executive ; [L25] int DevicePowerState ; [L26] int s ; [L27] int UNLOADED ; [L28] int NP ; [L29] int DC ; [L30] int SKIP1 ; [L31] int SKIP2 ; [L32] int MPR1 ; [L33] int MPR3 ; [L34] int IPC ; [L35] int pended ; [L36] int compFptr ; [L37] int compRegistered ; [L38] int lowerDriverReturn ; [L39] int setEventCalled ; [L40] int customIrp ; [L41] int myStatus ; VAL [\old(compFptr)=25, \old(compRegistered)=9, \old(customIrp)=34, \old(DC)=17, \old(DevicePowerState)=27, \old(Executive)=19, \old(IPC)=32, \old(KernelMode)=16, \old(lowerDriverReturn)=18, \old(MPR1)=35, \old(MPR3)=30, \old(myStatus)=8, \old(NP)=33, \old(pended)=31, \old(s)=20, \old(setEventCalled)=28, \old(SKIP1)=15, \old(SKIP2)=24, \old(UNLOADED)=13, 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] [L294] int status ; [L295] int irp = __VERIFIER_nondet_int() ; [L296] int pirp ; [L297] int pirp__IoStatus__Status ; [L298] int irp_choice = __VERIFIER_nondet_int() ; [L299] int devobj = __VERIFIER_nondet_int() ; [L300] int __cil_tmp8 ; [L302] KernelMode = 0 [L303] Executive = 0 [L304] DevicePowerState = 1 [L305] s = 0 [L306] UNLOADED = 0 [L307] NP = 0 [L308] DC = 0 [L309] SKIP1 = 0 [L310] SKIP2 = 0 [L311] MPR1 = 0 [L312] MPR3 = 0 [L313] IPC = 0 [L314] pended = 0 [L315] compFptr = 0 [L316] compRegistered = 0 [L317] lowerDriverReturn = 0 [L318] setEventCalled = 0 [L319] customIrp = 0 [L320] myStatus = 0 [L324] status = 0 [L325] 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=37, Executive=0, IPC=0, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=38, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, UNLOADED=0] [L326] 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] [L61] UNLOADED = 0 [L62] NP = 1 [L63] DC = 2 [L64] SKIP1 = 3 [L65] SKIP2 = 4 [L66] MPR1 = 5 [L67] MPR3 = 6 [L68] IPC = 7 [L69] s = UNLOADED [L70] pended = 0 [L71] compFptr = 0 [L72] compRegistered = 0 [L73] lowerDriverReturn = 0 [L74] setEventCalled = 0 [L75] 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] [L326] 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=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L328] COND TRUE status >= 0 [L329] s = NP [L330] customIrp = 0 [L331] setEventCalled = customIrp [L332] lowerDriverReturn = setEventCalled [L333] compRegistered = lowerDriverReturn [L334] pended = compRegistered [L335] pirp__IoStatus__Status = 0 [L336] 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=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L337] 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=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L342] 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] [L47] s = NP [L48] pended = 0 [L49] compFptr = 0 [L50] compRegistered = 0 [L51] lowerDriverReturn = 0 [L52] setEventCalled = 0 [L53] 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] [L342] 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=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L345] COND FALSE !(status < 0) [L349] int tmp_ndt_1; [L350] tmp_ndt_1 = __VERIFIER_nondet_int() [L351] COND FALSE !(tmp_ndt_1 == 0) [L354] int tmp_ndt_2; [L355] tmp_ndt_2 = __VERIFIER_nondet_int() [L356] COND FALSE !(tmp_ndt_2 == 1) [L359] int tmp_ndt_3; [L360] tmp_ndt_3 = __VERIFIER_nondet_int() [L361] 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=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L388] CALL, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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] [L80] int devExt ; [L81] int irpStack ; [L82] int status ; [L83] int event = __VERIFIER_nondet_int() ; [L84] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L85] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L86] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L87] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L88] int devExt__Started ; [L89] int devExt__Removed ; [L90] int devExt__SurpriseRemoved ; [L91] int Irp__IoStatus__Status ; [L92] int Irp__IoStatus__Information ; [L93] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L94] int irpSp ; [L95] int nextIrpSp ; [L96] int nextIrpSp__Control ; [L97] int irpSp___0 ; [L98] int irpSp__Context ; [L99] int irpSp__Control ; [L100] long __cil_tmp23 ; [L103] status = 0 [L104] devExt = DeviceObject__DeviceExtension [L105] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=41, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, 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] [L106] COND FALSE !(irpStack__MinorFunction == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=41, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, 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] [L109] COND FALSE !(irpStack__MinorFunction == 23) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=41, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, 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] [L112] COND TRUE irpStack__MinorFunction == 2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=41, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, 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] [L236] devExt__Removed = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, 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] [L237] COND TRUE s == NP [L238] s = SKIP1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, 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] [L245] Irp__CurrentLocation ++ [L246] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, 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] [L247] CALL IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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] [L483] int returnVal2 ; [L484] int compRetStatus ; [L485] int lcontext = __VERIFIER_nondet_int() ; [L486] long long __cil_tmp7 ; VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L489] COND FALSE !(\read(compRegistered)) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L502] int tmp_ndt_6; [L503] tmp_ndt_6 = __VERIFIER_nondet_int() [L504] COND FALSE !(tmp_ndt_6 == 0) [L507] int tmp_ndt_7; [L508] tmp_ndt_7 = __VERIFIER_nondet_int() [L509] COND TRUE tmp_ndt_7 == 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L518] returnVal2 = -1073741823 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=3221225473, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L528] COND FALSE !(s == NP) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=3221225473, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L532] COND FALSE !(s == MPR1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=3221225473, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L541] COND TRUE s == SKIP1 [L542] s = SKIP2 [L543] lowerDriverReturn = returnVal2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=3221225473, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L551] return (returnVal2); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, returnVal2=3221225473, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L247] RET IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IofCallDriver(devExt__TopOfStack, Irp)=-1073741823, IPC=7, Irp=38, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L248] status = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L290] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \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=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L388] 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=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KbFilter_PnP(devobj, pirp)=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L388] status = KbFilter_PnP(devobj, pirp) [L412] 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=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L420] 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=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L428] 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=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L429] 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=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L430] 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=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L440] 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=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L447] 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=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L452] 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=37, Executive=0, IPC=7, irp=38, irp_choice=2147483648, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L453] 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=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1013] reach_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=3221225473, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - UnprovableResult [Line: 293]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 244 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 27289.66ms, OverallIterations: 20, TraceHistogramMax: 1, EmptinessCheckTime: 62.31ms, AutomataDifference: 13156.43ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 21.16ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3934 SdHoareTripleChecker+Valid, 12194.77ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3913 mSDsluCounter, 2992 SdHoareTripleChecker+Invalid, 9856.46ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16540 mSDsCounter, 437 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21745 IncrementalHoareTripleChecker+Invalid, 22182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 437 mSolverCounterUnsat, 899 mSDtfsCounter, 21745 mSolverCounterSat, 99.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1726 GetRequests, 1580 SyntacticMatches, 1 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 1109.27ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=338occurred in iteration=4, InterpolantAutomatonStates: 147, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 263.91ms AutomataMinimizationTime, 19 MinimizatonAttempts, 215 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 508.30ms SsaConstructionTime, 1457.99ms SatisfiabilityAnalysisTime, 6315.29ms InterpolantComputationTime, 916 NumberOfCodeBlocks, 916 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1682 ConstructedInterpolants, 0 QuantifiedInterpolants, 4159 SizeOfPredicates, 31 NumberOfNonLiveVariables, 5929 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 38 InterpolantComputations, 38 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 could not prove your program: unable to determine feasibility of some traces [2021-08-30 19:11:59,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...