./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 791161d1 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/diskperf_simpl1.cil.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 48b194ce99c1fa112b5c4d4ed6cc0216b9fbb33f6f6efd57d62e9c27b1f7eb5c --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 06:43:34,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 06:43:34,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 06:43:34,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 06:43:34,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 06:43:34,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 06:43:34,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 06:43:34,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 06:43:34,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 06:43:34,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 06:43:34,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 06:43:34,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 06:43:34,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 06:43:34,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 06:43:34,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 06:43:34,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 06:43:34,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 06:43:34,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 06:43:34,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 06:43:34,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 06:43:34,979 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 06:43:34,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 06:43:34,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 06:43:34,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 06:43:34,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 06:43:34,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 06:43:34,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 06:43:34,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 06:43:34,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 06:43:34,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 06:43:34,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 06:43:34,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 06:43:34,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 06:43:34,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 06:43:34,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 06:43:34,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 06:43:34,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 06:43:34,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 06:43:34,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 06:43:34,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 06:43:34,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 06:43:34,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 06:43:34,995 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-23 06:43:35,021 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 06:43:35,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 06:43:35,023 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 06:43:35,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 06:43:35,024 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 06:43:35,024 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 06:43:35,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 06:43:35,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 06:43:35,025 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 06:43:35,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 06:43:35,026 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 06:43:35,026 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 06:43:35,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 06:43:35,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 06:43:35,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 06:43:35,026 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-23 06:43:35,026 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-23 06:43:35,026 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-23 06:43:35,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 06:43:35,027 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 06:43:35,027 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 06:43:35,027 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 06:43:35,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 06:43:35,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 06:43:35,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 06:43:35,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 06:43:35,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 06:43:35,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 06:43:35,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 06:43:35,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 06:43:35,029 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48b194ce99c1fa112b5c4d4ed6cc0216b9fbb33f6f6efd57d62e9c27b1f7eb5c [2022-07-23 06:43:35,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 06:43:35,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 06:43:35,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 06:43:35,268 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 06:43:35,269 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 06:43:35,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c [2022-07-23 06:43:35,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1635cebd/3592da2df9554fb0b81b66507fd730f7/FLAGfc8c93b61 [2022-07-23 06:43:35,753 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 06:43:35,754 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c [2022-07-23 06:43:35,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1635cebd/3592da2df9554fb0b81b66507fd730f7/FLAGfc8c93b61 [2022-07-23 06:43:36,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1635cebd/3592da2df9554fb0b81b66507fd730f7 [2022-07-23 06:43:36,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 06:43:36,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 06:43:36,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 06:43:36,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 06:43:36,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 06:43:36,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 06:43:36" (1/1) ... [2022-07-23 06:43:36,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9d6bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:36, skipping insertion in model container [2022-07-23 06:43:36,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 06:43:36" (1/1) ... [2022-07-23 06:43:36,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 06:43:36,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 06:43:36,289 WARN L230 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/diskperf_simpl1.cil.c[2072,2085] [2022-07-23 06:43:36,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 06:43:36,411 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 06:43:36,434 WARN L230 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/diskperf_simpl1.cil.c[2072,2085] [2022-07-23 06:43:36,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 06:43:36,505 INFO L208 MainTranslator]: Completed translation [2022-07-23 06:43:36,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:36 WrapperNode [2022-07-23 06:43:36,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 06:43:36,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 06:43:36,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 06:43:36,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 06:43:36,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:36" (1/1) ... [2022-07-23 06:43:36,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:36" (1/1) ... [2022-07-23 06:43:36,565 INFO L137 Inliner]: procedures = 38, calls = 66, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 755 [2022-07-23 06:43:36,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 06:43:36,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 06:43:36,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 06:43:36,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 06:43:36,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:36" (1/1) ... [2022-07-23 06:43:36,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:36" (1/1) ... [2022-07-23 06:43:36,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:36" (1/1) ... [2022-07-23 06:43:36,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:36" (1/1) ... [2022-07-23 06:43:36,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:36" (1/1) ... [2022-07-23 06:43:36,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:36" (1/1) ... [2022-07-23 06:43:36,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:36" (1/1) ... [2022-07-23 06:43:36,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 06:43:36,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 06:43:36,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 06:43:36,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 06:43:36,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:36" (1/1) ... [2022-07-23 06:43:36,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 06:43:36,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 06:43:36,621 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) [2022-07-23 06:43:36,623 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 [2022-07-23 06:43:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 06:43:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-07-23 06:43:36,656 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-07-23 06:43:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-07-23 06:43:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-07-23 06:43:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-07-23 06:43:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-07-23 06:43:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2022-07-23 06:43:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2022-07-23 06:43:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfForwardIrpSynchronous [2022-07-23 06:43:36,669 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfForwardIrpSynchronous [2022-07-23 06:43:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-07-23 06:43:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-07-23 06:43:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 06:43:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-07-23 06:43:36,670 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-07-23 06:43:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfIrpCompletion [2022-07-23 06:43:36,671 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfIrpCompletion [2022-07-23 06:43:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfIoCompletion [2022-07-23 06:43:36,671 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfIoCompletion [2022-07-23 06:43:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 06:43:36,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 06:43:36,819 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 06:43:36,820 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 06:43:36,825 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:43:36,883 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-07-23 06:43:36,883 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-07-23 06:43:36,885 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:43:36,900 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-07-23 06:43:36,900 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-07-23 06:43:36,923 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:43:36,927 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:43:36,937 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:43:37,162 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2022-07-23 06:43:37,162 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2022-07-23 06:43:37,162 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2022-07-23 06:43:37,162 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2022-07-23 06:43:37,162 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume !false; [2022-07-23 06:43:37,163 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume false; [2022-07-23 06:43:37,164 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:43:37,188 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-07-23 06:43:37,188 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-07-23 06:43:37,222 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 06:43:37,228 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 06:43:37,228 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 06:43:37,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:43:37 BoogieIcfgContainer [2022-07-23 06:43:37,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 06:43:37,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 06:43:37,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 06:43:37,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 06:43:37,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 06:43:36" (1/3) ... [2022-07-23 06:43:37,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3432d91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 06:43:37, skipping insertion in model container [2022-07-23 06:43:37,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:43:36" (2/3) ... [2022-07-23 06:43:37,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3432d91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 06:43:37, skipping insertion in model container [2022-07-23 06:43:37,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:43:37" (3/3) ... [2022-07-23 06:43:37,236 INFO L111 eAbstractionObserver]: Analyzing ICFG diskperf_simpl1.cil.c [2022-07-23 06:43:37,246 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 06:43:37,246 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-23 06:43:37,283 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 06:43:37,287 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3d98eb8d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@cfca031 [2022-07-23 06:43:37,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-23 06:43:37,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 244 states, 188 states have (on average 1.4734042553191489) internal successors, (277), 206 states have internal predecessors, (277), 44 states have call successors, (44), 9 states have call predecessors, (44), 9 states have return successors, (44), 40 states have call predecessors, (44), 44 states have call successors, (44) [2022-07-23 06:43:37,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-23 06:43:37,295 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:37,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:37,296 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:37,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:37,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1705481022, now seen corresponding path program 1 times [2022-07-23 06:43:37,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:37,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415423584] [2022-07-23 06:43:37,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:37,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:37,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:37,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:37,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415423584] [2022-07-23 06:43:37,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415423584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:37,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:37,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:43:37,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599050912] [2022-07-23 06:43:37,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:37,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:43:37,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:37,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:43:37,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:37,483 INFO L87 Difference]: Start difference. First operand has 244 states, 188 states have (on average 1.4734042553191489) internal successors, (277), 206 states have internal predecessors, (277), 44 states have call successors, (44), 9 states have call predecessors, (44), 9 states have return successors, (44), 40 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:37,572 INFO L93 Difference]: Finished difference Result 417 states and 600 transitions. [2022-07-23 06:43:37,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:43:37,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-23 06:43:37,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:37,584 INFO L225 Difference]: With dead ends: 417 [2022-07-23 06:43:37,584 INFO L226 Difference]: Without dead ends: 413 [2022-07-23 06:43:37,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:37,588 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 328 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:37,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 619 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:43:37,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-07-23 06:43:37,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 397. [2022-07-23 06:43:37,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 316 states have (on average 1.4398734177215189) internal successors, (455), 328 states have internal predecessors, (455), 63 states have call successors, (63), 16 states have call predecessors, (63), 16 states have return successors, (61), 56 states have call predecessors, (61), 49 states have call successors, (61) [2022-07-23 06:43:37,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 579 transitions. [2022-07-23 06:43:37,661 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 579 transitions. Word has length 8 [2022-07-23 06:43:37,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:37,661 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 579 transitions. [2022-07-23 06:43:37,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,661 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 579 transitions. [2022-07-23 06:43:37,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-23 06:43:37,662 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:37,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:37,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 06:43:37,676 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:37,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:37,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1322410939, now seen corresponding path program 1 times [2022-07-23 06:43:37,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:37,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806174732] [2022-07-23 06:43:37,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:37,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:37,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:37,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:37,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806174732] [2022-07-23 06:43:37,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806174732] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:37,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:37,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 06:43:37,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747679] [2022-07-23 06:43:37,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:37,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:43:37,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:37,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:43:37,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:37,719 INFO L87 Difference]: Start difference. First operand 397 states and 579 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:37,783 INFO L93 Difference]: Finished difference Result 396 states and 578 transitions. [2022-07-23 06:43:37,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:43:37,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-23 06:43:37,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:37,789 INFO L225 Difference]: With dead ends: 396 [2022-07-23 06:43:37,789 INFO L226 Difference]: Without dead ends: 393 [2022-07-23 06:43:37,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:37,795 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 173 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:37,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 450 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:43:37,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-07-23 06:43:37,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-07-23 06:43:37,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 313 states have (on average 1.4089456869009584) internal successors, (441), 324 states have internal predecessors, (441), 63 states have call successors, (63), 16 states have call predecessors, (63), 16 states have return successors, (61), 56 states have call predecessors, (61), 49 states have call successors, (61) [2022-07-23 06:43:37,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 565 transitions. [2022-07-23 06:43:37,836 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 565 transitions. Word has length 9 [2022-07-23 06:43:37,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:37,837 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 565 transitions. [2022-07-23 06:43:37,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,837 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 565 transitions. [2022-07-23 06:43:37,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-23 06:43:37,837 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:37,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:37,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 06:43:37,838 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:37,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:37,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1925745618, now seen corresponding path program 1 times [2022-07-23 06:43:37,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:37,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493090973] [2022-07-23 06:43:37,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:37,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:37,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:37,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:37,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493090973] [2022-07-23 06:43:37,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493090973] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:37,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:37,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:43:37,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553065260] [2022-07-23 06:43:37,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:37,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:43:37,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:37,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:43:37,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:37,887 INFO L87 Difference]: Start difference. First operand 393 states and 565 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:37,938 INFO L93 Difference]: Finished difference Result 396 states and 567 transitions. [2022-07-23 06:43:37,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:43:37,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-23 06:43:37,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:37,944 INFO L225 Difference]: With dead ends: 396 [2022-07-23 06:43:37,944 INFO L226 Difference]: Without dead ends: 393 [2022-07-23 06:43:37,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:37,949 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 0 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:37,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 617 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:43:37,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-07-23 06:43:37,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-07-23 06:43:37,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 313 states have (on average 1.4057507987220448) internal successors, (440), 324 states have internal predecessors, (440), 63 states have call successors, (63), 16 states have call predecessors, (63), 16 states have return successors, (61), 56 states have call predecessors, (61), 49 states have call successors, (61) [2022-07-23 06:43:37,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 564 transitions. [2022-07-23 06:43:37,985 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 564 transitions. Word has length 13 [2022-07-23 06:43:37,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:37,985 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 564 transitions. [2022-07-23 06:43:37,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:37,986 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 564 transitions. [2022-07-23 06:43:37,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-23 06:43:37,986 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:37,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:37,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 06:43:37,987 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:37,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:37,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1077867276, now seen corresponding path program 1 times [2022-07-23 06:43:37,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:37,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558297758] [2022-07-23 06:43:37,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:37,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:38,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:38,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:38,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558297758] [2022-07-23 06:43:38,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558297758] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:38,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:38,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:43:38,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538334499] [2022-07-23 06:43:38,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:38,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:43:38,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:38,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:43:38,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:38,041 INFO L87 Difference]: Start difference. First operand 393 states and 564 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:38,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:38,134 INFO L93 Difference]: Finished difference Result 666 states and 990 transitions. [2022-07-23 06:43:38,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:43:38,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-23 06:43:38,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:38,137 INFO L225 Difference]: With dead ends: 666 [2022-07-23 06:43:38,137 INFO L226 Difference]: Without dead ends: 665 [2022-07-23 06:43:38,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:38,138 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 250 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:38,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 682 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:43:38,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-07-23 06:43:38,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 625. [2022-07-23 06:43:38,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 500 states have (on average 1.392) internal successors, (696), 503 states have internal predecessors, (696), 96 states have call successors, (96), 30 states have call predecessors, (96), 28 states have return successors, (148), 95 states have call predecessors, (148), 85 states have call successors, (148) [2022-07-23 06:43:38,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 940 transitions. [2022-07-23 06:43:38,158 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 940 transitions. Word has length 15 [2022-07-23 06:43:38,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:38,158 INFO L495 AbstractCegarLoop]: Abstraction has 625 states and 940 transitions. [2022-07-23 06:43:38,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:38,158 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 940 transitions. [2022-07-23 06:43:38,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-23 06:43:38,159 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:38,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:38,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 06:43:38,160 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:38,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:38,160 INFO L85 PathProgramCache]: Analyzing trace with hash -291957618, now seen corresponding path program 1 times [2022-07-23 06:43:38,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:38,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096447012] [2022-07-23 06:43:38,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:38,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:38,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:38,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:38,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096447012] [2022-07-23 06:43:38,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096447012] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:38,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:38,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:43:38,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779276303] [2022-07-23 06:43:38,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:38,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:43:38,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:38,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:43:38,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:38,198 INFO L87 Difference]: Start difference. First operand 625 states and 940 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:38,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:38,220 INFO L93 Difference]: Finished difference Result 949 states and 1438 transitions. [2022-07-23 06:43:38,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:43:38,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-23 06:43:38,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:38,224 INFO L225 Difference]: With dead ends: 949 [2022-07-23 06:43:38,224 INFO L226 Difference]: Without dead ends: 949 [2022-07-23 06:43:38,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:38,226 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 255 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:38,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 585 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:43:38,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-07-23 06:43:38,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 904. [2022-07-23 06:43:38,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 717 states have (on average 1.407252440725244) internal successors, (1009), 722 states have internal predecessors, (1009), 142 states have call successors, (142), 46 states have call predecessors, (142), 44 states have return successors, (231), 137 states have call predecessors, (231), 132 states have call successors, (231) [2022-07-23 06:43:38,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1382 transitions. [2022-07-23 06:43:38,263 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1382 transitions. Word has length 20 [2022-07-23 06:43:38,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:38,264 INFO L495 AbstractCegarLoop]: Abstraction has 904 states and 1382 transitions. [2022-07-23 06:43:38,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:38,264 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1382 transitions. [2022-07-23 06:43:38,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-23 06:43:38,265 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:38,265 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:38,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 06:43:38,266 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:38,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:38,266 INFO L85 PathProgramCache]: Analyzing trace with hash -175921107, now seen corresponding path program 1 times [2022-07-23 06:43:38,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:38,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400928566] [2022-07-23 06:43:38,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:38,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:38,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:38,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:38,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400928566] [2022-07-23 06:43:38,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400928566] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:38,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:38,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:43:38,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126224342] [2022-07-23 06:43:38,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:38,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:43:38,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:38,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:43:38,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:38,303 INFO L87 Difference]: Start difference. First operand 904 states and 1382 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:38,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:38,359 INFO L93 Difference]: Finished difference Result 915 states and 1397 transitions. [2022-07-23 06:43:38,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:43:38,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-07-23 06:43:38,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:38,362 INFO L225 Difference]: With dead ends: 915 [2022-07-23 06:43:38,363 INFO L226 Difference]: Without dead ends: 915 [2022-07-23 06:43:38,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:38,364 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 21 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:38,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 557 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:43:38,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-07-23 06:43:38,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 914. [2022-07-23 06:43:38,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 728 states have (on average 1.4052197802197801) internal successors, (1023), 731 states have internal predecessors, (1023), 141 states have call successors, (141), 47 states have call predecessors, (141), 44 states have return successors, (231), 137 states have call predecessors, (231), 132 states have call successors, (231) [2022-07-23 06:43:38,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1395 transitions. [2022-07-23 06:43:38,394 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1395 transitions. Word has length 24 [2022-07-23 06:43:38,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:38,394 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1395 transitions. [2022-07-23 06:43:38,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:38,394 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1395 transitions. [2022-07-23 06:43:38,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-23 06:43:38,398 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:38,398 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:38,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-23 06:43:38,398 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:38,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:38,399 INFO L85 PathProgramCache]: Analyzing trace with hash 9760830, now seen corresponding path program 1 times [2022-07-23 06:43:38,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:38,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241997755] [2022-07-23 06:43:38,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:38,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:38,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-23 06:43:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:38,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:38,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241997755] [2022-07-23 06:43:38,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241997755] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:38,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:38,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:43:38,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895622743] [2022-07-23 06:43:38,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:38,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:43:38,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:38,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:43:38,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:43:38,463 INFO L87 Difference]: Start difference. First operand 914 states and 1395 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:38,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:38,609 INFO L93 Difference]: Finished difference Result 974 states and 1486 transitions. [2022-07-23 06:43:38,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 06:43:38,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-07-23 06:43:38,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:38,614 INFO L225 Difference]: With dead ends: 974 [2022-07-23 06:43:38,614 INFO L226 Difference]: Without dead ends: 974 [2022-07-23 06:43:38,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:38,615 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 100 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:38,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 673 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:43:38,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-07-23 06:43:38,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 951. [2022-07-23 06:43:38,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 761 states have (on average 1.3955321944809462) internal successors, (1062), 768 states have internal predecessors, (1062), 141 states have call successors, (141), 47 states have call predecessors, (141), 48 states have return successors, (249), 137 states have call predecessors, (249), 132 states have call successors, (249) [2022-07-23 06:43:38,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1452 transitions. [2022-07-23 06:43:38,636 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1452 transitions. Word has length 27 [2022-07-23 06:43:38,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:38,637 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1452 transitions. [2022-07-23 06:43:38,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:38,637 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1452 transitions. [2022-07-23 06:43:38,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-23 06:43:38,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:38,640 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:38,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-23 06:43:38,642 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:38,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:38,643 INFO L85 PathProgramCache]: Analyzing trace with hash 755665447, now seen corresponding path program 1 times [2022-07-23 06:43:38,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:38,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508189462] [2022-07-23 06:43:38,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:38,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:38,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-23 06:43:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:38,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:38,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:38,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508189462] [2022-07-23 06:43:38,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508189462] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:38,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:38,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:43:38,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887290169] [2022-07-23 06:43:38,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:38,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:43:38,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:38,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:43:38,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:43:38,743 INFO L87 Difference]: Start difference. First operand 951 states and 1452 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:38,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:38,937 INFO L93 Difference]: Finished difference Result 974 states and 1484 transitions. [2022-07-23 06:43:38,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:43:38,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-07-23 06:43:38,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:38,941 INFO L225 Difference]: With dead ends: 974 [2022-07-23 06:43:38,941 INFO L226 Difference]: Without dead ends: 974 [2022-07-23 06:43:38,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:43:38,941 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 403 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:38,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 790 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:38,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-07-23 06:43:38,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 951. [2022-07-23 06:43:38,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 761 states have (on average 1.392904073587385) internal successors, (1060), 768 states have internal predecessors, (1060), 141 states have call successors, (141), 47 states have call predecessors, (141), 48 states have return successors, (249), 137 states have call predecessors, (249), 132 states have call successors, (249) [2022-07-23 06:43:38,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1450 transitions. [2022-07-23 06:43:38,963 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1450 transitions. Word has length 28 [2022-07-23 06:43:38,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:38,965 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1450 transitions. [2022-07-23 06:43:38,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:38,965 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1450 transitions. [2022-07-23 06:43:38,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-23 06:43:38,966 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:38,966 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:38,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-23 06:43:38,966 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:38,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:38,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1062018506, now seen corresponding path program 1 times [2022-07-23 06:43:38,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:38,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622622649] [2022-07-23 06:43:38,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:38,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:39,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-23 06:43:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:39,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:39,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:39,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622622649] [2022-07-23 06:43:39,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622622649] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:39,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:39,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:43:39,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145708096] [2022-07-23 06:43:39,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:39,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:43:39,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:39,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:43:39,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:43:39,037 INFO L87 Difference]: Start difference. First operand 951 states and 1450 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:39,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:39,251 INFO L93 Difference]: Finished difference Result 974 states and 1482 transitions. [2022-07-23 06:43:39,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:43:39,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-07-23 06:43:39,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:39,255 INFO L225 Difference]: With dead ends: 974 [2022-07-23 06:43:39,255 INFO L226 Difference]: Without dead ends: 974 [2022-07-23 06:43:39,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:43:39,256 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 401 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:39,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 791 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:39,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-07-23 06:43:39,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 951. [2022-07-23 06:43:39,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 761 states have (on average 1.390275952693824) internal successors, (1058), 768 states have internal predecessors, (1058), 141 states have call successors, (141), 47 states have call predecessors, (141), 48 states have return successors, (249), 137 states have call predecessors, (249), 132 states have call successors, (249) [2022-07-23 06:43:39,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1448 transitions. [2022-07-23 06:43:39,276 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1448 transitions. Word has length 29 [2022-07-23 06:43:39,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:39,276 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1448 transitions. [2022-07-23 06:43:39,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:39,277 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1448 transitions. [2022-07-23 06:43:39,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-23 06:43:39,279 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:39,279 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:39,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-23 06:43:39,279 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:39,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:39,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1381771216, now seen corresponding path program 1 times [2022-07-23 06:43:39,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:39,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631363010] [2022-07-23 06:43:39,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:39,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:39,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-23 06:43:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:39,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:39,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:39,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631363010] [2022-07-23 06:43:39,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631363010] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:39,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:39,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 06:43:39,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105699896] [2022-07-23 06:43:39,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:39,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:43:39,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:39,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:43:39,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:39,310 INFO L87 Difference]: Start difference. First operand 951 states and 1448 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:39,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:39,430 INFO L93 Difference]: Finished difference Result 984 states and 1493 transitions. [2022-07-23 06:43:39,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 06:43:39,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-07-23 06:43:39,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:39,434 INFO L225 Difference]: With dead ends: 984 [2022-07-23 06:43:39,434 INFO L226 Difference]: Without dead ends: 968 [2022-07-23 06:43:39,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:43:39,434 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 84 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:39,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 998 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:43:39,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-07-23 06:43:39,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 947. [2022-07-23 06:43:39,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 758 states have (on average 1.3905013192612137) internal successors, (1054), 765 states have internal predecessors, (1054), 140 states have call successors, (140), 47 states have call predecessors, (140), 48 states have return successors, (248), 136 states have call predecessors, (248), 131 states have call successors, (248) [2022-07-23 06:43:39,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1442 transitions. [2022-07-23 06:43:39,457 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1442 transitions. Word has length 30 [2022-07-23 06:43:39,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:39,457 INFO L495 AbstractCegarLoop]: Abstraction has 947 states and 1442 transitions. [2022-07-23 06:43:39,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:39,457 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1442 transitions. [2022-07-23 06:43:39,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-23 06:43:39,458 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:39,458 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:39,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-23 06:43:39,458 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:39,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:39,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1269800431, now seen corresponding path program 1 times [2022-07-23 06:43:39,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:39,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787505958] [2022-07-23 06:43:39,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:39,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:39,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:43:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:39,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:39,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:39,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787505958] [2022-07-23 06:43:39,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787505958] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:39,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:39,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:43:39,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916755215] [2022-07-23 06:43:39,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:39,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:43:39,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:39,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:43:39,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:43:39,502 INFO L87 Difference]: Start difference. First operand 947 states and 1442 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:39,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:39,683 INFO L93 Difference]: Finished difference Result 997 states and 1505 transitions. [2022-07-23 06:43:39,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:43:39,683 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-07-23 06:43:39,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:39,687 INFO L225 Difference]: With dead ends: 997 [2022-07-23 06:43:39,687 INFO L226 Difference]: Without dead ends: 966 [2022-07-23 06:43:39,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:43:39,688 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 113 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:39,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1228 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:39,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-07-23 06:43:39,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 945. [2022-07-23 06:43:39,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 757 states have (on average 1.3883751651254954) internal successors, (1051), 764 states have internal predecessors, (1051), 139 states have call successors, (139), 47 states have call predecessors, (139), 48 states have return successors, (247), 135 states have call predecessors, (247), 130 states have call successors, (247) [2022-07-23 06:43:39,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1437 transitions. [2022-07-23 06:43:39,710 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1437 transitions. Word has length 34 [2022-07-23 06:43:39,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:39,710 INFO L495 AbstractCegarLoop]: Abstraction has 945 states and 1437 transitions. [2022-07-23 06:43:39,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:39,710 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1437 transitions. [2022-07-23 06:43:39,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-23 06:43:39,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:39,711 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:39,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-23 06:43:39,711 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:39,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:39,712 INFO L85 PathProgramCache]: Analyzing trace with hash 282504272, now seen corresponding path program 1 times [2022-07-23 06:43:39,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:39,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851043510] [2022-07-23 06:43:39,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:39,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:39,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-23 06:43:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:39,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:39,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:39,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851043510] [2022-07-23 06:43:39,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851043510] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:39,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:39,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:43:39,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277247574] [2022-07-23 06:43:39,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:39,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:43:39,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:39,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:43:39,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:43:39,745 INFO L87 Difference]: Start difference. First operand 945 states and 1437 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:40,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:40,047 INFO L93 Difference]: Finished difference Result 1436 states and 2280 transitions. [2022-07-23 06:43:40,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 06:43:40,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-07-23 06:43:40,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:40,053 INFO L225 Difference]: With dead ends: 1436 [2022-07-23 06:43:40,053 INFO L226 Difference]: Without dead ends: 1436 [2022-07-23 06:43:40,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:40,054 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 276 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:40,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 736 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:40,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2022-07-23 06:43:40,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1012. [2022-07-23 06:43:40,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 811 states have (on average 1.3834771886559802) internal successors, (1122), 821 states have internal predecessors, (1122), 146 states have call successors, (146), 49 states have call predecessors, (146), 54 states have return successors, (276), 143 states have call predecessors, (276), 137 states have call successors, (276) [2022-07-23 06:43:40,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1544 transitions. [2022-07-23 06:43:40,078 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1544 transitions. Word has length 34 [2022-07-23 06:43:40,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:40,079 INFO L495 AbstractCegarLoop]: Abstraction has 1012 states and 1544 transitions. [2022-07-23 06:43:40,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:40,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1544 transitions. [2022-07-23 06:43:40,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-23 06:43:40,080 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:40,080 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:40,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-23 06:43:40,080 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:40,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:40,080 INFO L85 PathProgramCache]: Analyzing trace with hash 621054387, now seen corresponding path program 1 times [2022-07-23 06:43:40,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:40,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196999147] [2022-07-23 06:43:40,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:40,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:40,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-23 06:43:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:40,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:40,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:40,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196999147] [2022-07-23 06:43:40,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196999147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:40,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:40,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:43:40,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863538720] [2022-07-23 06:43:40,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:40,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:43:40,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:40,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:43:40,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:43:40,125 INFO L87 Difference]: Start difference. First operand 1012 states and 1544 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:40,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:40,439 INFO L93 Difference]: Finished difference Result 1074 states and 1632 transitions. [2022-07-23 06:43:40,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:43:40,440 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-07-23 06:43:40,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:40,443 INFO L225 Difference]: With dead ends: 1074 [2022-07-23 06:43:40,443 INFO L226 Difference]: Without dead ends: 1073 [2022-07-23 06:43:40,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:43:40,444 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 87 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:40,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1563 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:40,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-07-23 06:43:40,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1020. [2022-07-23 06:43:40,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 819 states have (on average 1.3821733821733821) internal successors, (1132), 829 states have internal predecessors, (1132), 146 states have call successors, (146), 49 states have call predecessors, (146), 54 states have return successors, (276), 143 states have call predecessors, (276), 137 states have call successors, (276) [2022-07-23 06:43:40,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1554 transitions. [2022-07-23 06:43:40,463 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1554 transitions. Word has length 35 [2022-07-23 06:43:40,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:40,463 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 1554 transitions. [2022-07-23 06:43:40,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:40,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1554 transitions. [2022-07-23 06:43:40,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-23 06:43:40,464 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:40,464 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:40,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-23 06:43:40,464 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:40,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:40,465 INFO L85 PathProgramCache]: Analyzing trace with hash 620777557, now seen corresponding path program 1 times [2022-07-23 06:43:40,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:40,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629413855] [2022-07-23 06:43:40,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:40,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:40,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-23 06:43:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:40,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:40,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:40,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629413855] [2022-07-23 06:43:40,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629413855] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:40,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:40,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:43:40,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974848745] [2022-07-23 06:43:40,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:40,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:43:40,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:40,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:43:40,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:43:40,517 INFO L87 Difference]: Start difference. First operand 1020 states and 1554 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:40,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:40,802 INFO L93 Difference]: Finished difference Result 1147 states and 1834 transitions. [2022-07-23 06:43:40,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:43:40,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-07-23 06:43:40,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:40,807 INFO L225 Difference]: With dead ends: 1147 [2022-07-23 06:43:40,807 INFO L226 Difference]: Without dead ends: 1134 [2022-07-23 06:43:40,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:43:40,808 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 96 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:40,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 1679 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:40,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2022-07-23 06:43:40,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1038. [2022-07-23 06:43:40,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 836 states have (on average 1.3863636363636365) internal successors, (1159), 847 states have internal predecessors, (1159), 146 states have call successors, (146), 49 states have call predecessors, (146), 55 states have return successors, (295), 143 states have call predecessors, (295), 137 states have call successors, (295) [2022-07-23 06:43:40,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1600 transitions. [2022-07-23 06:43:40,828 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1600 transitions. Word has length 35 [2022-07-23 06:43:40,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:40,829 INFO L495 AbstractCegarLoop]: Abstraction has 1038 states and 1600 transitions. [2022-07-23 06:43:40,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:40,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1600 transitions. [2022-07-23 06:43:40,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-23 06:43:40,830 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:40,830 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:40,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-23 06:43:40,830 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:40,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:40,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1299938929, now seen corresponding path program 1 times [2022-07-23 06:43:40,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:40,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033790464] [2022-07-23 06:43:40,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:40,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:40,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:40,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:40,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033790464] [2022-07-23 06:43:40,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033790464] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:40,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:40,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:43:40,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116284648] [2022-07-23 06:43:40,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:40,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:43:40,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:40,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:43:40,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:43:40,852 INFO L87 Difference]: Start difference. First operand 1038 states and 1600 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:40,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:40,958 INFO L93 Difference]: Finished difference Result 1047 states and 1605 transitions. [2022-07-23 06:43:40,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 06:43:40,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-07-23 06:43:40,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:40,963 INFO L225 Difference]: With dead ends: 1047 [2022-07-23 06:43:40,963 INFO L226 Difference]: Without dead ends: 1047 [2022-07-23 06:43:40,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:40,964 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 312 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:40,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 470 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:43:40,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2022-07-23 06:43:40,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1032. [2022-07-23 06:43:40,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 830 states have (on average 1.3855421686746987) internal successors, (1150), 842 states have internal predecessors, (1150), 146 states have call successors, (146), 49 states have call predecessors, (146), 55 states have return successors, (293), 142 states have call predecessors, (293), 137 states have call successors, (293) [2022-07-23 06:43:40,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1589 transitions. [2022-07-23 06:43:40,991 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1589 transitions. Word has length 34 [2022-07-23 06:43:40,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:40,991 INFO L495 AbstractCegarLoop]: Abstraction has 1032 states and 1589 transitions. [2022-07-23 06:43:40,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:40,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1589 transitions. [2022-07-23 06:43:40,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-23 06:43:40,992 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:40,992 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:40,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-23 06:43:40,992 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:40,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:40,993 INFO L85 PathProgramCache]: Analyzing trace with hash 2068890717, now seen corresponding path program 1 times [2022-07-23 06:43:40,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:40,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263941878] [2022-07-23 06:43:40,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:40,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:41,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-23 06:43:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:41,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:41,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:41,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263941878] [2022-07-23 06:43:41,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263941878] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:41,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:41,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:43:41,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699250054] [2022-07-23 06:43:41,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:41,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:43:41,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:41,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:43:41,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:43:41,038 INFO L87 Difference]: Start difference. First operand 1032 states and 1589 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:41,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:41,475 INFO L93 Difference]: Finished difference Result 1482 states and 2371 transitions. [2022-07-23 06:43:41,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:43:41,475 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-07-23 06:43:41,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:41,480 INFO L225 Difference]: With dead ends: 1482 [2022-07-23 06:43:41,480 INFO L226 Difference]: Without dead ends: 1469 [2022-07-23 06:43:41,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:43:41,481 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 758 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:41,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 841 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 06:43:41,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2022-07-23 06:43:41,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1019. [2022-07-23 06:43:41,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 819 states have (on average 1.387057387057387) internal successors, (1136), 830 states have internal predecessors, (1136), 145 states have call successors, (145), 49 states have call predecessors, (145), 54 states have return successors, (274), 141 states have call predecessors, (274), 136 states have call successors, (274) [2022-07-23 06:43:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1555 transitions. [2022-07-23 06:43:41,503 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1555 transitions. Word has length 36 [2022-07-23 06:43:41,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:41,503 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1555 transitions. [2022-07-23 06:43:41,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:41,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1555 transitions. [2022-07-23 06:43:41,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-23 06:43:41,504 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:41,504 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:41,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-23 06:43:41,504 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:41,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:41,504 INFO L85 PathProgramCache]: Analyzing trace with hash 661355935, now seen corresponding path program 1 times [2022-07-23 06:43:41,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:41,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730242478] [2022-07-23 06:43:41,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:41,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:41,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:43:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:41,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:41,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:41,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730242478] [2022-07-23 06:43:41,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730242478] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:41,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:41,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 06:43:41,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838349888] [2022-07-23 06:43:41,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:41,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:43:41,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:41,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:43:41,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:41,550 INFO L87 Difference]: Start difference. First operand 1019 states and 1555 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:41,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:41,773 INFO L93 Difference]: Finished difference Result 723 states and 1044 transitions. [2022-07-23 06:43:41,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 06:43:41,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-07-23 06:43:41,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:41,775 INFO L225 Difference]: With dead ends: 723 [2022-07-23 06:43:41,776 INFO L226 Difference]: Without dead ends: 723 [2022-07-23 06:43:41,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:41,776 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 378 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:41,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 714 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:41,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2022-07-23 06:43:41,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 650. [2022-07-23 06:43:41,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 527 states have (on average 1.3529411764705883) internal successors, (713), 537 states have internal predecessors, (713), 87 states have call successors, (87), 33 states have call predecessors, (87), 35 states have return successors, (143), 81 states have call predecessors, (143), 78 states have call successors, (143) [2022-07-23 06:43:41,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 943 transitions. [2022-07-23 06:43:41,787 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 943 transitions. Word has length 38 [2022-07-23 06:43:41,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:41,788 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 943 transitions. [2022-07-23 06:43:41,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:41,788 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 943 transitions. [2022-07-23 06:43:41,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-23 06:43:41,788 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:41,788 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:41,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-23 06:43:41,789 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:41,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:41,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1922765743, now seen corresponding path program 1 times [2022-07-23 06:43:41,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:41,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756305731] [2022-07-23 06:43:41,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:41,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:41,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:41,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:41,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756305731] [2022-07-23 06:43:41,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756305731] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:41,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:41,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:43:41,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925200577] [2022-07-23 06:43:41,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:41,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:43:41,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:41,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:43:41,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:41,807 INFO L87 Difference]: Start difference. First operand 650 states and 943 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:41,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:41,869 INFO L93 Difference]: Finished difference Result 916 states and 1387 transitions. [2022-07-23 06:43:41,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:43:41,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-23 06:43:41,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:41,873 INFO L225 Difference]: With dead ends: 916 [2022-07-23 06:43:41,873 INFO L226 Difference]: Without dead ends: 916 [2022-07-23 06:43:41,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:43:41,873 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 183 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:41,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 712 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:43:41,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2022-07-23 06:43:41,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 666. [2022-07-23 06:43:41,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 542 states have (on average 1.345018450184502) internal successors, (729), 552 states have internal predecessors, (729), 87 states have call successors, (87), 33 states have call predecessors, (87), 36 states have return successors, (144), 82 states have call predecessors, (144), 78 states have call successors, (144) [2022-07-23 06:43:41,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 960 transitions. [2022-07-23 06:43:41,886 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 960 transitions. Word has length 35 [2022-07-23 06:43:41,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:41,886 INFO L495 AbstractCegarLoop]: Abstraction has 666 states and 960 transitions. [2022-07-23 06:43:41,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:41,887 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 960 transitions. [2022-07-23 06:43:41,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-23 06:43:41,887 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:41,887 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:41,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-23 06:43:41,888 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:41,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:41,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1798212433, now seen corresponding path program 1 times [2022-07-23 06:43:41,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:41,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587945668] [2022-07-23 06:43:41,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:41,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:41,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:41,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:41,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587945668] [2022-07-23 06:43:41,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587945668] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:41,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:41,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:43:41,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962587822] [2022-07-23 06:43:41,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:41,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:43:41,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:41,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:43:41,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:43:41,917 INFO L87 Difference]: Start difference. First operand 666 states and 960 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:42,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:42,000 INFO L93 Difference]: Finished difference Result 644 states and 929 transitions. [2022-07-23 06:43:42,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 06:43:42,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-23 06:43:42,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:42,003 INFO L225 Difference]: With dead ends: 644 [2022-07-23 06:43:42,003 INFO L226 Difference]: Without dead ends: 644 [2022-07-23 06:43:42,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:42,003 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 291 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:42,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 463 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:43:42,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-07-23 06:43:42,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 642. [2022-07-23 06:43:42,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 520 states have (on average 1.3423076923076922) internal successors, (698), 529 states have internal predecessors, (698), 86 states have call successors, (86), 33 states have call predecessors, (86), 35 states have return successors, (143), 81 states have call predecessors, (143), 78 states have call successors, (143) [2022-07-23 06:43:42,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 927 transitions. [2022-07-23 06:43:42,017 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 927 transitions. Word has length 35 [2022-07-23 06:43:42,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:42,017 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 927 transitions. [2022-07-23 06:43:42,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:42,017 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 927 transitions. [2022-07-23 06:43:42,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-23 06:43:42,018 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:42,018 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:42,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-23 06:43:42,018 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:42,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:42,019 INFO L85 PathProgramCache]: Analyzing trace with hash 734679029, now seen corresponding path program 1 times [2022-07-23 06:43:42,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:42,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105557692] [2022-07-23 06:43:42,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:42,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:42,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:43:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:42,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:42,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:42,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105557692] [2022-07-23 06:43:42,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105557692] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:42,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:42,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:43:42,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29194054] [2022-07-23 06:43:42,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:42,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:43:42,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:42,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:43:42,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:43:42,071 INFO L87 Difference]: Start difference. First operand 642 states and 927 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:42,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:42,336 INFO L93 Difference]: Finished difference Result 698 states and 1010 transitions. [2022-07-23 06:43:42,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:43:42,336 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-07-23 06:43:42,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:42,339 INFO L225 Difference]: With dead ends: 698 [2022-07-23 06:43:42,339 INFO L226 Difference]: Without dead ends: 670 [2022-07-23 06:43:42,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:43:42,340 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 83 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:42,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1519 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:42,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-07-23 06:43:42,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 615. [2022-07-23 06:43:42,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 495 states have (on average 1.3494949494949495) internal successors, (668), 504 states have internal predecessors, (668), 85 states have call successors, (85), 32 states have call predecessors, (85), 34 states have return successors, (142), 80 states have call predecessors, (142), 77 states have call successors, (142) [2022-07-23 06:43:42,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 895 transitions. [2022-07-23 06:43:42,375 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 895 transitions. Word has length 37 [2022-07-23 06:43:42,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:42,375 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 895 transitions. [2022-07-23 06:43:42,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:42,376 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 895 transitions. [2022-07-23 06:43:42,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-23 06:43:42,376 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:42,377 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:42,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-23 06:43:42,377 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:42,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:42,378 INFO L85 PathProgramCache]: Analyzing trace with hash -70447564, now seen corresponding path program 1 times [2022-07-23 06:43:42,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:42,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534948350] [2022-07-23 06:43:42,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:42,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:42,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:42,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:42,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534948350] [2022-07-23 06:43:42,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534948350] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:42,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:42,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:43:42,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666390484] [2022-07-23 06:43:42,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:42,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:43:42,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:42,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:43:42,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:42,448 INFO L87 Difference]: Start difference. First operand 615 states and 895 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:42,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:42,513 INFO L93 Difference]: Finished difference Result 632 states and 912 transitions. [2022-07-23 06:43:42,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:43:42,513 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-07-23 06:43:42,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:42,516 INFO L225 Difference]: With dead ends: 632 [2022-07-23 06:43:42,516 INFO L226 Difference]: Without dead ends: 614 [2022-07-23 06:43:42,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:43:42,517 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 43 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:42,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 1597 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:43:42,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-07-23 06:43:42,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 614. [2022-07-23 06:43:42,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 494 states have (on average 1.3481781376518218) internal successors, (666), 503 states have internal predecessors, (666), 85 states have call successors, (85), 32 states have call predecessors, (85), 34 states have return successors, (142), 80 states have call predecessors, (142), 77 states have call successors, (142) [2022-07-23 06:43:42,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 893 transitions. [2022-07-23 06:43:42,532 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 893 transitions. Word has length 36 [2022-07-23 06:43:42,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:42,533 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 893 transitions. [2022-07-23 06:43:42,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:42,533 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 893 transitions. [2022-07-23 06:43:42,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-23 06:43:42,534 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:42,534 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:42,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-23 06:43:42,534 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:42,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:42,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1099539614, now seen corresponding path program 1 times [2022-07-23 06:43:42,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:42,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396054010] [2022-07-23 06:43:42,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:42,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:42,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 06:43:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:42,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:42,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:42,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396054010] [2022-07-23 06:43:42,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396054010] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:42,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:42,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:43:42,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925728948] [2022-07-23 06:43:42,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:42,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:43:42,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:42,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:43:42,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:43:42,569 INFO L87 Difference]: Start difference. First operand 614 states and 893 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:42,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:42,702 INFO L93 Difference]: Finished difference Result 653 states and 948 transitions. [2022-07-23 06:43:42,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 06:43:42,703 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-07-23 06:43:42,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:42,706 INFO L225 Difference]: With dead ends: 653 [2022-07-23 06:43:42,706 INFO L226 Difference]: Without dead ends: 626 [2022-07-23 06:43:42,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:43:42,719 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 98 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:42,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 1128 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:43:42,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-07-23 06:43:42,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 599. [2022-07-23 06:43:42,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 481 states have (on average 1.3534303534303533) internal successors, (651), 490 states have internal predecessors, (651), 84 states have call successors, (84), 31 states have call predecessors, (84), 33 states have return successors, (141), 79 states have call predecessors, (141), 76 states have call successors, (141) [2022-07-23 06:43:42,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 876 transitions. [2022-07-23 06:43:42,729 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 876 transitions. Word has length 38 [2022-07-23 06:43:42,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:42,729 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 876 transitions. [2022-07-23 06:43:42,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:42,729 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 876 transitions. [2022-07-23 06:43:42,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-23 06:43:42,730 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:42,730 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:42,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-23 06:43:42,730 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:42,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:42,731 INFO L85 PathProgramCache]: Analyzing trace with hash 233678839, now seen corresponding path program 1 times [2022-07-23 06:43:42,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:42,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471879489] [2022-07-23 06:43:42,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:42,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:42,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:42,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:42,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471879489] [2022-07-23 06:43:42,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471879489] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:42,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:42,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:43:42,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033652742] [2022-07-23 06:43:42,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:42,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:43:42,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:42,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:43:42,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:43:42,771 INFO L87 Difference]: Start difference. First operand 599 states and 876 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:42,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:42,832 INFO L93 Difference]: Finished difference Result 611 states and 889 transitions. [2022-07-23 06:43:42,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 06:43:42,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-07-23 06:43:42,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:42,834 INFO L225 Difference]: With dead ends: 611 [2022-07-23 06:43:42,834 INFO L226 Difference]: Without dead ends: 610 [2022-07-23 06:43:42,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:43:42,834 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 46 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:42,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 1234 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:43:42,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-07-23 06:43:42,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 606. [2022-07-23 06:43:42,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 488 states have (on average 1.3504098360655739) internal successors, (659), 497 states have internal predecessors, (659), 84 states have call successors, (84), 31 states have call predecessors, (84), 33 states have return successors, (141), 79 states have call predecessors, (141), 76 states have call successors, (141) [2022-07-23 06:43:42,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 884 transitions. [2022-07-23 06:43:42,844 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 884 transitions. Word has length 37 [2022-07-23 06:43:42,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:42,844 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 884 transitions. [2022-07-23 06:43:42,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:42,844 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 884 transitions. [2022-07-23 06:43:42,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-23 06:43:42,845 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:42,845 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:42,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-23 06:43:42,845 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:42,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:42,845 INFO L85 PathProgramCache]: Analyzing trace with hash 233402009, now seen corresponding path program 1 times [2022-07-23 06:43:42,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:42,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348131990] [2022-07-23 06:43:42,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:42,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:42,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:42,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:42,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348131990] [2022-07-23 06:43:42,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348131990] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:42,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:42,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:43:42,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019242016] [2022-07-23 06:43:42,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:42,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:43:42,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:42,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:43:42,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:43:42,873 INFO L87 Difference]: Start difference. First operand 606 states and 884 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:43,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:43,031 INFO L93 Difference]: Finished difference Result 852 states and 1305 transitions. [2022-07-23 06:43:43,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 06:43:43,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-07-23 06:43:43,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:43,035 INFO L225 Difference]: With dead ends: 852 [2022-07-23 06:43:43,035 INFO L226 Difference]: Without dead ends: 827 [2022-07-23 06:43:43,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:43,036 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 393 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:43,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 575 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:43:43,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2022-07-23 06:43:43,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 583. [2022-07-23 06:43:43,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 465 states have (on average 1.3591397849462366) internal successors, (632), 474 states have internal predecessors, (632), 84 states have call successors, (84), 31 states have call predecessors, (84), 33 states have return successors, (141), 79 states have call predecessors, (141), 76 states have call successors, (141) [2022-07-23 06:43:43,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 857 transitions. [2022-07-23 06:43:43,047 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 857 transitions. Word has length 37 [2022-07-23 06:43:43,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:43,047 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 857 transitions. [2022-07-23 06:43:43,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:43,048 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 857 transitions. [2022-07-23 06:43:43,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-23 06:43:43,048 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:43,048 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:43,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-23 06:43:43,049 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:43,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:43,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1478054632, now seen corresponding path program 1 times [2022-07-23 06:43:43,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:43,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243110898] [2022-07-23 06:43:43,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:43,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:43,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-23 06:43:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:43,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-23 06:43:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:43,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:43,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:43,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243110898] [2022-07-23 06:43:43,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243110898] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:43,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:43,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 06:43:43,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437011289] [2022-07-23 06:43:43,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:43,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:43:43,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:43,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:43:43,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:43,089 INFO L87 Difference]: Start difference. First operand 583 states and 857 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:43,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:43,269 INFO L93 Difference]: Finished difference Result 726 states and 1109 transitions. [2022-07-23 06:43:43,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:43:43,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-07-23 06:43:43,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:43,272 INFO L225 Difference]: With dead ends: 726 [2022-07-23 06:43:43,273 INFO L226 Difference]: Without dead ends: 726 [2022-07-23 06:43:43,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:43:43,273 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 173 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:43,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 739 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:43,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-07-23 06:43:43,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 645. [2022-07-23 06:43:43,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 523 states have (on average 1.3652007648183557) internal successors, (714), 533 states have internal predecessors, (714), 86 states have call successors, (86), 31 states have call predecessors, (86), 35 states have return successors, (159), 80 states have call predecessors, (159), 78 states have call successors, (159) [2022-07-23 06:43:43,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 959 transitions. [2022-07-23 06:43:43,284 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 959 transitions. Word has length 43 [2022-07-23 06:43:43,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:43,285 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 959 transitions. [2022-07-23 06:43:43,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:43,285 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 959 transitions. [2022-07-23 06:43:43,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-23 06:43:43,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:43,285 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:43,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-23 06:43:43,286 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:43,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:43,286 INFO L85 PathProgramCache]: Analyzing trace with hash -268012581, now seen corresponding path program 1 times [2022-07-23 06:43:43,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:43,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575916702] [2022-07-23 06:43:43,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:43,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:43,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 06:43:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:43,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:43,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:43,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575916702] [2022-07-23 06:43:43,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575916702] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:43,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:43,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 06:43:43,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939171182] [2022-07-23 06:43:43,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:43,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 06:43:43,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:43,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 06:43:43,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:43:43,380 INFO L87 Difference]: Start difference. First operand 645 states and 959 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:43,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:43,729 INFO L93 Difference]: Finished difference Result 749 states and 1158 transitions. [2022-07-23 06:43:43,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 06:43:43,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-07-23 06:43:43,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:43,732 INFO L225 Difference]: With dead ends: 749 [2022-07-23 06:43:43,732 INFO L226 Difference]: Without dead ends: 729 [2022-07-23 06:43:43,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:43:43,733 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 102 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:43,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1385 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:43,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2022-07-23 06:43:43,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 644. [2022-07-23 06:43:43,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 522 states have (on average 1.3639846743295019) internal successors, (712), 532 states have internal predecessors, (712), 86 states have call successors, (86), 31 states have call predecessors, (86), 35 states have return successors, (159), 80 states have call predecessors, (159), 78 states have call successors, (159) [2022-07-23 06:43:43,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 957 transitions. [2022-07-23 06:43:43,744 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 957 transitions. Word has length 43 [2022-07-23 06:43:43,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:43,744 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 957 transitions. [2022-07-23 06:43:43,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:43,744 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 957 transitions. [2022-07-23 06:43:43,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-23 06:43:43,745 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:43,745 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:43,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-23 06:43:43,745 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:43,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:43,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1845246895, now seen corresponding path program 1 times [2022-07-23 06:43:43,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:43,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657770291] [2022-07-23 06:43:43,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:43,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:43,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 06:43:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:43,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:43,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:43,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:43,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657770291] [2022-07-23 06:43:43,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657770291] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:43,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:43,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:43:43,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095955738] [2022-07-23 06:43:43,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:43,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:43:43,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:43,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:43:43,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:43:43,792 INFO L87 Difference]: Start difference. First operand 644 states and 957 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:44,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:44,114 INFO L93 Difference]: Finished difference Result 815 states and 1297 transitions. [2022-07-23 06:43:44,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 06:43:44,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-07-23 06:43:44,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:44,117 INFO L225 Difference]: With dead ends: 815 [2022-07-23 06:43:44,117 INFO L226 Difference]: Without dead ends: 815 [2022-07-23 06:43:44,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:43:44,118 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 129 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:44,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1309 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:44,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2022-07-23 06:43:44,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 668. [2022-07-23 06:43:44,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 542 states have (on average 1.3542435424354244) internal successors, (734), 552 states have internal predecessors, (734), 86 states have call successors, (86), 31 states have call predecessors, (86), 39 states have return successors, (211), 84 states have call predecessors, (211), 78 states have call successors, (211) [2022-07-23 06:43:44,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1031 transitions. [2022-07-23 06:43:44,143 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1031 transitions. Word has length 48 [2022-07-23 06:43:44,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:44,143 INFO L495 AbstractCegarLoop]: Abstraction has 668 states and 1031 transitions. [2022-07-23 06:43:44,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:44,143 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1031 transitions. [2022-07-23 06:43:44,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-23 06:43:44,144 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:44,144 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:44,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-23 06:43:44,144 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:44,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:44,145 INFO L85 PathProgramCache]: Analyzing trace with hash -615366385, now seen corresponding path program 1 times [2022-07-23 06:43:44,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:44,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287464584] [2022-07-23 06:43:44,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:44,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:44,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 06:43:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:44,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:44,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:44,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287464584] [2022-07-23 06:43:44,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287464584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:44,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:44,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 06:43:44,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837938835] [2022-07-23 06:43:44,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:44,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 06:43:44,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:44,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 06:43:44,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:43:44,214 INFO L87 Difference]: Start difference. First operand 668 states and 1031 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:44,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:44,554 INFO L93 Difference]: Finished difference Result 726 states and 1118 transitions. [2022-07-23 06:43:44,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:43:44,554 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-07-23 06:43:44,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:44,557 INFO L225 Difference]: With dead ends: 726 [2022-07-23 06:43:44,557 INFO L226 Difference]: Without dead ends: 696 [2022-07-23 06:43:44,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:43:44,557 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 91 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:44,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1364 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:44,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-07-23 06:43:44,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 637. [2022-07-23 06:43:44,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 514 states have (on average 1.367704280155642) internal successors, (703), 523 states have internal predecessors, (703), 84 states have call successors, (84), 30 states have call predecessors, (84), 38 states have return successors, (210), 83 states have call predecessors, (210), 77 states have call successors, (210) [2022-07-23 06:43:44,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 997 transitions. [2022-07-23 06:43:44,568 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 997 transitions. Word has length 44 [2022-07-23 06:43:44,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:44,568 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 997 transitions. [2022-07-23 06:43:44,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:43:44,568 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 997 transitions. [2022-07-23 06:43:44,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-23 06:43:44,569 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:44,569 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:44,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-23 06:43:44,569 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:44,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:44,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1448694147, now seen corresponding path program 1 times [2022-07-23 06:43:44,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:44,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751217081] [2022-07-23 06:43:44,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:44,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:44,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:43:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:44,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:44,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:44,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:44,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751217081] [2022-07-23 06:43:44,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751217081] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:44,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:44,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 06:43:44,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431954041] [2022-07-23 06:43:44,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:44,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:43:44,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:44,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:43:44,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:44,601 INFO L87 Difference]: Start difference. First operand 637 states and 997 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:44,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:44,816 INFO L93 Difference]: Finished difference Result 1213 states and 2011 transitions. [2022-07-23 06:43:44,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:43:44,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-07-23 06:43:44,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:44,821 INFO L225 Difference]: With dead ends: 1213 [2022-07-23 06:43:44,821 INFO L226 Difference]: Without dead ends: 1213 [2022-07-23 06:43:44,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:44,821 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 296 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:44,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 803 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:44,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2022-07-23 06:43:44,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 645. [2022-07-23 06:43:44,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 522 states have (on average 1.3697318007662835) internal successors, (715), 531 states have internal predecessors, (715), 84 states have call successors, (84), 30 states have call predecessors, (84), 38 states have return successors, (210), 83 states have call predecessors, (210), 77 states have call successors, (210) [2022-07-23 06:43:44,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 1009 transitions. [2022-07-23 06:43:44,838 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 1009 transitions. Word has length 48 [2022-07-23 06:43:44,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:44,838 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 1009 transitions. [2022-07-23 06:43:44,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:44,838 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 1009 transitions. [2022-07-23 06:43:44,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-23 06:43:44,839 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:44,839 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:44,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-23 06:43:44,839 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:44,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:44,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1116153965, now seen corresponding path program 1 times [2022-07-23 06:43:44,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:44,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134312576] [2022-07-23 06:43:44,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:44,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:44,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:44,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 06:43:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:44,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:44,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:44,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:44,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134312576] [2022-07-23 06:43:44,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134312576] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:44,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:44,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 06:43:44,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013428874] [2022-07-23 06:43:44,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:44,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:43:44,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:44,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:43:44,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:43:44,886 INFO L87 Difference]: Start difference. First operand 645 states and 1009 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:45,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:45,172 INFO L93 Difference]: Finished difference Result 1361 states and 2165 transitions. [2022-07-23 06:43:45,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:43:45,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2022-07-23 06:43:45,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:45,176 INFO L225 Difference]: With dead ends: 1361 [2022-07-23 06:43:45,176 INFO L226 Difference]: Without dead ends: 1361 [2022-07-23 06:43:45,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:45,177 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 306 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:45,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 745 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:45,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2022-07-23 06:43:45,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1197. [2022-07-23 06:43:45,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 973 states have (on average 1.381294964028777) internal successors, (1344), 993 states have internal predecessors, (1344), 148 states have call successors, (148), 56 states have call predecessors, (148), 75 states have return successors, (416), 147 states have call predecessors, (416), 141 states have call successors, (416) [2022-07-23 06:43:45,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1908 transitions. [2022-07-23 06:43:45,197 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1908 transitions. Word has length 50 [2022-07-23 06:43:45,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:45,197 INFO L495 AbstractCegarLoop]: Abstraction has 1197 states and 1908 transitions. [2022-07-23 06:43:45,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:43:45,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1908 transitions. [2022-07-23 06:43:45,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-23 06:43:45,198 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:45,198 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:45,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-23 06:43:45,198 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:45,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:45,199 INFO L85 PathProgramCache]: Analyzing trace with hash 33672435, now seen corresponding path program 1 times [2022-07-23 06:43:45,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:45,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282898121] [2022-07-23 06:43:45,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:45,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:45,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:45,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282898121] [2022-07-23 06:43:45,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282898121] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:45,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:45,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 06:43:45,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129009075] [2022-07-23 06:43:45,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:45,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 06:43:45,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:45,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 06:43:45,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:43:45,295 INFO L87 Difference]: Start difference. First operand 1197 states and 1908 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 06:43:45,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:45,623 INFO L93 Difference]: Finished difference Result 1236 states and 1967 transitions. [2022-07-23 06:43:45,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:43:45,623 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2022-07-23 06:43:45,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:45,627 INFO L225 Difference]: With dead ends: 1236 [2022-07-23 06:43:45,627 INFO L226 Difference]: Without dead ends: 1236 [2022-07-23 06:43:45,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:43:45,628 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 188 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:45,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 1119 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:45,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2022-07-23 06:43:45,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1145. [2022-07-23 06:43:45,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1145 states, 921 states have (on average 1.3659066232356134) internal successors, (1258), 941 states have internal predecessors, (1258), 148 states have call successors, (148), 56 states have call predecessors, (148), 75 states have return successors, (416), 147 states have call predecessors, (416), 141 states have call successors, (416) [2022-07-23 06:43:45,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 1822 transitions. [2022-07-23 06:43:45,662 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 1822 transitions. Word has length 50 [2022-07-23 06:43:45,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:45,663 INFO L495 AbstractCegarLoop]: Abstraction has 1145 states and 1822 transitions. [2022-07-23 06:43:45,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 06:43:45,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 1822 transitions. [2022-07-23 06:43:45,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-23 06:43:45,663 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:45,664 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:45,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-23 06:43:45,664 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:45,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:45,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1244659166, now seen corresponding path program 1 times [2022-07-23 06:43:45,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:45,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786045055] [2022-07-23 06:43:45,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:45,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:43:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:45,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:45,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786045055] [2022-07-23 06:43:45,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786045055] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:45,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:45,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:43:45,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612751176] [2022-07-23 06:43:45,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:45,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:43:45,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:45,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:43:45,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:43:45,744 INFO L87 Difference]: Start difference. First operand 1145 states and 1822 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:45,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:45,869 INFO L93 Difference]: Finished difference Result 332 states and 475 transitions. [2022-07-23 06:43:45,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 06:43:45,869 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2022-07-23 06:43:45,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:45,870 INFO L225 Difference]: With dead ends: 332 [2022-07-23 06:43:45,870 INFO L226 Difference]: Without dead ends: 332 [2022-07-23 06:43:45,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:43:45,871 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 246 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:45,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 405 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:43:45,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-07-23 06:43:45,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2022-07-23 06:43:45,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 260 states have (on average 1.273076923076923) internal successors, (331), 264 states have internal predecessors, (331), 50 states have call successors, (50), 17 states have call predecessors, (50), 21 states have return successors, (94), 50 states have call predecessors, (94), 47 states have call successors, (94) [2022-07-23 06:43:45,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 475 transitions. [2022-07-23 06:43:45,877 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 475 transitions. Word has length 49 [2022-07-23 06:43:45,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:45,877 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 475 transitions. [2022-07-23 06:43:45,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:43:45,877 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 475 transitions. [2022-07-23 06:43:45,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-23 06:43:45,877 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:45,878 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:45,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-23 06:43:45,878 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:45,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:45,878 INFO L85 PathProgramCache]: Analyzing trace with hash 929022604, now seen corresponding path program 1 times [2022-07-23 06:43:45,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:45,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439172163] [2022-07-23 06:43:45,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:45,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:45,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:45,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:45,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439172163] [2022-07-23 06:43:45,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439172163] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:45,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:45,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 06:43:45,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993035563] [2022-07-23 06:43:45,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:45,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 06:43:45,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:45,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 06:43:45,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:43:45,999 INFO L87 Difference]: Start difference. First operand 332 states and 475 transitions. Second operand has 10 states, 10 states have (on average 4.4) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 06:43:46,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:46,223 INFO L93 Difference]: Finished difference Result 327 states and 462 transitions. [2022-07-23 06:43:46,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 06:43:46,223 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2022-07-23 06:43:46,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:46,225 INFO L225 Difference]: With dead ends: 327 [2022-07-23 06:43:46,225 INFO L226 Difference]: Without dead ends: 327 [2022-07-23 06:43:46,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2022-07-23 06:43:46,225 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 233 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:46,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 624 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:46,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-07-23 06:43:46,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2022-07-23 06:43:46,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 256 states have (on average 1.26171875) internal successors, (323), 260 states have internal predecessors, (323), 50 states have call successors, (50), 17 states have call predecessors, (50), 20 states have return successors, (89), 49 states have call predecessors, (89), 47 states have call successors, (89) [2022-07-23 06:43:46,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 462 transitions. [2022-07-23 06:43:46,232 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 462 transitions. Word has length 54 [2022-07-23 06:43:46,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:46,232 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 462 transitions. [2022-07-23 06:43:46,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 06:43:46,232 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 462 transitions. [2022-07-23 06:43:46,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-23 06:43:46,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:46,233 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:46,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-23 06:43:46,234 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:46,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:46,234 INFO L85 PathProgramCache]: Analyzing trace with hash 677437189, now seen corresponding path program 1 times [2022-07-23 06:43:46,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:46,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911123866] [2022-07-23 06:43:46,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:46,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:46,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:46,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911123866] [2022-07-23 06:43:46,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911123866] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:46,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:46,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:43:46,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211464323] [2022-07-23 06:43:46,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:46,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:43:46,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:46,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:43:46,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:46,310 INFO L87 Difference]: Start difference. First operand 327 states and 462 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-23 06:43:46,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:46,458 INFO L93 Difference]: Finished difference Result 339 states and 485 transitions. [2022-07-23 06:43:46,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:43:46,458 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 57 [2022-07-23 06:43:46,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:46,461 INFO L225 Difference]: With dead ends: 339 [2022-07-23 06:43:46,461 INFO L226 Difference]: Without dead ends: 339 [2022-07-23 06:43:46,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:43:46,462 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 64 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:46,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 700 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:43:46,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-07-23 06:43:46,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 330. [2022-07-23 06:43:46,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 259 states have (on average 1.2586872586872586) internal successors, (326), 263 states have internal predecessors, (326), 50 states have call successors, (50), 17 states have call predecessors, (50), 20 states have return successors, (89), 49 states have call predecessors, (89), 47 states have call successors, (89) [2022-07-23 06:43:46,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 465 transitions. [2022-07-23 06:43:46,470 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 465 transitions. Word has length 57 [2022-07-23 06:43:46,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:46,470 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 465 transitions. [2022-07-23 06:43:46,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-23 06:43:46,470 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 465 transitions. [2022-07-23 06:43:46,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-23 06:43:46,471 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:46,471 INFO L195 NwaCegarLoop]: 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] [2022-07-23 06:43:46,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-23 06:43:46,471 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:46,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:46,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1289316037, now seen corresponding path program 1 times [2022-07-23 06:43:46,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:46,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079099835] [2022-07-23 06:43:46,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:46,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:46,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:46,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079099835] [2022-07-23 06:43:46,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079099835] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:46,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:46,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 06:43:46,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035139313] [2022-07-23 06:43:46,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:46,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 06:43:46,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:46,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 06:43:46,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:43:46,597 INFO L87 Difference]: Start difference. First operand 330 states and 465 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-23 06:43:46,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:46,802 INFO L93 Difference]: Finished difference Result 333 states and 466 transitions. [2022-07-23 06:43:46,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 06:43:46,803 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 57 [2022-07-23 06:43:46,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:46,803 INFO L225 Difference]: With dead ends: 333 [2022-07-23 06:43:46,804 INFO L226 Difference]: Without dead ends: 333 [2022-07-23 06:43:46,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:43:46,804 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 66 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:46,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1190 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:46,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-07-23 06:43:46,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 330. [2022-07-23 06:43:46,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 259 states have (on average 1.247104247104247) internal successors, (323), 263 states have internal predecessors, (323), 50 states have call successors, (50), 17 states have call predecessors, (50), 20 states have return successors, (89), 49 states have call predecessors, (89), 47 states have call successors, (89) [2022-07-23 06:43:46,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 462 transitions. [2022-07-23 06:43:46,811 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 462 transitions. Word has length 57 [2022-07-23 06:43:46,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:46,811 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 462 transitions. [2022-07-23 06:43:46,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-23 06:43:46,812 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 462 transitions. [2022-07-23 06:43:46,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-23 06:43:46,812 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:46,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:46,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-23 06:43:46,813 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:46,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:46,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1579853377, now seen corresponding path program 1 times [2022-07-23 06:43:46,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:46,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145896604] [2022-07-23 06:43:46,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:46,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 06:43:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:46,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:46,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:46,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145896604] [2022-07-23 06:43:46,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145896604] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:46,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:46,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 06:43:46,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148754297] [2022-07-23 06:43:46,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:46,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 06:43:46,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:46,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 06:43:46,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:43:46,911 INFO L87 Difference]: Start difference. First operand 330 states and 462 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-23 06:43:47,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:47,180 INFO L93 Difference]: Finished difference Result 308 states and 421 transitions. [2022-07-23 06:43:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 06:43:47,180 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2022-07-23 06:43:47,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:47,181 INFO L225 Difference]: With dead ends: 308 [2022-07-23 06:43:47,181 INFO L226 Difference]: Without dead ends: 308 [2022-07-23 06:43:47,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-07-23 06:43:47,183 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 197 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:47,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 925 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:47,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-07-23 06:43:47,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 300. [2022-07-23 06:43:47,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 235 states have (on average 1.251063829787234) internal successors, (294), 241 states have internal predecessors, (294), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (68), 41 states have call predecessors, (68), 44 states have call successors, (68) [2022-07-23 06:43:47,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 409 transitions. [2022-07-23 06:43:47,188 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 409 transitions. Word has length 68 [2022-07-23 06:43:47,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:47,188 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 409 transitions. [2022-07-23 06:43:47,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-23 06:43:47,188 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 409 transitions. [2022-07-23 06:43:47,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-23 06:43:47,189 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:47,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:47,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-23 06:43:47,189 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:47,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:47,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2132296105, now seen corresponding path program 1 times [2022-07-23 06:43:47,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:47,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475949971] [2022-07-23 06:43:47,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:47,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 06:43:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:47,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:47,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475949971] [2022-07-23 06:43:47,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475949971] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:47,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:47,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-23 06:43:47,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415797347] [2022-07-23 06:43:47,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:47,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-23 06:43:47,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:47,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-23 06:43:47,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2022-07-23 06:43:47,363 INFO L87 Difference]: Start difference. First operand 300 states and 409 transitions. Second operand has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-23 06:43:47,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:47,786 INFO L93 Difference]: Finished difference Result 333 states and 455 transitions. [2022-07-23 06:43:47,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-23 06:43:47,787 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 73 [2022-07-23 06:43:47,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:47,788 INFO L225 Difference]: With dead ends: 333 [2022-07-23 06:43:47,788 INFO L226 Difference]: Without dead ends: 315 [2022-07-23 06:43:47,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2022-07-23 06:43:47,789 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 125 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:47,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 2203 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 06:43:47,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-07-23 06:43:47,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 303. [2022-07-23 06:43:47,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 237 states have (on average 1.248945147679325) internal successors, (296), 244 states have internal predecessors, (296), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (69), 41 states have call predecessors, (69), 44 states have call successors, (69) [2022-07-23 06:43:47,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 412 transitions. [2022-07-23 06:43:47,794 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 412 transitions. Word has length 73 [2022-07-23 06:43:47,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:47,794 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 412 transitions. [2022-07-23 06:43:47,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-23 06:43:47,794 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 412 transitions. [2022-07-23 06:43:47,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-23 06:43:47,795 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:47,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:47,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-23 06:43:47,796 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:47,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:47,796 INFO L85 PathProgramCache]: Analyzing trace with hash -2002463371, now seen corresponding path program 1 times [2022-07-23 06:43:47,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:47,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123201520] [2022-07-23 06:43:47,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:47,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-23 06:43:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:47,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:47,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:47,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123201520] [2022-07-23 06:43:47,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123201520] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:47,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:47,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-23 06:43:47,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110460237] [2022-07-23 06:43:47,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:47,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-23 06:43:47,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:47,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-23 06:43:47,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2022-07-23 06:43:47,953 INFO L87 Difference]: Start difference. First operand 303 states and 412 transitions. Second operand has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-23 06:43:48,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:48,362 INFO L93 Difference]: Finished difference Result 337 states and 459 transitions. [2022-07-23 06:43:48,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-23 06:43:48,362 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 74 [2022-07-23 06:43:48,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:48,363 INFO L225 Difference]: With dead ends: 337 [2022-07-23 06:43:48,363 INFO L226 Difference]: Without dead ends: 319 [2022-07-23 06:43:48,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2022-07-23 06:43:48,364 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 126 mSDsluCounter, 2170 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2379 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:48,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 2379 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:48,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-07-23 06:43:48,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 303. [2022-07-23 06:43:48,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 237 states have (on average 1.248945147679325) internal successors, (296), 244 states have internal predecessors, (296), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (69), 41 states have call predecessors, (69), 44 states have call successors, (69) [2022-07-23 06:43:48,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 412 transitions. [2022-07-23 06:43:48,368 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 412 transitions. Word has length 74 [2022-07-23 06:43:48,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:48,368 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 412 transitions. [2022-07-23 06:43:48,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-23 06:43:48,369 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 412 transitions. [2022-07-23 06:43:48,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-23 06:43:48,371 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:48,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:48,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-23 06:43:48,371 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:48,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:48,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1293155315, now seen corresponding path program 1 times [2022-07-23 06:43:48,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:48,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033487249] [2022-07-23 06:43:48,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:48,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:48,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:43:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:48,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:48,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:48,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:48,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 06:43:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:48,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-23 06:43:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:48,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:48,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:48,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033487249] [2022-07-23 06:43:48,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033487249] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:48,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:48,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-23 06:43:48,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17384728] [2022-07-23 06:43:48,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:48,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-23 06:43:48,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:48,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-23 06:43:48,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-07-23 06:43:48,569 INFO L87 Difference]: Start difference. First operand 303 states and 412 transitions. Second operand has 18 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 11 states have internal predecessors, (69), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-23 06:43:49,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:49,265 INFO L93 Difference]: Finished difference Result 443 states and 663 transitions. [2022-07-23 06:43:49,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-23 06:43:49,266 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 11 states have internal predecessors, (69), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 82 [2022-07-23 06:43:49,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:49,267 INFO L225 Difference]: With dead ends: 443 [2022-07-23 06:43:49,267 INFO L226 Difference]: Without dead ends: 415 [2022-07-23 06:43:49,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-07-23 06:43:49,268 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 194 mSDsluCounter, 2411 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2652 SdHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:49,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2652 Invalid, 1573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 06:43:49,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-07-23 06:43:49,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 399. [2022-07-23 06:43:49,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 305 states have (on average 1.259016393442623) internal successors, (384), 316 states have internal predecessors, (384), 74 states have call successors, (74), 17 states have call predecessors, (74), 19 states have return successors, (108), 65 states have call predecessors, (108), 70 states have call successors, (108) [2022-07-23 06:43:49,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 566 transitions. [2022-07-23 06:43:49,291 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 566 transitions. Word has length 82 [2022-07-23 06:43:49,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:49,291 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 566 transitions. [2022-07-23 06:43:49,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 11 states have internal predecessors, (69), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-23 06:43:49,291 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 566 transitions. [2022-07-23 06:43:49,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-23 06:43:49,292 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:49,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:49,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-23 06:43:49,293 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:49,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:49,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1315841768, now seen corresponding path program 1 times [2022-07-23 06:43:49,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:49,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75442976] [2022-07-23 06:43:49,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:49,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 06:43:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 06:43:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:49,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:49,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75442976] [2022-07-23 06:43:49,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75442976] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:49,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:49,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 06:43:49,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373802423] [2022-07-23 06:43:49,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:49,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 06:43:49,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:49,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 06:43:49,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:43:49,414 INFO L87 Difference]: Start difference. First operand 399 states and 566 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-23 06:43:49,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:49,785 INFO L93 Difference]: Finished difference Result 520 states and 710 transitions. [2022-07-23 06:43:49,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-23 06:43:49,786 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 84 [2022-07-23 06:43:49,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:49,787 INFO L225 Difference]: With dead ends: 520 [2022-07-23 06:43:49,787 INFO L226 Difference]: Without dead ends: 520 [2022-07-23 06:43:49,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2022-07-23 06:43:49,787 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 311 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:49,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1279 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:49,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-07-23 06:43:49,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 478. [2022-07-23 06:43:49,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 373 states have (on average 1.2520107238605898) internal successors, (467), 383 states have internal predecessors, (467), 77 states have call successors, (77), 23 states have call predecessors, (77), 27 states have return successors, (112), 71 states have call predecessors, (112), 73 states have call successors, (112) [2022-07-23 06:43:49,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 656 transitions. [2022-07-23 06:43:49,795 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 656 transitions. Word has length 84 [2022-07-23 06:43:49,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:49,795 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 656 transitions. [2022-07-23 06:43:49,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-23 06:43:49,795 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 656 transitions. [2022-07-23 06:43:49,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-23 06:43:49,796 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:49,796 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:49,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-23 06:43:49,796 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:49,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:49,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1543379991, now seen corresponding path program 1 times [2022-07-23 06:43:49,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:49,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639121186] [2022-07-23 06:43:49,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:49,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 06:43:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 06:43:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:49,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:49,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:49,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639121186] [2022-07-23 06:43:49,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639121186] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:49,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:49,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 06:43:49,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084916880] [2022-07-23 06:43:49,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:49,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 06:43:49,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:49,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 06:43:49,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:43:49,889 INFO L87 Difference]: Start difference. First operand 478 states and 656 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-23 06:43:50,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:50,296 INFO L93 Difference]: Finished difference Result 478 states and 646 transitions. [2022-07-23 06:43:50,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-23 06:43:50,297 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 84 [2022-07-23 06:43:50,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:50,298 INFO L225 Difference]: With dead ends: 478 [2022-07-23 06:43:50,298 INFO L226 Difference]: Without dead ends: 478 [2022-07-23 06:43:50,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2022-07-23 06:43:50,298 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 453 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:50,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 812 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:50,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-07-23 06:43:50,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2022-07-23 06:43:50,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 373 states have (on average 1.2466487935656836) internal successors, (465), 383 states have internal predecessors, (465), 77 states have call successors, (77), 23 states have call predecessors, (77), 27 states have return successors, (104), 71 states have call predecessors, (104), 73 states have call successors, (104) [2022-07-23 06:43:50,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 646 transitions. [2022-07-23 06:43:50,304 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 646 transitions. Word has length 84 [2022-07-23 06:43:50,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:50,304 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 646 transitions. [2022-07-23 06:43:50,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-23 06:43:50,304 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 646 transitions. [2022-07-23 06:43:50,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-23 06:43:50,305 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:50,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:50,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-23 06:43:50,305 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:50,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:50,305 INFO L85 PathProgramCache]: Analyzing trace with hash -654013751, now seen corresponding path program 1 times [2022-07-23 06:43:50,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:50,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181916220] [2022-07-23 06:43:50,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:50,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:50,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:43:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:50,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:50,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:50,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:50,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-23 06:43:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:50,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-23 06:43:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:50,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:50,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:50,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181916220] [2022-07-23 06:43:50,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181916220] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:50,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:50,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-23 06:43:50,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599093408] [2022-07-23 06:43:50,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:50,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-23 06:43:50,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:50,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-23 06:43:50,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-07-23 06:43:50,492 INFO L87 Difference]: Start difference. First operand 478 states and 646 transitions. Second operand has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 11 states have internal predecessors, (70), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-23 06:43:51,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:51,197 INFO L93 Difference]: Finished difference Result 628 states and 917 transitions. [2022-07-23 06:43:51,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-23 06:43:51,198 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 11 states have internal predecessors, (70), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 83 [2022-07-23 06:43:51,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:51,199 INFO L225 Difference]: With dead ends: 628 [2022-07-23 06:43:51,199 INFO L226 Difference]: Without dead ends: 592 [2022-07-23 06:43:51,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-07-23 06:43:51,200 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 222 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:51,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 2187 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1580 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 06:43:51,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-07-23 06:43:51,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 475. [2022-07-23 06:43:51,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 371 states have (on average 1.247978436657682) internal successors, (463), 380 states have internal predecessors, (463), 77 states have call successors, (77), 23 states have call predecessors, (77), 26 states have return successors, (103), 71 states have call predecessors, (103), 73 states have call successors, (103) [2022-07-23 06:43:51,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 643 transitions. [2022-07-23 06:43:51,209 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 643 transitions. Word has length 83 [2022-07-23 06:43:51,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:51,209 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 643 transitions. [2022-07-23 06:43:51,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 11 states have internal predecessors, (70), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-23 06:43:51,210 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 643 transitions. [2022-07-23 06:43:51,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-23 06:43:51,210 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:51,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:51,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-23 06:43:51,211 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:51,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:51,211 INFO L85 PathProgramCache]: Analyzing trace with hash -177974759, now seen corresponding path program 1 times [2022-07-23 06:43:51,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:51,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268423740] [2022-07-23 06:43:51,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:51,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:51,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:51,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:51,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:51,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:51,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 06:43:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:51,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 06:43:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:51,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:51,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:51,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268423740] [2022-07-23 06:43:51,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268423740] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:51,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:51,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-23 06:43:51,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183219129] [2022-07-23 06:43:51,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:51,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-23 06:43:51,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:51,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-23 06:43:51,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-07-23 06:43:51,356 INFO L87 Difference]: Start difference. First operand 475 states and 643 transitions. Second operand has 16 states, 16 states have (on average 4.4375) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 06:43:51,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:51,963 INFO L93 Difference]: Finished difference Result 927 states and 1259 transitions. [2022-07-23 06:43:51,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-23 06:43:51,964 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.4375) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 84 [2022-07-23 06:43:51,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:51,965 INFO L225 Difference]: With dead ends: 927 [2022-07-23 06:43:51,966 INFO L226 Difference]: Without dead ends: 906 [2022-07-23 06:43:51,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=739, Unknown=0, NotChecked=0, Total=870 [2022-07-23 06:43:51,967 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 348 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:51,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 2135 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 06:43:51,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2022-07-23 06:43:51,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 567. [2022-07-23 06:43:51,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 447 states have (on average 1.2170022371364653) internal successors, (544), 459 states have internal predecessors, (544), 83 states have call successors, (83), 29 states have call predecessors, (83), 36 states have return successors, (113), 78 states have call predecessors, (113), 79 states have call successors, (113) [2022-07-23 06:43:51,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 740 transitions. [2022-07-23 06:43:51,978 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 740 transitions. Word has length 84 [2022-07-23 06:43:51,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:51,979 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 740 transitions. [2022-07-23 06:43:51,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.4375) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 06:43:51,979 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 740 transitions. [2022-07-23 06:43:51,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-23 06:43:51,980 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:51,980 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:51,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-23 06:43:51,980 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:51,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:51,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1320477225, now seen corresponding path program 1 times [2022-07-23 06:43:51,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:51,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685916285] [2022-07-23 06:43:51,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:51,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-23 06:43:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 06:43:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 06:43:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:52,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:52,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685916285] [2022-07-23 06:43:52,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685916285] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:52,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:52,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-23 06:43:52,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035010185] [2022-07-23 06:43:52,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:52,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-23 06:43:52,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:52,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-23 06:43:52,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-07-23 06:43:52,115 INFO L87 Difference]: Start difference. First operand 567 states and 740 transitions. Second operand has 16 states, 16 states have (on average 4.4375) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 06:43:52,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:52,719 INFO L93 Difference]: Finished difference Result 924 states and 1251 transitions. [2022-07-23 06:43:52,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-23 06:43:52,719 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.4375) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 84 [2022-07-23 06:43:52,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:52,721 INFO L225 Difference]: With dead ends: 924 [2022-07-23 06:43:52,721 INFO L226 Difference]: Without dead ends: 899 [2022-07-23 06:43:52,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=787, Unknown=0, NotChecked=0, Total=930 [2022-07-23 06:43:52,722 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 320 mSDsluCounter, 2676 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 3023 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:52,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 3023 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 06:43:52,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2022-07-23 06:43:52,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 468. [2022-07-23 06:43:52,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 366 states have (on average 1.2486338797814207) internal successors, (457), 375 states have internal predecessors, (457), 75 states have call successors, (75), 23 states have call predecessors, (75), 26 states have return successors, (100), 69 states have call predecessors, (100), 71 states have call successors, (100) [2022-07-23 06:43:52,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 632 transitions. [2022-07-23 06:43:52,730 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 632 transitions. Word has length 84 [2022-07-23 06:43:52,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:52,730 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 632 transitions. [2022-07-23 06:43:52,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.4375) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 06:43:52,730 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 632 transitions. [2022-07-23 06:43:52,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-23 06:43:52,731 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:52,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:52,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-23 06:43:52,731 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:52,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:52,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1169943443, now seen corresponding path program 1 times [2022-07-23 06:43:52,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:52,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324864589] [2022-07-23 06:43:52,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:52,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:43:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 06:43:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 06:43:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-23 06:43:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:52,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:52,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:52,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324864589] [2022-07-23 06:43:52,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324864589] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:52,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:52,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-23 06:43:52,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785981914] [2022-07-23 06:43:52,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:52,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-23 06:43:52,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:52,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-23 06:43:52,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-23 06:43:52,882 INFO L87 Difference]: Start difference. First operand 468 states and 632 transitions. Second operand has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 10 states have internal predecessors, (78), 4 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-23 06:43:53,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:53,748 INFO L93 Difference]: Finished difference Result 929 states and 1255 transitions. [2022-07-23 06:43:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-23 06:43:53,749 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 10 states have internal predecessors, (78), 4 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 93 [2022-07-23 06:43:53,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:53,751 INFO L225 Difference]: With dead ends: 929 [2022-07-23 06:43:53,751 INFO L226 Difference]: Without dead ends: 885 [2022-07-23 06:43:53,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=198, Invalid=1134, Unknown=0, NotChecked=0, Total=1332 [2022-07-23 06:43:53,752 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 439 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 2251 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:53,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 2251 Invalid, 1729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-23 06:43:53,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2022-07-23 06:43:53,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 858. [2022-07-23 06:43:53,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 666 states have (on average 1.2147147147147148) internal successors, (809), 684 states have internal predecessors, (809), 142 states have call successors, (142), 43 states have call predecessors, (142), 49 states have return successors, (185), 130 states have call predecessors, (185), 137 states have call successors, (185) [2022-07-23 06:43:53,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1136 transitions. [2022-07-23 06:43:53,762 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1136 transitions. Word has length 93 [2022-07-23 06:43:53,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:53,762 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1136 transitions. [2022-07-23 06:43:53,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 10 states have internal predecessors, (78), 4 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-23 06:43:53,762 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1136 transitions. [2022-07-23 06:43:53,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-23 06:43:53,763 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:53,764 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:53,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-23 06:43:53,764 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:53,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:53,764 INFO L85 PathProgramCache]: Analyzing trace with hash -274894159, now seen corresponding path program 1 times [2022-07-23 06:43:53,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:53,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003324103] [2022-07-23 06:43:53,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:53,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:53,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:43:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:53,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:53,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:53,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:53,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 06:43:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:53,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-23 06:43:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:53,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:53,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:53,852 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-23 06:43:53,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:53,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003324103] [2022-07-23 06:43:53,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003324103] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:53,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:53,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 06:43:53,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481962545] [2022-07-23 06:43:53,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:53,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 06:43:53,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:53,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 06:43:53,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:43:53,854 INFO L87 Difference]: Start difference. First operand 858 states and 1136 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-23 06:43:54,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:54,209 INFO L93 Difference]: Finished difference Result 1142 states and 1584 transitions. [2022-07-23 06:43:54,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 06:43:54,210 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 95 [2022-07-23 06:43:54,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:54,212 INFO L225 Difference]: With dead ends: 1142 [2022-07-23 06:43:54,212 INFO L226 Difference]: Without dead ends: 1142 [2022-07-23 06:43:54,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-23 06:43:54,213 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 158 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:54,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1346 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:54,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-07-23 06:43:54,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 834. [2022-07-23 06:43:54,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 650 states have (on average 1.1953846153846155) internal successors, (777), 664 states have internal predecessors, (777), 134 states have call successors, (134), 43 states have call predecessors, (134), 49 states have return successors, (173), 126 states have call predecessors, (173), 129 states have call successors, (173) [2022-07-23 06:43:54,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1084 transitions. [2022-07-23 06:43:54,225 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1084 transitions. Word has length 95 [2022-07-23 06:43:54,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:54,225 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1084 transitions. [2022-07-23 06:43:54,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-23 06:43:54,226 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1084 transitions. [2022-07-23 06:43:54,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-23 06:43:54,226 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:54,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:54,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-23 06:43:54,227 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:54,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:54,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1940677009, now seen corresponding path program 1 times [2022-07-23 06:43:54,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:54,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746941522] [2022-07-23 06:43:54,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:54,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:43:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 06:43:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 06:43:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-23 06:43:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:54,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 06:43:54,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:54,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746941522] [2022-07-23 06:43:54,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746941522] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:54,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:54,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-23 06:43:54,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424349883] [2022-07-23 06:43:54,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:54,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-23 06:43:54,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:54,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-23 06:43:54,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-23 06:43:54,370 INFO L87 Difference]: Start difference. First operand 834 states and 1084 transitions. Second operand has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 10 states have internal predecessors, (78), 4 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-23 06:43:55,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:55,290 INFO L93 Difference]: Finished difference Result 855 states and 1113 transitions. [2022-07-23 06:43:55,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-23 06:43:55,290 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 10 states have internal predecessors, (78), 4 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 93 [2022-07-23 06:43:55,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:55,292 INFO L225 Difference]: With dead ends: 855 [2022-07-23 06:43:55,292 INFO L226 Difference]: Without dead ends: 809 [2022-07-23 06:43:55,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=1134, Unknown=0, NotChecked=0, Total=1332 [2022-07-23 06:43:55,293 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 342 mSDsluCounter, 2838 mSDsCounter, 0 mSdLazyCounter, 2220 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 3194 SdHoareTripleChecker+Invalid, 2313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:55,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 3194 Invalid, 2313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2220 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-23 06:43:55,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2022-07-23 06:43:55,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 306. [2022-07-23 06:43:55,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 242 states have (on average 1.1363636363636365) internal successors, (275), 247 states have internal predecessors, (275), 41 states have call successors, (41), 21 states have call predecessors, (41), 22 states have return successors, (48), 37 states have call predecessors, (48), 38 states have call successors, (48) [2022-07-23 06:43:55,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 364 transitions. [2022-07-23 06:43:55,300 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 364 transitions. Word has length 93 [2022-07-23 06:43:55,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:55,300 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 364 transitions. [2022-07-23 06:43:55,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 10 states have internal predecessors, (78), 4 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-23 06:43:55,300 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 364 transitions. [2022-07-23 06:43:55,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-23 06:43:55,301 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:55,301 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:55,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-23 06:43:55,302 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:55,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:55,302 INFO L85 PathProgramCache]: Analyzing trace with hash -369931013, now seen corresponding path program 1 times [2022-07-23 06:43:55,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:55,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299983251] [2022-07-23 06:43:55,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:55,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:43:55,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:55,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 06:43:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-23 06:43:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-23 06:43:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 06:43:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,393 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-23 06:43:55,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:55,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299983251] [2022-07-23 06:43:55,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299983251] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 06:43:55,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384117514] [2022-07-23 06:43:55,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:55,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 06:43:55,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 06:43:55,401 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 06:43:55,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 06:43:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:55,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 06:43:55,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 06:43:55,703 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-23 06:43:55,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 06:43:55,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384117514] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:55,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 06:43:55,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-07-23 06:43:55,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444725158] [2022-07-23 06:43:55,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:55,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:43:55,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:55,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:43:55,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-07-23 06:43:55,707 INFO L87 Difference]: Start difference. First operand 306 states and 364 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-23 06:43:55,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:55,778 INFO L93 Difference]: Finished difference Result 328 states and 392 transitions. [2022-07-23 06:43:55,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 06:43:55,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 133 [2022-07-23 06:43:55,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:55,780 INFO L225 Difference]: With dead ends: 328 [2022-07-23 06:43:55,780 INFO L226 Difference]: Without dead ends: 327 [2022-07-23 06:43:55,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-07-23 06:43:55,780 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 12 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:55,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 715 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:43:55,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-07-23 06:43:55,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 322. [2022-07-23 06:43:55,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 256 states have (on average 1.12890625) internal successors, (289), 262 states have internal predecessors, (289), 41 states have call successors, (41), 21 states have call predecessors, (41), 24 states have return successors, (55), 38 states have call predecessors, (55), 38 states have call successors, (55) [2022-07-23 06:43:55,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 385 transitions. [2022-07-23 06:43:55,784 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 385 transitions. Word has length 133 [2022-07-23 06:43:55,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:55,785 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 385 transitions. [2022-07-23 06:43:55,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-23 06:43:55,785 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 385 transitions. [2022-07-23 06:43:55,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-23 06:43:55,786 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:55,786 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:55,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 06:43:56,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-07-23 06:43:56,007 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:56,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:56,007 INFO L85 PathProgramCache]: Analyzing trace with hash -2141054115, now seen corresponding path program 1 times [2022-07-23 06:43:56,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:56,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030540084] [2022-07-23 06:43:56,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:56,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:43:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 06:43:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-23 06:43:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-23 06:43:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-23 06:43:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,114 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-23 06:43:56,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:56,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030540084] [2022-07-23 06:43:56,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030540084] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:56,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:56,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 06:43:56,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705087940] [2022-07-23 06:43:56,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:56,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 06:43:56,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:56,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 06:43:56,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:43:56,116 INFO L87 Difference]: Start difference. First operand 322 states and 385 transitions. Second operand has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-23 06:43:56,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:56,413 INFO L93 Difference]: Finished difference Result 362 states and 442 transitions. [2022-07-23 06:43:56,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 06:43:56,413 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 134 [2022-07-23 06:43:56,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:56,414 INFO L225 Difference]: With dead ends: 362 [2022-07-23 06:43:56,415 INFO L226 Difference]: Without dead ends: 362 [2022-07-23 06:43:56,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-23 06:43:56,415 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 138 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:56,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 968 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:43:56,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-07-23 06:43:56,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 315. [2022-07-23 06:43:56,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 251 states have (on average 1.1155378486055776) internal successors, (280), 256 states have internal predecessors, (280), 39 states have call successors, (39), 21 states have call predecessors, (39), 24 states have return successors, (51), 37 states have call predecessors, (51), 36 states have call successors, (51) [2022-07-23 06:43:56,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 370 transitions. [2022-07-23 06:43:56,424 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 370 transitions. Word has length 134 [2022-07-23 06:43:56,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:56,425 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 370 transitions. [2022-07-23 06:43:56,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-23 06:43:56,425 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 370 transitions. [2022-07-23 06:43:56,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-07-23 06:43:56,427 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:56,427 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:56,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-23 06:43:56,427 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:56,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:56,427 INFO L85 PathProgramCache]: Analyzing trace with hash 437867423, now seen corresponding path program 1 times [2022-07-23 06:43:56,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:56,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384847433] [2022-07-23 06:43:56,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:56,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:43:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 06:43:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-23 06:43:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-23 06:43:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-23 06:43:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-23 06:43:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-23 06:43:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-07-23 06:43:56,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:56,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384847433] [2022-07-23 06:43:56,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384847433] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:56,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:56,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 06:43:56,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46108164] [2022-07-23 06:43:56,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:56,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 06:43:56,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:56,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 06:43:56,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:43:56,546 INFO L87 Difference]: Start difference. First operand 315 states and 370 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-23 06:43:56,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:56,817 INFO L93 Difference]: Finished difference Result 317 states and 376 transitions. [2022-07-23 06:43:56,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 06:43:56,817 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 170 [2022-07-23 06:43:56,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:56,819 INFO L225 Difference]: With dead ends: 317 [2022-07-23 06:43:56,820 INFO L226 Difference]: Without dead ends: 317 [2022-07-23 06:43:56,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-23 06:43:56,820 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 123 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:56,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 913 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:56,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-07-23 06:43:56,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 217. [2022-07-23 06:43:56,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 176 states have (on average 1.1136363636363635) internal successors, (196), 178 states have internal predecessors, (196), 24 states have call successors, (24), 14 states have call predecessors, (24), 16 states have return successors, (30), 24 states have call predecessors, (30), 22 states have call successors, (30) [2022-07-23 06:43:56,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 250 transitions. [2022-07-23 06:43:56,824 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 250 transitions. Word has length 170 [2022-07-23 06:43:56,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:56,824 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 250 transitions. [2022-07-23 06:43:56,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-23 06:43:56,825 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 250 transitions. [2022-07-23 06:43:56,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-23 06:43:56,826 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:43:56,826 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:43:56,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-23 06:43:56,826 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:43:56,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:43:56,826 INFO L85 PathProgramCache]: Analyzing trace with hash 507971218, now seen corresponding path program 1 times [2022-07-23 06:43:56,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:43:56,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914144754] [2022-07-23 06:43:56,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:43:56,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:43:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:43:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 06:43:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 06:43:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-23 06:43:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-23 06:43:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-23 06:43:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:56,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-23 06:43:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-23 06:43:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 06:43:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 06:43:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:43:56,964 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-07-23 06:43:56,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:43:56,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914144754] [2022-07-23 06:43:56,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914144754] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:43:56,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:43:56,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 06:43:56,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345821494] [2022-07-23 06:43:56,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:43:56,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 06:43:56,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:43:56,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 06:43:56,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:43:56,966 INFO L87 Difference]: Start difference. First operand 217 states and 250 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-23 06:43:57,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:43:57,234 INFO L93 Difference]: Finished difference Result 209 states and 241 transitions. [2022-07-23 06:43:57,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 06:43:57,234 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 173 [2022-07-23 06:43:57,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:43:57,235 INFO L225 Difference]: With dead ends: 209 [2022-07-23 06:43:57,235 INFO L226 Difference]: Without dead ends: 0 [2022-07-23 06:43:57,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-23 06:43:57,235 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 98 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:43:57,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 667 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:43:57,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-23 06:43:57,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-23 06:43:57,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:43:57,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-23 06:43:57,236 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 173 [2022-07-23 06:43:57,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:43:57,236 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 06:43:57,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-23 06:43:57,237 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-23 06:43:57,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-23 06:43:57,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-07-23 06:43:57,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-07-23 06:43:57,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-23 06:43:57,241 INFO L356 BasicCegarLoop]: Path program 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] [2022-07-23 06:43:57,242 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-23 06:43:57,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 06:43:57 BoogieIcfgContainer [2022-07-23 06:43:57,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-23 06:43:57,244 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 06:43:57,244 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 06:43:57,245 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 06:43:57,245 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:43:37" (3/4) ... [2022-07-23 06:43:57,247 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-23 06:43:57,251 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IoBuildDeviceIoControlRequest [2022-07-23 06:43:57,251 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KeWaitForSingleObject [2022-07-23 06:43:57,251 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure DiskPerfForwardIrpSynchronous [2022-07-23 06:43:57,251 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCompleteRequest [2022-07-23 06:43:57,251 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure errorFn [2022-07-23 06:43:57,252 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCallDriver [2022-07-23 06:43:57,252 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure DiskPerfIrpCompletion [2022-07-23 06:43:57,252 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stubMoreProcessingRequired [2022-07-23 06:43:57,252 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure DiskPerfIoCompletion [2022-07-23 06:43:57,262 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2022-07-23 06:43:57,263 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-07-23 06:43:57,264 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-23 06:43:57,265 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-23 06:43:57,327 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 06:43:57,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 06:43:57,328 INFO L158 Benchmark]: Toolchain (without parser) took 21255.24ms. Allocated memory was 113.2MB in the beginning and 327.2MB in the end (delta: 213.9MB). Free memory was 73.6MB in the beginning and 133.1MB in the end (delta: -59.5MB). Peak memory consumption was 154.9MB. Max. memory is 16.1GB. [2022-07-23 06:43:57,328 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 06:43:57,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.90ms. Allocated memory is still 113.2MB. Free memory was 73.4MB in the beginning and 78.5MB in the end (delta: -5.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-23 06:43:57,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.81ms. Allocated memory is still 113.2MB. Free memory was 78.5MB in the beginning and 74.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-23 06:43:57,329 INFO L158 Benchmark]: Boogie Preprocessor took 30.51ms. Allocated memory is still 113.2MB. Free memory was 74.3MB in the beginning and 71.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 06:43:57,329 INFO L158 Benchmark]: RCFGBuilder took 633.34ms. Allocated memory was 113.2MB in the beginning and 157.3MB in the end (delta: 44.0MB). Free memory was 71.1MB in the beginning and 116.4MB in the end (delta: -45.2MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. [2022-07-23 06:43:57,329 INFO L158 Benchmark]: TraceAbstraction took 20012.88ms. Allocated memory was 157.3MB in the beginning and 327.2MB in the end (delta: 169.9MB). Free memory was 116.4MB in the beginning and 146.7MB in the end (delta: -30.3MB). Peak memory consumption was 139.3MB. Max. memory is 16.1GB. [2022-07-23 06:43:57,329 INFO L158 Benchmark]: Witness Printer took 83.39ms. Allocated memory is still 327.2MB. Free memory was 146.7MB in the beginning and 133.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-23 06:43:57,330 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 113.2MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 431.90ms. Allocated memory is still 113.2MB. Free memory was 73.4MB in the beginning and 78.5MB in the end (delta: -5.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.81ms. Allocated memory is still 113.2MB. Free memory was 78.5MB in the beginning and 74.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.51ms. Allocated memory is still 113.2MB. Free memory was 74.3MB in the beginning and 71.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 633.34ms. Allocated memory was 113.2MB in the beginning and 157.3MB in the end (delta: 44.0MB). Free memory was 71.1MB in the beginning and 116.4MB in the end (delta: -45.2MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. * TraceAbstraction took 20012.88ms. Allocated memory was 157.3MB in the beginning and 327.2MB in the end (delta: 169.9MB). Free memory was 116.4MB in the beginning and 146.7MB in the end (delta: -30.3MB). Peak memory consumption was 139.3MB. Max. memory is 16.1GB. * Witness Printer took 83.39ms. Allocated memory is still 327.2MB. Free memory was 146.7MB in the beginning and 133.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 647]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 244 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 20.0s, OverallIterations: 51, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10921 SdHoareTripleChecker+Valid, 11.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10672 mSDsluCounter, 59253 SdHoareTripleChecker+Invalid, 9.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45102 mSDsCounter, 2996 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23911 IncrementalHoareTripleChecker+Invalid, 26907 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2996 mSolverCounterUnsat, 14151 mSDtfsCounter, 23911 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1045 GetRequests, 495 SyntacticMatches, 3 SemanticMatches, 547 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1197occurred in iteration=30, InterpolantAutomatonStates: 500, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 51 MinimizatonAttempts, 5084 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 2987 NumberOfCodeBlocks, 2987 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 2935 ConstructedInterpolants, 0 QuantifiedInterpolants, 7423 SizeOfPredicates, 1 NumberOfNonLiveVariables, 868 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 52 InterpolantComputations, 51 PerfectInterpolantSequences, 552/558 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-23 06:43:57,359 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE