./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-2.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/floppy_simpl4.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b15a3429ae983cb571408e453cffd56861eca4f5fc7e760aad97ad24a44474ad --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 06:44:12,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 06:44:12,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 06:44:12,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 06:44:12,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 06:44:12,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 06:44:12,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 06:44:12,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 06:44:12,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 06:44:12,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 06:44:12,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 06:44:12,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 06:44:12,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 06:44:12,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 06:44:12,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 06:44:12,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 06:44:12,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 06:44:12,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 06:44:12,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 06:44:12,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 06:44:12,121 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 06:44:12,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 06:44:12,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 06:44:12,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 06:44:12,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 06:44:12,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 06:44:12,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 06:44:12,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 06:44:12,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 06:44:12,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 06:44:12,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 06:44:12,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 06:44:12,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 06:44:12,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 06:44:12,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 06:44:12,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 06:44:12,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 06:44:12,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 06:44:12,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 06:44:12,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 06:44:12,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 06:44:12,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 06:44:12,140 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-23 06:44:12,154 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 06:44:12,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 06:44:12,155 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 06:44:12,155 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 06:44:12,155 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 06:44:12,156 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 06:44:12,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 06:44:12,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 06:44:12,156 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 06:44:12,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 06:44:12,156 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 06:44:12,157 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 06:44:12,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 06:44:12,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 06:44:12,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 06:44:12,157 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-23 06:44:12,157 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-23 06:44:12,157 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-23 06:44:12,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 06:44:12,158 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 06:44:12,158 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 06:44:12,158 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 06:44:12,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 06:44:12,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 06:44:12,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 06:44:12,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 06:44:12,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 06:44:12,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 06:44:12,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 06:44:12,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 06:44:12,159 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b15a3429ae983cb571408e453cffd56861eca4f5fc7e760aad97ad24a44474ad [2022-07-23 06:44:12,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 06:44:12,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 06:44:12,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 06:44:12,368 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 06:44:12,368 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 06:44:12,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-2.c [2022-07-23 06:44:12,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5e07a411/5e09afe9bf5a425b93782c4f44b5545e/FLAGec99e40e1 [2022-07-23 06:44:12,822 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 06:44:12,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-2.c [2022-07-23 06:44:12,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5e07a411/5e09afe9bf5a425b93782c4f44b5545e/FLAGec99e40e1 [2022-07-23 06:44:12,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5e07a411/5e09afe9bf5a425b93782c4f44b5545e [2022-07-23 06:44:12,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 06:44:12,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 06:44:12,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 06:44:12,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 06:44:12,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 06:44:12,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 06:44:12" (1/1) ... [2022-07-23 06:44:12,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5094b56f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:44:12, skipping insertion in model container [2022-07-23 06:44:12,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 06:44:12" (1/1) ... [2022-07-23 06:44:12,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 06:44:12,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 06:44:13,099 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/floppy_simpl4.cil-2.c[48585,48598] [2022-07-23 06:44:13,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 06:44:13,107 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 06:44:13,168 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/floppy_simpl4.cil-2.c[48585,48598] [2022-07-23 06:44:13,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 06:44:13,182 INFO L208 MainTranslator]: Completed translation [2022-07-23 06:44:13,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:44:13 WrapperNode [2022-07-23 06:44:13,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 06:44:13,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 06:44:13,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 06:44:13,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 06:44:13,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:44:13" (1/1) ... [2022-07-23 06:44:13,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:44:13" (1/1) ... [2022-07-23 06:44:13,259 INFO L137 Inliner]: procedures = 41, calls = 76, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 1331 [2022-07-23 06:44:13,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 06:44:13,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 06:44:13,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 06:44:13,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 06:44:13,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:44:13" (1/1) ... [2022-07-23 06:44:13,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:44:13" (1/1) ... [2022-07-23 06:44:13,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:44:13" (1/1) ... [2022-07-23 06:44:13,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:44:13" (1/1) ... [2022-07-23 06:44:13,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:44:13" (1/1) ... [2022-07-23 06:44:13,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:44:13" (1/1) ... [2022-07-23 06:44:13,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:44:13" (1/1) ... [2022-07-23 06:44:13,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 06:44:13,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 06:44:13,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 06:44:13,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 06:44:13,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:44:13" (1/1) ... [2022-07-23 06:44:13,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 06:44:13,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 06:44:13,361 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 06:44:13,377 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 06:44:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 06:44:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2022-07-23 06:44:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2022-07-23 06:44:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2022-07-23 06:44:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2022-07-23 06:44:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-07-23 06:44:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-07-23 06:44:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-07-23 06:44:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-07-23 06:44:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-07-23 06:44:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-07-23 06:44:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 06:44:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-07-23 06:44:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-07-23 06:44:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2022-07-23 06:44:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2022-07-23 06:44:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 06:44:13,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 06:44:13,599 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 06:44:13,600 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 06:44:13,604 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:44:13,687 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-07-23 06:44:13,687 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-07-23 06:44:13,688 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:44:13,699 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-07-23 06:44:13,700 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-07-23 06:44:13,712 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:44:13,717 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:44:13,723 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:44:13,726 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:44:13,729 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:44:13,731 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:44:13,733 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:44:14,160 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##170: assume !false; [2022-07-23 06:44:14,160 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume false; [2022-07-23 06:44:14,160 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##181: assume !false; [2022-07-23 06:44:14,161 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##67: assume !false; [2022-07-23 06:44:14,161 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume false; [2022-07-23 06:44:14,161 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##127: assume !false; [2022-07-23 06:44:14,161 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##139: assume false; [2022-07-23 06:44:14,161 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume !false; [2022-07-23 06:44:14,161 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2022-07-23 06:44:14,161 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2022-07-23 06:44:14,161 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##169: assume false; [2022-07-23 06:44:14,162 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##236: assume !false; [2022-07-23 06:44:14,162 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##235: assume false; [2022-07-23 06:44:14,162 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume false; [2022-07-23 06:44:14,163 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:44:14,180 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-07-23 06:44:14,180 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-07-23 06:44:14,181 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:44:14,181 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:44:14,181 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 06:44:14,201 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2022-07-23 06:44:14,202 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2022-07-23 06:44:14,202 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2022-07-23 06:44:14,202 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2022-07-23 06:44:14,202 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2022-07-23 06:44:14,202 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2022-07-23 06:44:14,207 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 06:44:14,234 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 06:44:14,234 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 06:44:14,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:44:14 BoogieIcfgContainer [2022-07-23 06:44:14,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 06:44:14,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 06:44:14,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 06:44:14,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 06:44:14,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 06:44:12" (1/3) ... [2022-07-23 06:44:14,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b92c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 06:44:14, skipping insertion in model container [2022-07-23 06:44:14,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:44:13" (2/3) ... [2022-07-23 06:44:14,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b92c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 06:44:14, skipping insertion in model container [2022-07-23 06:44:14,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:44:14" (3/3) ... [2022-07-23 06:44:14,242 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-2.c [2022-07-23 06:44:14,252 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 06:44:14,253 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-23 06:44:14,339 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 06:44:14,343 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@1eb5fe90, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@43a9ba83 [2022-07-23 06:44:14,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-23 06:44:14,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 319 states, 259 states have (on average 1.5250965250965252) internal successors, (395), 285 states have internal predecessors, (395), 50 states have call successors, (50), 7 states have call predecessors, (50), 7 states have return successors, (50), 45 states have call predecessors, (50), 50 states have call successors, (50) [2022-07-23 06:44:14,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-23 06:44:14,352 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:14,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:14,353 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:14,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:14,357 INFO L85 PathProgramCache]: Analyzing trace with hash -207662691, now seen corresponding path program 1 times [2022-07-23 06:44:14,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:14,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766594205] [2022-07-23 06:44:14,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:14,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:14,524 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 06:44:14,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:14,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766594205] [2022-07-23 06:44:14,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766594205] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:14,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:14,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:44:14,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082295388] [2022-07-23 06:44:14,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:14,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:44:14,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:14,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:44:14,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:44:14,561 INFO L87 Difference]: Start difference. First operand has 319 states, 259 states have (on average 1.5250965250965252) internal successors, (395), 285 states have internal predecessors, (395), 50 states have call successors, (50), 7 states have call predecessors, (50), 7 states have return successors, (50), 45 states have call predecessors, (50), 50 states have call successors, (50) 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 06:44:14,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:14,645 INFO L93 Difference]: Finished difference Result 318 states and 469 transitions. [2022-07-23 06:44:14,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:44:14,648 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 06:44:14,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:14,662 INFO L225 Difference]: With dead ends: 318 [2022-07-23 06:44:14,663 INFO L226 Difference]: Without dead ends: 316 [2022-07-23 06:44:14,665 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 06:44:14,668 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 262 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:14,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 630 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:44:14,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-07-23 06:44:14,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 315. [2022-07-23 06:44:14,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 257 states have (on average 1.5058365758754864) internal successors, (387), 281 states have internal predecessors, (387), 50 states have call successors, (50), 7 states have call predecessors, (50), 6 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2022-07-23 06:44:14,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 466 transitions. [2022-07-23 06:44:14,735 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 466 transitions. Word has length 8 [2022-07-23 06:44:14,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:14,737 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 466 transitions. [2022-07-23 06:44:14,738 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 06:44:14,738 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 466 transitions. [2022-07-23 06:44:14,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-23 06:44:14,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:14,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:14,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 06:44:14,740 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:14,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:14,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1841054047, now seen corresponding path program 1 times [2022-07-23 06:44:14,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:14,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690114728] [2022-07-23 06:44:14,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:14,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:14,833 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 06:44:14,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:14,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690114728] [2022-07-23 06:44:14,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690114728] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:14,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:14,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:44:14,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377545617] [2022-07-23 06:44:14,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:14,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:44:14,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:14,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:44:14,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:44:14,843 INFO L87 Difference]: Start difference. First operand 315 states and 466 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, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:44:14,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:14,971 INFO L93 Difference]: Finished difference Result 438 states and 641 transitions. [2022-07-23 06:44:14,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:44:14,971 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, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-07-23 06:44:14,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:14,973 INFO L225 Difference]: With dead ends: 438 [2022-07-23 06:44:14,973 INFO L226 Difference]: Without dead ends: 438 [2022-07-23 06:44:14,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 06:44:14,975 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 370 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:14,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 779 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:14,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2022-07-23 06:44:14,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 417. [2022-07-23 06:44:14,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 358 states have (on average 1.4245810055865922) internal successors, (510), 362 states have internal predecessors, (510), 48 states have call successors, (48), 11 states have call predecessors, (48), 9 states have return successors, (52), 44 states have call predecessors, (52), 37 states have call successors, (52) [2022-07-23 06:44:14,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 610 transitions. [2022-07-23 06:44:14,991 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 610 transitions. Word has length 16 [2022-07-23 06:44:14,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:14,991 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 610 transitions. [2022-07-23 06:44:14,992 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, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 06:44:14,992 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 610 transitions. [2022-07-23 06:44:14,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-23 06:44:14,992 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:14,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:14,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 06:44:14,993 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:14,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:14,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1499851735, now seen corresponding path program 1 times [2022-07-23 06:44:14,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:14,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548536402] [2022-07-23 06:44:14,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:14,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:15,049 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 06:44:15,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:15,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548536402] [2022-07-23 06:44:15,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548536402] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:15,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:15,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 06:44:15,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74562400] [2022-07-23 06:44:15,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:15,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:44:15,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:15,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:44:15,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:44:15,052 INFO L87 Difference]: Start difference. First operand 417 states and 610 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 06:44:15,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:15,112 INFO L93 Difference]: Finished difference Result 416 states and 609 transitions. [2022-07-23 06:44:15,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:44:15,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2022-07-23 06:44:15,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:15,114 INFO L225 Difference]: With dead ends: 416 [2022-07-23 06:44:15,115 INFO L226 Difference]: Without dead ends: 411 [2022-07-23 06:44:15,115 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 06:44:15,116 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 272 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:15,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 543 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:44:15,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-07-23 06:44:15,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2022-07-23 06:44:15,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 353 states have (on average 1.4022662889518414) internal successors, (495), 356 states have internal predecessors, (495), 48 states have call successors, (48), 11 states have call predecessors, (48), 9 states have return successors, (52), 44 states have call predecessors, (52), 37 states have call successors, (52) [2022-07-23 06:44:15,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 595 transitions. [2022-07-23 06:44:15,133 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 595 transitions. Word has length 14 [2022-07-23 06:44:15,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:15,134 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 595 transitions. [2022-07-23 06:44:15,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 06:44:15,134 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 595 transitions. [2022-07-23 06:44:15,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-23 06:44:15,135 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:15,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:15,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 06:44:15,135 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:15,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:15,136 INFO L85 PathProgramCache]: Analyzing trace with hash -866854956, now seen corresponding path program 1 times [2022-07-23 06:44:15,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:15,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491374388] [2022-07-23 06:44:15,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:15,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:15,173 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 06:44:15,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:15,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491374388] [2022-07-23 06:44:15,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491374388] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:15,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:15,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:44:15,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117482384] [2022-07-23 06:44:15,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:15,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:44:15,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:15,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:44:15,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:44:15,175 INFO L87 Difference]: Start difference. First operand 411 states and 595 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 06:44:15,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:15,201 INFO L93 Difference]: Finished difference Result 497 states and 703 transitions. [2022-07-23 06:44:15,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:44:15,201 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), 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 19 [2022-07-23 06:44:15,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:15,205 INFO L225 Difference]: With dead ends: 497 [2022-07-23 06:44:15,205 INFO L226 Difference]: Without dead ends: 497 [2022-07-23 06:44:15,205 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 06:44:15,212 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 407 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 540 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 06:44:15,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 540 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:44:15,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2022-07-23 06:44:15,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 459. [2022-07-23 06:44:15,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 394 states have (on average 1.3959390862944163) internal successors, (550), 404 states have internal predecessors, (550), 50 states have call successors, (50), 14 states have call predecessors, (50), 14 states have return successors, (59), 43 states have call predecessors, (59), 41 states have call successors, (59) [2022-07-23 06:44:15,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 659 transitions. [2022-07-23 06:44:15,236 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 659 transitions. Word has length 19 [2022-07-23 06:44:15,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:15,237 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 659 transitions. [2022-07-23 06:44:15,237 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), 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 06:44:15,237 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 659 transitions. [2022-07-23 06:44:15,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-23 06:44:15,243 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:15,243 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] [2022-07-23 06:44:15,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 06:44:15,243 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:15,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:15,244 INFO L85 PathProgramCache]: Analyzing trace with hash 122564209, now seen corresponding path program 1 times [2022-07-23 06:44:15,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:15,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544855574] [2022-07-23 06:44:15,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:15,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:15,295 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 06:44:15,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:15,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544855574] [2022-07-23 06:44:15,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544855574] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:15,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:15,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:44:15,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933815770] [2022-07-23 06:44:15,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:15,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:44:15,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:15,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:44:15,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:44:15,296 INFO L87 Difference]: Start difference. First operand 459 states and 659 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 06:44:15,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:15,313 INFO L93 Difference]: Finished difference Result 638 states and 904 transitions. [2022-07-23 06:44:15,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:44:15,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 22 [2022-07-23 06:44:15,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:15,316 INFO L225 Difference]: With dead ends: 638 [2022-07-23 06:44:15,316 INFO L226 Difference]: Without dead ends: 638 [2022-07-23 06:44:15,316 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 06:44:15,316 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 394 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:15,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 655 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:44:15,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-07-23 06:44:15,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 613. [2022-07-23 06:44:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 531 states have (on average 1.384180790960452) internal successors, (735), 538 states have internal predecessors, (735), 60 states have call successors, (60), 22 states have call predecessors, (60), 21 states have return successors, (80), 55 states have call predecessors, (80), 53 states have call successors, (80) [2022-07-23 06:44:15,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 875 transitions. [2022-07-23 06:44:15,331 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 875 transitions. Word has length 22 [2022-07-23 06:44:15,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:15,331 INFO L495 AbstractCegarLoop]: Abstraction has 613 states and 875 transitions. [2022-07-23 06:44:15,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 06:44:15,331 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 875 transitions. [2022-07-23 06:44:15,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-23 06:44:15,332 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:15,332 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 06:44:15,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 06:44:15,332 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:15,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:15,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2116337547, now seen corresponding path program 1 times [2022-07-23 06:44:15,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:15,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831705927] [2022-07-23 06:44:15,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:15,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:15,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 06:44:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:15,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:44:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:15,385 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 06:44:15,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:15,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831705927] [2022-07-23 06:44:15,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831705927] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:15,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:15,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 06:44:15,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469372721] [2022-07-23 06:44:15,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:15,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:44:15,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:15,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:44:15,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:44:15,387 INFO L87 Difference]: Start difference. First operand 613 states and 875 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:44:15,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:15,640 INFO L93 Difference]: Finished difference Result 669 states and 949 transitions. [2022-07-23 06:44:15,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 06:44:15,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2022-07-23 06:44:15,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:15,643 INFO L225 Difference]: With dead ends: 669 [2022-07-23 06:44:15,643 INFO L226 Difference]: Without dead ends: 669 [2022-07-23 06:44:15,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:44:15,644 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 115 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:15,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1246 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:15,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2022-07-23 06:44:15,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 648. [2022-07-23 06:44:15,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 564 states have (on average 1.375886524822695) internal successors, (776), 571 states have internal predecessors, (776), 60 states have call successors, (60), 22 states have call predecessors, (60), 23 states have return successors, (85), 55 states have call predecessors, (85), 53 states have call successors, (85) [2022-07-23 06:44:15,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 921 transitions. [2022-07-23 06:44:15,678 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 921 transitions. Word has length 29 [2022-07-23 06:44:15,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:15,679 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 921 transitions. [2022-07-23 06:44:15,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:44:15,679 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 921 transitions. [2022-07-23 06:44:15,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-23 06:44:15,680 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:15,680 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 06:44:15,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-23 06:44:15,680 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:15,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:15,680 INFO L85 PathProgramCache]: Analyzing trace with hash -205375653, now seen corresponding path program 1 times [2022-07-23 06:44:15,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:15,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133641387] [2022-07-23 06:44:15,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:15,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:15,706 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 06:44:15,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:15,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133641387] [2022-07-23 06:44:15,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133641387] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:15,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:15,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:44:15,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817069135] [2022-07-23 06:44:15,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:15,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:44:15,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:15,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:44:15,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:44:15,708 INFO L87 Difference]: Start difference. First operand 648 states and 921 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 06:44:15,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:15,753 INFO L93 Difference]: Finished difference Result 660 states and 937 transitions. [2022-07-23 06:44:15,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:44:15,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 28 [2022-07-23 06:44:15,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:15,756 INFO L225 Difference]: With dead ends: 660 [2022-07-23 06:44:15,756 INFO L226 Difference]: Without dead ends: 660 [2022-07-23 06:44:15,756 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 06:44:15,757 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 20 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:15,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 778 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:44:15,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-07-23 06:44:15,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 659. [2022-07-23 06:44:15,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 575 states have (on average 1.373913043478261) internal successors, (790), 581 states have internal predecessors, (790), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (85), 55 states have call predecessors, (85), 53 states have call successors, (85) [2022-07-23 06:44:15,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 935 transitions. [2022-07-23 06:44:15,769 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 935 transitions. Word has length 28 [2022-07-23 06:44:15,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:15,769 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 935 transitions. [2022-07-23 06:44:15,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 06:44:15,769 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 935 transitions. [2022-07-23 06:44:15,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-23 06:44:15,770 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:15,770 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 06:44:15,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-23 06:44:15,771 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:15,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:15,771 INFO L85 PathProgramCache]: Analyzing trace with hash -729865897, now seen corresponding path program 1 times [2022-07-23 06:44:15,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:15,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664957416] [2022-07-23 06:44:15,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:15,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:15,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 06:44:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:15,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:44:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:15,848 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 06:44:15,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:15,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664957416] [2022-07-23 06:44:15,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664957416] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:15,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:15,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:44:15,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83168596] [2022-07-23 06:44:15,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:15,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:44:15,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:15,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:44:15,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:15,850 INFO L87 Difference]: Start difference. First operand 659 states and 935 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:16,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:16,182 INFO L93 Difference]: Finished difference Result 680 states and 962 transitions. [2022-07-23 06:44:16,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:44:16,182 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2022-07-23 06:44:16,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:16,184 INFO L225 Difference]: With dead ends: 680 [2022-07-23 06:44:16,185 INFO L226 Difference]: Without dead ends: 680 [2022-07-23 06:44:16,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:44:16,185 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 608 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:16,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1197 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:44:16,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2022-07-23 06:44:16,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 659. [2022-07-23 06:44:16,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 575 states have (on average 1.3721739130434782) internal successors, (789), 581 states have internal predecessors, (789), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (85), 55 states have call predecessors, (85), 53 states have call successors, (85) [2022-07-23 06:44:16,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 934 transitions. [2022-07-23 06:44:16,197 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 934 transitions. Word has length 30 [2022-07-23 06:44:16,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:16,197 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 934 transitions. [2022-07-23 06:44:16,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:16,197 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 934 transitions. [2022-07-23 06:44:16,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-23 06:44:16,198 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:16,198 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] [2022-07-23 06:44:16,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-23 06:44:16,199 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:16,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:16,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1222819339, now seen corresponding path program 1 times [2022-07-23 06:44:16,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:16,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238370263] [2022-07-23 06:44:16,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:16,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:16,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-23 06:44:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:16,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:44:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:16,285 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 06:44:16,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:16,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238370263] [2022-07-23 06:44:16,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238370263] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:16,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:16,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:44:16,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567395537] [2022-07-23 06:44:16,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:16,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:44:16,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:16,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:44:16,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:16,287 INFO L87 Difference]: Start difference. First operand 659 states and 934 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:16,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:16,577 INFO L93 Difference]: Finished difference Result 680 states and 961 transitions. [2022-07-23 06:44:16,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:44:16,577 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2022-07-23 06:44:16,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:16,580 INFO L225 Difference]: With dead ends: 680 [2022-07-23 06:44:16,580 INFO L226 Difference]: Without dead ends: 680 [2022-07-23 06:44:16,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:44:16,581 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 670 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:16,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 951 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:16,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2022-07-23 06:44:16,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 659. [2022-07-23 06:44:16,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 575 states have (on average 1.3704347826086956) internal successors, (788), 581 states have internal predecessors, (788), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (85), 55 states have call predecessors, (85), 53 states have call successors, (85) [2022-07-23 06:44:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 933 transitions. [2022-07-23 06:44:16,593 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 933 transitions. Word has length 32 [2022-07-23 06:44:16,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:16,594 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 933 transitions. [2022-07-23 06:44:16,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:16,594 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 933 transitions. [2022-07-23 06:44:16,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-23 06:44:16,595 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:16,595 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] [2022-07-23 06:44:16,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-23 06:44:16,595 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:16,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:16,596 INFO L85 PathProgramCache]: Analyzing trace with hash -663319401, now seen corresponding path program 1 times [2022-07-23 06:44:16,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:16,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419322095] [2022-07-23 06:44:16,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:16,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:16,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-23 06:44:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:16,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:44:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:16,641 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 06:44:16,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:16,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419322095] [2022-07-23 06:44:16,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419322095] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:16,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:16,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:44:16,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867304501] [2022-07-23 06:44:16,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:16,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:44:16,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:16,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:44:16,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:16,643 INFO L87 Difference]: Start difference. First operand 659 states and 933 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:44:16,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:16,867 INFO L93 Difference]: Finished difference Result 688 states and 969 transitions. [2022-07-23 06:44:16,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:44:16,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-07-23 06:44:16,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:16,870 INFO L225 Difference]: With dead ends: 688 [2022-07-23 06:44:16,870 INFO L226 Difference]: Without dead ends: 676 [2022-07-23 06:44:16,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:16,871 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 395 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:16,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 1470 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:16,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-07-23 06:44:16,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 657. [2022-07-23 06:44:16,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 574 states have (on average 1.3693379790940767) internal successors, (786), 580 states have internal predecessors, (786), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (84), 54 states have call predecessors, (84), 52 states have call successors, (84) [2022-07-23 06:44:16,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 929 transitions. [2022-07-23 06:44:16,882 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 929 transitions. Word has length 33 [2022-07-23 06:44:16,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:16,882 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 929 transitions. [2022-07-23 06:44:16,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:44:16,882 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 929 transitions. [2022-07-23 06:44:16,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-23 06:44:16,883 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:16,883 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] [2022-07-23 06:44:16,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-23 06:44:16,883 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:16,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:16,884 INFO L85 PathProgramCache]: Analyzing trace with hash -2133265312, now seen corresponding path program 1 times [2022-07-23 06:44:16,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:16,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897258799] [2022-07-23 06:44:16,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:16,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:16,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 06:44:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:16,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 06:44:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:16,926 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 06:44:16,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:16,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897258799] [2022-07-23 06:44:16,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897258799] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:16,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:16,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:44:16,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786921214] [2022-07-23 06:44:16,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:16,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:44:16,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:16,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:44:16,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:16,928 INFO L87 Difference]: Start difference. First operand 657 states and 929 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:44:17,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:17,175 INFO L93 Difference]: Finished difference Result 686 states and 965 transitions. [2022-07-23 06:44:17,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:44:17,176 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-07-23 06:44:17,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:17,178 INFO L225 Difference]: With dead ends: 686 [2022-07-23 06:44:17,178 INFO L226 Difference]: Without dead ends: 669 [2022-07-23 06:44:17,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:17,179 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 394 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:17,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1431 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:17,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2022-07-23 06:44:17,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 650. [2022-07-23 06:44:17,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 570 states have (on average 1.3701754385964913) internal successors, (781), 576 states have internal predecessors, (781), 57 states have call successors, (57), 22 states have call predecessors, (57), 22 states have return successors, (82), 52 states have call predecessors, (82), 50 states have call successors, (82) [2022-07-23 06:44:17,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 920 transitions. [2022-07-23 06:44:17,190 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 920 transitions. Word has length 32 [2022-07-23 06:44:17,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:17,191 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 920 transitions. [2022-07-23 06:44:17,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:44:17,191 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 920 transitions. [2022-07-23 06:44:17,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-23 06:44:17,192 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:17,192 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 06:44:17,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-23 06:44:17,192 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:17,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:17,193 INFO L85 PathProgramCache]: Analyzing trace with hash -608614884, now seen corresponding path program 1 times [2022-07-23 06:44:17,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:17,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785068754] [2022-07-23 06:44:17,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:17,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:17,214 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 06:44:17,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:17,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785068754] [2022-07-23 06:44:17,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785068754] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:17,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:17,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:44:17,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156115913] [2022-07-23 06:44:17,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:17,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:44:17,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:17,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:44:17,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:44:17,216 INFO L87 Difference]: Start difference. First operand 650 states and 920 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 06:44:17,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:17,229 INFO L93 Difference]: Finished difference Result 666 states and 931 transitions. [2022-07-23 06:44:17,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:44:17,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 30 [2022-07-23 06:44:17,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:17,232 INFO L225 Difference]: With dead ends: 666 [2022-07-23 06:44:17,232 INFO L226 Difference]: Without dead ends: 625 [2022-07-23 06:44:17,232 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 06:44:17,232 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 84 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:17,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 880 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:44:17,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2022-07-23 06:44:17,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 621. [2022-07-23 06:44:17,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 545 states have (on average 1.3688073394495412) internal successors, (746), 552 states have internal predecessors, (746), 55 states have call successors, (55), 21 states have call predecessors, (55), 20 states have return successors, (78), 48 states have call predecessors, (78), 48 states have call successors, (78) [2022-07-23 06:44:17,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 879 transitions. [2022-07-23 06:44:17,243 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 879 transitions. Word has length 30 [2022-07-23 06:44:17,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:17,243 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 879 transitions. [2022-07-23 06:44:17,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 06:44:17,243 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 879 transitions. [2022-07-23 06:44:17,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-23 06:44:17,244 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:17,244 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 06:44:17,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-23 06:44:17,244 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:17,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:17,245 INFO L85 PathProgramCache]: Analyzing trace with hash -444205772, now seen corresponding path program 1 times [2022-07-23 06:44:17,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:17,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897874317] [2022-07-23 06:44:17,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:17,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:17,280 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 06:44:17,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:17,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897874317] [2022-07-23 06:44:17,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897874317] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:17,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:17,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:44:17,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374093690] [2022-07-23 06:44:17,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:17,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:44:17,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:17,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:44:17,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:44:17,282 INFO L87 Difference]: Start difference. First operand 621 states and 879 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 06:44:17,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:17,309 INFO L93 Difference]: Finished difference Result 637 states and 896 transitions. [2022-07-23 06:44:17,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 06:44:17,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 30 [2022-07-23 06:44:17,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:17,311 INFO L225 Difference]: With dead ends: 637 [2022-07-23 06:44:17,311 INFO L226 Difference]: Without dead ends: 637 [2022-07-23 06:44:17,311 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 06:44:17,312 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 27 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:17,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 1213 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:44:17,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2022-07-23 06:44:17,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 623. [2022-07-23 06:44:17,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 547 states have (on average 1.3674588665447898) internal successors, (748), 554 states have internal predecessors, (748), 55 states have call successors, (55), 21 states have call predecessors, (55), 20 states have return successors, (78), 48 states have call predecessors, (78), 48 states have call successors, (78) [2022-07-23 06:44:17,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 881 transitions. [2022-07-23 06:44:17,323 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 881 transitions. Word has length 30 [2022-07-23 06:44:17,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:17,323 INFO L495 AbstractCegarLoop]: Abstraction has 623 states and 881 transitions. [2022-07-23 06:44:17,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 06:44:17,323 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 881 transitions. [2022-07-23 06:44:17,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-23 06:44:17,324 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:17,325 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] [2022-07-23 06:44:17,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-23 06:44:17,325 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:17,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:17,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1157172862, now seen corresponding path program 1 times [2022-07-23 06:44:17,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:17,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303671723] [2022-07-23 06:44:17,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:17,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:17,356 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 06:44:17,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:17,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303671723] [2022-07-23 06:44:17,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303671723] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:17,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:17,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:44:17,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962741225] [2022-07-23 06:44:17,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:17,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:44:17,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:17,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:44:17,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:44:17,358 INFO L87 Difference]: Start difference. First operand 623 states and 881 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 06:44:17,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:17,383 INFO L93 Difference]: Finished difference Result 639 states and 898 transitions. [2022-07-23 06:44:17,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 06:44:17,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 31 [2022-07-23 06:44:17,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:17,386 INFO L225 Difference]: With dead ends: 639 [2022-07-23 06:44:17,386 INFO L226 Difference]: Without dead ends: 639 [2022-07-23 06:44:17,386 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 06:44:17,387 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 28 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:17,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1217 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:44:17,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2022-07-23 06:44:17,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 623. [2022-07-23 06:44:17,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 547 states have (on average 1.3674588665447898) internal successors, (748), 554 states have internal predecessors, (748), 55 states have call successors, (55), 21 states have call predecessors, (55), 20 states have return successors, (78), 48 states have call predecessors, (78), 48 states have call successors, (78) [2022-07-23 06:44:17,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 881 transitions. [2022-07-23 06:44:17,422 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 881 transitions. Word has length 31 [2022-07-23 06:44:17,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:17,422 INFO L495 AbstractCegarLoop]: Abstraction has 623 states and 881 transitions. [2022-07-23 06:44:17,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 06:44:17,422 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 881 transitions. [2022-07-23 06:44:17,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-23 06:44:17,423 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:17,423 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 06:44:17,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-23 06:44:17,423 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:17,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:17,424 INFO L85 PathProgramCache]: Analyzing trace with hash 791167666, now seen corresponding path program 1 times [2022-07-23 06:44:17,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:17,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185439679] [2022-07-23 06:44:17,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:17,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:17,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 06:44:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:17,462 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 06:44:17,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:17,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185439679] [2022-07-23 06:44:17,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185439679] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:17,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:17,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:44:17,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313080494] [2022-07-23 06:44:17,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:17,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:44:17,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:17,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:44:17,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:44:17,464 INFO L87 Difference]: Start difference. First operand 623 states and 881 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:44:17,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:17,677 INFO L93 Difference]: Finished difference Result 881 states and 1243 transitions. [2022-07-23 06:44:17,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 06:44:17,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 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 06:44:17,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:17,680 INFO L225 Difference]: With dead ends: 881 [2022-07-23 06:44:17,680 INFO L226 Difference]: Without dead ends: 881 [2022-07-23 06:44:17,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 06:44:17,682 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 162 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:17,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1105 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:17,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2022-07-23 06:44:17,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 702. [2022-07-23 06:44:17,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 622 states have (on average 1.3762057877813505) internal successors, (856), 630 states have internal predecessors, (856), 57 states have call successors, (57), 23 states have call predecessors, (57), 22 states have return successors, (80), 49 states have call predecessors, (80), 50 states have call successors, (80) [2022-07-23 06:44:17,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 993 transitions. [2022-07-23 06:44:17,697 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 993 transitions. Word has length 34 [2022-07-23 06:44:17,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:17,697 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 993 transitions. [2022-07-23 06:44:17,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:44:17,698 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 993 transitions. [2022-07-23 06:44:17,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-23 06:44:17,698 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:17,698 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] [2022-07-23 06:44:17,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-23 06:44:17,699 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:17,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:17,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1367133224, now seen corresponding path program 1 times [2022-07-23 06:44:17,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:17,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847865756] [2022-07-23 06:44:17,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:17,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:17,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 06:44:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:17,724 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 06:44:17,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:17,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847865756] [2022-07-23 06:44:17,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847865756] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:17,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:17,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 06:44:17,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499683518] [2022-07-23 06:44:17,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:17,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:44:17,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:17,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:44:17,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:44:17,725 INFO L87 Difference]: Start difference. First operand 702 states and 993 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 06:44:17,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:17,867 INFO L93 Difference]: Finished difference Result 730 states and 1027 transitions. [2022-07-23 06:44:17,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 06:44:17,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 33 [2022-07-23 06:44:17,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:17,870 INFO L225 Difference]: With dead ends: 730 [2022-07-23 06:44:17,870 INFO L226 Difference]: Without dead ends: 717 [2022-07-23 06:44:17,870 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 06:44:17,871 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 85 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:17,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1388 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:17,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-07-23 06:44:17,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 700. [2022-07-23 06:44:17,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 621 states have (on average 1.3752012882447664) internal successors, (854), 629 states have internal predecessors, (854), 56 states have call successors, (56), 23 states have call predecessors, (56), 22 states have return successors, (79), 48 states have call predecessors, (79), 49 states have call successors, (79) [2022-07-23 06:44:17,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 989 transitions. [2022-07-23 06:44:17,882 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 989 transitions. Word has length 33 [2022-07-23 06:44:17,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:17,882 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 989 transitions. [2022-07-23 06:44:17,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 06:44:17,882 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 989 transitions. [2022-07-23 06:44:17,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-23 06:44:17,883 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:17,883 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 06:44:17,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-23 06:44:17,883 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:17,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:17,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1481962220, now seen corresponding path program 1 times [2022-07-23 06:44:17,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:17,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258827250] [2022-07-23 06:44:17,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:17,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:17,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 06:44:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:17,926 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 06:44:17,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:17,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258827250] [2022-07-23 06:44:17,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258827250] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:17,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:17,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 06:44:17,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48586735] [2022-07-23 06:44:17,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:17,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:44:17,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:17,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:44:17,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:44:17,928 INFO L87 Difference]: Start difference. First operand 700 states and 989 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:44:18,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:18,231 INFO L93 Difference]: Finished difference Result 729 states and 1012 transitions. [2022-07-23 06:44:18,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 06:44:18,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 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 06:44:18,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:18,234 INFO L225 Difference]: With dead ends: 729 [2022-07-23 06:44:18,234 INFO L226 Difference]: Without dead ends: 729 [2022-07-23 06:44:18,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:18,234 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 721 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:18,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 935 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:44:18,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2022-07-23 06:44:18,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 691. [2022-07-23 06:44:18,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 612 states have (on average 1.3611111111111112) internal successors, (833), 620 states have internal predecessors, (833), 56 states have call successors, (56), 23 states have call predecessors, (56), 22 states have return successors, (79), 48 states have call predecessors, (79), 49 states have call successors, (79) [2022-07-23 06:44:18,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 968 transitions. [2022-07-23 06:44:18,245 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 968 transitions. Word has length 35 [2022-07-23 06:44:18,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:18,246 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 968 transitions. [2022-07-23 06:44:18,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:44:18,246 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 968 transitions. [2022-07-23 06:44:18,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-23 06:44:18,247 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:18,247 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 06:44:18,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-23 06:44:18,247 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:18,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:18,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1698462691, now seen corresponding path program 1 times [2022-07-23 06:44:18,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:18,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179545483] [2022-07-23 06:44:18,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:18,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:18,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 06:44:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:18,274 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 06:44:18,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:18,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179545483] [2022-07-23 06:44:18,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179545483] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:18,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:18,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 06:44:18,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950447057] [2022-07-23 06:44:18,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:18,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:44:18,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:18,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:44:18,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:44:18,275 INFO L87 Difference]: Start difference. First operand 691 states and 968 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 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 06:44:18,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:18,418 INFO L93 Difference]: Finished difference Result 719 states and 1002 transitions. [2022-07-23 06:44:18,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 06:44:18,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 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 06:44:18,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:18,420 INFO L225 Difference]: With dead ends: 719 [2022-07-23 06:44:18,420 INFO L226 Difference]: Without dead ends: 706 [2022-07-23 06:44:18,421 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 06:44:18,421 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 85 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:18,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1375 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:18,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2022-07-23 06:44:18,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 689. [2022-07-23 06:44:18,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 611 states have (on average 1.3600654664484453) internal successors, (831), 619 states have internal predecessors, (831), 55 states have call successors, (55), 23 states have call predecessors, (55), 22 states have return successors, (78), 47 states have call predecessors, (78), 48 states have call successors, (78) [2022-07-23 06:44:18,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 964 transitions. [2022-07-23 06:44:18,434 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 964 transitions. Word has length 35 [2022-07-23 06:44:18,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:18,434 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 964 transitions. [2022-07-23 06:44:18,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 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 06:44:18,434 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 964 transitions. [2022-07-23 06:44:18,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-23 06:44:18,435 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:18,435 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 06:44:18,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-23 06:44:18,435 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:18,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:18,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1261225060, now seen corresponding path program 1 times [2022-07-23 06:44:18,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:18,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813773658] [2022-07-23 06:44:18,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:18,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:18,457 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 06:44:18,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:18,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813773658] [2022-07-23 06:44:18,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813773658] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:18,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:18,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 06:44:18,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902963953] [2022-07-23 06:44:18,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:18,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 06:44:18,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:18,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 06:44:18,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 06:44:18,459 INFO L87 Difference]: Start difference. First operand 689 states and 964 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 06:44:18,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:18,489 INFO L93 Difference]: Finished difference Result 697 states and 975 transitions. [2022-07-23 06:44:18,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 06:44:18,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 37 [2022-07-23 06:44:18,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:18,492 INFO L225 Difference]: With dead ends: 697 [2022-07-23 06:44:18,492 INFO L226 Difference]: Without dead ends: 697 [2022-07-23 06:44:18,492 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 06:44:18,493 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 5 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:18,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 766 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:44:18,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2022-07-23 06:44:18,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2022-07-23 06:44:18,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 619 states have (on average 1.3602584814216478) internal successors, (842), 627 states have internal predecessors, (842), 55 states have call successors, (55), 23 states have call predecessors, (55), 22 states have return successors, (78), 47 states have call predecessors, (78), 48 states have call successors, (78) [2022-07-23 06:44:18,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 975 transitions. [2022-07-23 06:44:18,504 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 975 transitions. Word has length 37 [2022-07-23 06:44:18,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:18,504 INFO L495 AbstractCegarLoop]: Abstraction has 697 states and 975 transitions. [2022-07-23 06:44:18,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 06:44:18,504 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 975 transitions. [2022-07-23 06:44:18,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-23 06:44:18,505 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:18,505 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 06:44:18,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-23 06:44:18,505 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:18,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:18,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1320764659, now seen corresponding path program 1 times [2022-07-23 06:44:18,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:18,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265512984] [2022-07-23 06:44:18,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:18,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:18,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 06:44:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:18,551 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 06:44:18,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:18,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265512984] [2022-07-23 06:44:18,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265512984] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:18,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:18,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:44:18,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100482169] [2022-07-23 06:44:18,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:18,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:44:18,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:18,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:44:18,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:44:18,553 INFO L87 Difference]: Start difference. First operand 697 states and 975 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 06:44:18,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:18,749 INFO L93 Difference]: Finished difference Result 719 states and 999 transitions. [2022-07-23 06:44:18,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 06:44:18,749 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 06:44:18,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:18,751 INFO L225 Difference]: With dead ends: 719 [2022-07-23 06:44:18,752 INFO L226 Difference]: Without dead ends: 704 [2022-07-23 06:44:18,752 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 06:44:18,752 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 96 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:18,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 1693 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:18,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2022-07-23 06:44:18,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 697. [2022-07-23 06:44:18,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 619 states have (on average 1.3408723747980613) internal successors, (830), 627 states have internal predecessors, (830), 55 states have call successors, (55), 23 states have call predecessors, (55), 22 states have return successors, (78), 47 states have call predecessors, (78), 48 states have call successors, (78) [2022-07-23 06:44:18,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 963 transitions. [2022-07-23 06:44:18,763 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 963 transitions. Word has length 38 [2022-07-23 06:44:18,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:18,764 INFO L495 AbstractCegarLoop]: Abstraction has 697 states and 963 transitions. [2022-07-23 06:44:18,764 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 06:44:18,764 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 963 transitions. [2022-07-23 06:44:18,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-23 06:44:18,765 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:18,765 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 06:44:18,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-23 06:44:18,765 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:18,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:18,766 INFO L85 PathProgramCache]: Analyzing trace with hash -257120717, now seen corresponding path program 1 times [2022-07-23 06:44:18,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:18,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657948123] [2022-07-23 06:44:18,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:18,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:18,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 06:44:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:18,816 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 06:44:18,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:18,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657948123] [2022-07-23 06:44:18,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657948123] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:18,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:18,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:44:18,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596754021] [2022-07-23 06:44:18,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:18,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:44:18,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:18,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:44:18,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:18,818 INFO L87 Difference]: Start difference. First operand 697 states and 963 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 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 06:44:19,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:19,101 INFO L93 Difference]: Finished difference Result 717 states and 983 transitions. [2022-07-23 06:44:19,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 06:44:19,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 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 06:44:19,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:19,105 INFO L225 Difference]: With dead ends: 717 [2022-07-23 06:44:19,105 INFO L226 Difference]: Without dead ends: 717 [2022-07-23 06:44:19,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-07-23 06:44:19,105 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 525 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:19,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 1399 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:19,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-07-23 06:44:19,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 707. [2022-07-23 06:44:19,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 626 states have (on average 1.3354632587859425) internal successors, (836), 637 states have internal predecessors, (836), 55 states have call successors, (55), 23 states have call predecessors, (55), 25 states have return successors, (82), 47 states have call predecessors, (82), 48 states have call successors, (82) [2022-07-23 06:44:19,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 973 transitions. [2022-07-23 06:44:19,116 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 973 transitions. Word has length 38 [2022-07-23 06:44:19,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:19,117 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 973 transitions. [2022-07-23 06:44:19,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 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 06:44:19,117 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 973 transitions. [2022-07-23 06:44:19,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-23 06:44:19,118 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:19,118 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] [2022-07-23 06:44:19,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-23 06:44:19,118 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:19,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:19,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1775362044, now seen corresponding path program 1 times [2022-07-23 06:44:19,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:19,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590725626] [2022-07-23 06:44:19,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:19,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:19,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 06:44:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:19,154 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 06:44:19,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:19,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590725626] [2022-07-23 06:44:19,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590725626] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:19,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:19,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:44:19,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789475446] [2022-07-23 06:44:19,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:19,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:44:19,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:19,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:44:19,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:19,156 INFO L87 Difference]: Start difference. First operand 707 states and 973 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 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 06:44:19,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:19,336 INFO L93 Difference]: Finished difference Result 724 states and 990 transitions. [2022-07-23 06:44:19,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:44:19,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 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 39 [2022-07-23 06:44:19,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:19,339 INFO L225 Difference]: With dead ends: 724 [2022-07-23 06:44:19,340 INFO L226 Difference]: Without dead ends: 705 [2022-07-23 06:44:19,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:44:19,340 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 329 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:19,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1719 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:19,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2022-07-23 06:44:19,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 699. [2022-07-23 06:44:19,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 619 states have (on average 1.3344103392568658) internal successors, (826), 630 states have internal predecessors, (826), 54 states have call successors, (54), 23 states have call predecessors, (54), 25 states have return successors, (81), 46 states have call predecessors, (81), 47 states have call successors, (81) [2022-07-23 06:44:19,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 961 transitions. [2022-07-23 06:44:19,350 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 961 transitions. Word has length 39 [2022-07-23 06:44:19,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:19,350 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 961 transitions. [2022-07-23 06:44:19,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 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 06:44:19,351 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 961 transitions. [2022-07-23 06:44:19,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-23 06:44:19,351 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:19,351 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] [2022-07-23 06:44:19,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-23 06:44:19,352 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:19,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:19,352 INFO L85 PathProgramCache]: Analyzing trace with hash 777524033, now seen corresponding path program 1 times [2022-07-23 06:44:19,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:19,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352599129] [2022-07-23 06:44:19,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:19,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:19,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 06:44:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:19,395 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 06:44:19,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:19,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352599129] [2022-07-23 06:44:19,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352599129] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:19,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:19,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:44:19,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702915585] [2022-07-23 06:44:19,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:19,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:44:19,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:19,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:44:19,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:19,396 INFO L87 Difference]: Start difference. First operand 699 states and 961 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 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 06:44:19,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:19,586 INFO L93 Difference]: Finished difference Result 734 states and 1000 transitions. [2022-07-23 06:44:19,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:44:19,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 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 39 [2022-07-23 06:44:19,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:19,588 INFO L225 Difference]: With dead ends: 734 [2022-07-23 06:44:19,589 INFO L226 Difference]: Without dead ends: 709 [2022-07-23 06:44:19,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:44:19,589 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 343 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:19,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1636 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:19,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2022-07-23 06:44:19,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 686. [2022-07-23 06:44:19,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 607 states have (on average 1.331136738056013) internal successors, (808), 618 states have internal predecessors, (808), 53 states have call successors, (53), 23 states have call predecessors, (53), 25 states have return successors, (80), 45 states have call predecessors, (80), 46 states have call successors, (80) [2022-07-23 06:44:19,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 941 transitions. [2022-07-23 06:44:19,600 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 941 transitions. Word has length 39 [2022-07-23 06:44:19,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:19,600 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 941 transitions. [2022-07-23 06:44:19,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 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 06:44:19,600 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 941 transitions. [2022-07-23 06:44:19,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-23 06:44:19,601 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:19,601 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] [2022-07-23 06:44:19,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-23 06:44:19,601 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:19,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:19,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1595982943, now seen corresponding path program 1 times [2022-07-23 06:44:19,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:19,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551992616] [2022-07-23 06:44:19,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:19,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:19,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 06:44:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:19,645 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 06:44:19,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:19,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551992616] [2022-07-23 06:44:19,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551992616] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:19,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:19,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:44:19,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339157450] [2022-07-23 06:44:19,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:19,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:44:19,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:19,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:44:19,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:19,647 INFO L87 Difference]: Start difference. First operand 686 states and 941 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 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 06:44:19,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:19,850 INFO L93 Difference]: Finished difference Result 692 states and 947 transitions. [2022-07-23 06:44:19,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:44:19,850 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 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 39 [2022-07-23 06:44:19,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:19,852 INFO L225 Difference]: With dead ends: 692 [2022-07-23 06:44:19,853 INFO L226 Difference]: Without dead ends: 689 [2022-07-23 06:44:19,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:19,853 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 58 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:19,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 1679 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:19,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-07-23 06:44:19,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 688. [2022-07-23 06:44:19,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 608 states have (on average 1.330592105263158) internal successors, (809), 620 states have internal predecessors, (809), 53 states have call successors, (53), 23 states have call predecessors, (53), 26 states have return successors, (81), 45 states have call predecessors, (81), 46 states have call successors, (81) [2022-07-23 06:44:19,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 943 transitions. [2022-07-23 06:44:19,863 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 943 transitions. Word has length 39 [2022-07-23 06:44:19,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:19,863 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 943 transitions. [2022-07-23 06:44:19,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 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 06:44:19,863 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 943 transitions. [2022-07-23 06:44:19,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-23 06:44:19,864 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:19,864 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] [2022-07-23 06:44:19,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-23 06:44:19,864 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:19,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:19,865 INFO L85 PathProgramCache]: Analyzing trace with hash -398634571, now seen corresponding path program 1 times [2022-07-23 06:44:19,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:19,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441177368] [2022-07-23 06:44:19,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:19,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:19,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:19,893 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 06:44:19,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:19,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441177368] [2022-07-23 06:44:19,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441177368] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:19,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:19,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 06:44:19,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632198577] [2022-07-23 06:44:19,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:19,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:44:19,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:19,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:44:19,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:44:19,895 INFO L87 Difference]: Start difference. First operand 688 states and 943 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:44:20,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:20,080 INFO L93 Difference]: Finished difference Result 510 states and 668 transitions. [2022-07-23 06:44:20,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 06:44:20,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2022-07-23 06:44:20,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:20,083 INFO L225 Difference]: With dead ends: 510 [2022-07-23 06:44:20,083 INFO L226 Difference]: Without dead ends: 510 [2022-07-23 06:44:20,083 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 06:44:20,083 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 478 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:20,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 937 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:20,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-07-23 06:44:20,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 469. [2022-07-23 06:44:20,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 411 states have (on average 1.29683698296837) internal successors, (533), 422 states have internal predecessors, (533), 38 states have call successors, (38), 16 states have call predecessors, (38), 19 states have return successors, (45), 31 states have call predecessors, (45), 31 states have call successors, (45) [2022-07-23 06:44:20,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 616 transitions. [2022-07-23 06:44:20,090 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 616 transitions. Word has length 41 [2022-07-23 06:44:20,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:20,091 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 616 transitions. [2022-07-23 06:44:20,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:44:20,091 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 616 transitions. [2022-07-23 06:44:20,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-23 06:44:20,092 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:20,092 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] [2022-07-23 06:44:20,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-23 06:44:20,092 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:20,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:20,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1554772088, now seen corresponding path program 1 times [2022-07-23 06:44:20,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:20,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017727962] [2022-07-23 06:44:20,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:20,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:20,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 06:44:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:20,120 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 06:44:20,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:20,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017727962] [2022-07-23 06:44:20,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017727962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:20,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:20,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:44:20,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486078877] [2022-07-23 06:44:20,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:20,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:44:20,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:20,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:44:20,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:44:20,128 INFO L87 Difference]: Start difference. First operand 469 states and 616 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 06:44:20,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:20,284 INFO L93 Difference]: Finished difference Result 599 states and 783 transitions. [2022-07-23 06:44:20,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 06:44:20,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 40 [2022-07-23 06:44:20,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:20,287 INFO L225 Difference]: With dead ends: 599 [2022-07-23 06:44:20,287 INFO L226 Difference]: Without dead ends: 583 [2022-07-23 06:44:20,287 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 06:44:20,287 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 180 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:20,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 951 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:20,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-07-23 06:44:20,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 523. [2022-07-23 06:44:20,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 459 states have (on average 1.289760348583878) internal successors, (592), 464 states have internal predecessors, (592), 40 states have call successors, (40), 18 states have call predecessors, (40), 23 states have return successors, (57), 41 states have call predecessors, (57), 33 states have call successors, (57) [2022-07-23 06:44:20,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 689 transitions. [2022-07-23 06:44:20,295 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 689 transitions. Word has length 40 [2022-07-23 06:44:20,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:20,295 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 689 transitions. [2022-07-23 06:44:20,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 06:44:20,296 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 689 transitions. [2022-07-23 06:44:20,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-23 06:44:20,296 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:20,296 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] [2022-07-23 06:44:20,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-23 06:44:20,297 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:20,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:20,297 INFO L85 PathProgramCache]: Analyzing trace with hash -2126401672, now seen corresponding path program 1 times [2022-07-23 06:44:20,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:20,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555480250] [2022-07-23 06:44:20,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:20,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:20,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 06:44:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:20,338 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 06:44:20,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:20,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555480250] [2022-07-23 06:44:20,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555480250] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:20,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:20,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:44:20,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583302237] [2022-07-23 06:44:20,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:20,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:44:20,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:20,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:44:20,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:44:20,340 INFO L87 Difference]: Start difference. First operand 523 states and 689 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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 06:44:20,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:20,603 INFO L93 Difference]: Finished difference Result 515 states and 683 transitions. [2022-07-23 06:44:20,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:44:20,603 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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 40 [2022-07-23 06:44:20,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:20,605 INFO L225 Difference]: With dead ends: 515 [2022-07-23 06:44:20,605 INFO L226 Difference]: Without dead ends: 474 [2022-07-23 06:44:20,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:44:20,606 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 447 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:20,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1030 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:20,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-07-23 06:44:20,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 447. [2022-07-23 06:44:20,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 391 states have (on average 1.3094629156010231) internal successors, (512), 403 states have internal predecessors, (512), 37 states have call successors, (37), 15 states have call predecessors, (37), 18 states have return successors, (45), 29 states have call predecessors, (45), 30 states have call successors, (45) [2022-07-23 06:44:20,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 594 transitions. [2022-07-23 06:44:20,613 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 594 transitions. Word has length 40 [2022-07-23 06:44:20,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:20,613 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 594 transitions. [2022-07-23 06:44:20,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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 06:44:20,613 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 594 transitions. [2022-07-23 06:44:20,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-23 06:44:20,614 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:20,614 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] [2022-07-23 06:44:20,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-23 06:44:20,614 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:20,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:20,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1405383092, now seen corresponding path program 1 times [2022-07-23 06:44:20,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:20,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514604834] [2022-07-23 06:44:20,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:20,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:20,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 06:44:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:20,669 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 06:44:20,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:20,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514604834] [2022-07-23 06:44:20,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514604834] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:20,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:20,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:44:20,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529231084] [2022-07-23 06:44:20,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:20,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:44:20,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:20,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:44:20,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:20,671 INFO L87 Difference]: Start difference. First operand 447 states and 594 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 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 06:44:20,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:20,924 INFO L93 Difference]: Finished difference Result 492 states and 657 transitions. [2022-07-23 06:44:20,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:44:20,924 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 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 41 [2022-07-23 06:44:20,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:20,926 INFO L225 Difference]: With dead ends: 492 [2022-07-23 06:44:20,926 INFO L226 Difference]: Without dead ends: 491 [2022-07-23 06:44:20,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:44:20,926 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 282 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:20,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 1759 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:20,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-07-23 06:44:20,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 462. [2022-07-23 06:44:20,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 405 states have (on average 1.2987654320987654) internal successors, (526), 417 states have internal predecessors, (526), 37 states have call successors, (37), 15 states have call predecessors, (37), 19 states have return successors, (53), 30 states have call predecessors, (53), 30 states have call successors, (53) [2022-07-23 06:44:20,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 616 transitions. [2022-07-23 06:44:20,933 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 616 transitions. Word has length 41 [2022-07-23 06:44:20,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:20,933 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 616 transitions. [2022-07-23 06:44:20,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 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 06:44:20,934 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 616 transitions. [2022-07-23 06:44:20,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-23 06:44:20,934 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:20,934 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] [2022-07-23 06:44:20,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-23 06:44:20,935 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:20,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:20,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1405659922, now seen corresponding path program 1 times [2022-07-23 06:44:20,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:20,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700901053] [2022-07-23 06:44:20,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:20,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:20,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 06:44:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:20,977 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 06:44:20,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:20,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700901053] [2022-07-23 06:44:20,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700901053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:20,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:20,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:44:20,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345168297] [2022-07-23 06:44:20,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:20,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:44:20,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:20,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:44:20,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:20,979 INFO L87 Difference]: Start difference. First operand 462 states and 616 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 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 06:44:21,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:21,221 INFO L93 Difference]: Finished difference Result 479 states and 634 transitions. [2022-07-23 06:44:21,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:44:21,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 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 41 [2022-07-23 06:44:21,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:21,223 INFO L225 Difference]: With dead ends: 479 [2022-07-23 06:44:21,223 INFO L226 Difference]: Without dead ends: 469 [2022-07-23 06:44:21,223 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 06:44:21,223 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 78 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:21,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1895 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:21,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-07-23 06:44:21,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 459. [2022-07-23 06:44:21,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 402 states have (on average 1.300995024875622) internal successors, (523), 415 states have internal predecessors, (523), 37 states have call successors, (37), 15 states have call predecessors, (37), 19 states have return successors, (52), 29 states have call predecessors, (52), 30 states have call successors, (52) [2022-07-23 06:44:21,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 612 transitions. [2022-07-23 06:44:21,230 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 612 transitions. Word has length 41 [2022-07-23 06:44:21,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:21,230 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 612 transitions. [2022-07-23 06:44:21,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 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 06:44:21,231 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 612 transitions. [2022-07-23 06:44:21,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-23 06:44:21,231 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:21,231 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] [2022-07-23 06:44:21,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-23 06:44:21,232 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:21,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:21,232 INFO L85 PathProgramCache]: Analyzing trace with hash 188020548, now seen corresponding path program 1 times [2022-07-23 06:44:21,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:21,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488374634] [2022-07-23 06:44:21,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:21,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:21,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-23 06:44:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:21,274 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 06:44:21,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:21,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488374634] [2022-07-23 06:44:21,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488374634] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:21,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:21,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:44:21,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145186184] [2022-07-23 06:44:21,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:21,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:44:21,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:21,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:44:21,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:44:21,276 INFO L87 Difference]: Start difference. First operand 459 states and 612 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 06:44:21,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:21,540 INFO L93 Difference]: Finished difference Result 515 states and 681 transitions. [2022-07-23 06:44:21,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:44:21,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 42 [2022-07-23 06:44:21,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:21,543 INFO L225 Difference]: With dead ends: 515 [2022-07-23 06:44:21,543 INFO L226 Difference]: Without dead ends: 503 [2022-07-23 06:44:21,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 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 06:44:21,544 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 600 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:21,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 1073 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:21,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-07-23 06:44:21,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 445. [2022-07-23 06:44:21,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 390 states have (on average 1.3076923076923077) internal successors, (510), 402 states have internal predecessors, (510), 36 states have call successors, (36), 15 states have call predecessors, (36), 18 states have return successors, (44), 28 states have call predecessors, (44), 29 states have call successors, (44) [2022-07-23 06:44:21,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 590 transitions. [2022-07-23 06:44:21,550 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 590 transitions. Word has length 42 [2022-07-23 06:44:21,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:21,550 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 590 transitions. [2022-07-23 06:44:21,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 06:44:21,551 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 590 transitions. [2022-07-23 06:44:21,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-23 06:44:21,551 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:21,551 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 06:44:21,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-23 06:44:21,552 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:21,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:21,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1315082489, now seen corresponding path program 1 times [2022-07-23 06:44:21,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:21,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427293248] [2022-07-23 06:44:21,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:21,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:21,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:21,619 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 06:44:21,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:21,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427293248] [2022-07-23 06:44:21,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427293248] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:21,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:21,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:44:21,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301971143] [2022-07-23 06:44:21,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:21,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:44:21,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:21,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:44:21,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:21,621 INFO L87 Difference]: Start difference. First operand 445 states and 590 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:44:21,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:21,805 INFO L93 Difference]: Finished difference Result 405 states and 531 transitions. [2022-07-23 06:44:21,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 06:44:21,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 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 06:44:21,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:21,807 INFO L225 Difference]: With dead ends: 405 [2022-07-23 06:44:21,807 INFO L226 Difference]: Without dead ends: 405 [2022-07-23 06:44:21,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:21,807 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 102 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:21,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1714 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:21,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-07-23 06:44:21,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 399. [2022-07-23 06:44:21,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 350 states have (on average 1.2885714285714285) internal successors, (451), 358 states have internal predecessors, (451), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (39), 27 states have call predecessors, (39), 28 states have call successors, (39) [2022-07-23 06:44:21,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 524 transitions. [2022-07-23 06:44:21,833 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 524 transitions. Word has length 44 [2022-07-23 06:44:21,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:21,833 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 524 transitions. [2022-07-23 06:44:21,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:44:21,834 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 524 transitions. [2022-07-23 06:44:21,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-23 06:44:21,834 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:21,834 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] [2022-07-23 06:44:21,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-23 06:44:21,835 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:21,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:21,835 INFO L85 PathProgramCache]: Analyzing trace with hash 817778302, now seen corresponding path program 1 times [2022-07-23 06:44:21,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:21,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970500847] [2022-07-23 06:44:21,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:21,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:21,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:21,884 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 06:44:21,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:21,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970500847] [2022-07-23 06:44:21,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970500847] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:21,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:21,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:44:21,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733465627] [2022-07-23 06:44:21,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:21,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:44:21,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:21,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:44:21,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:44:21,886 INFO L87 Difference]: Start difference. First operand 399 states and 524 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:44:22,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:22,108 INFO L93 Difference]: Finished difference Result 405 states and 529 transitions. [2022-07-23 06:44:22,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 06:44:22,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2022-07-23 06:44:22,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:22,109 INFO L225 Difference]: With dead ends: 405 [2022-07-23 06:44:22,109 INFO L226 Difference]: Without dead ends: 405 [2022-07-23 06:44:22,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:44:22,110 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 390 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:22,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 1008 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:22,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-07-23 06:44:22,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 399. [2022-07-23 06:44:22,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 350 states have (on average 1.282857142857143) internal successors, (449), 358 states have internal predecessors, (449), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (39), 27 states have call predecessors, (39), 28 states have call successors, (39) [2022-07-23 06:44:22,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 522 transitions. [2022-07-23 06:44:22,118 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 522 transitions. Word has length 46 [2022-07-23 06:44:22,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:22,118 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 522 transitions. [2022-07-23 06:44:22,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:44:22,118 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 522 transitions. [2022-07-23 06:44:22,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-23 06:44:22,119 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:22,119 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] [2022-07-23 06:44:22,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-23 06:44:22,119 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:22,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:22,120 INFO L85 PathProgramCache]: Analyzing trace with hash 351110669, now seen corresponding path program 1 times [2022-07-23 06:44:22,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:22,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662430627] [2022-07-23 06:44:22,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:22,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:22,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-23 06:44:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:22,171 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 06:44:22,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:22,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662430627] [2022-07-23 06:44:22,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662430627] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:22,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:22,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:44:22,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395115683] [2022-07-23 06:44:22,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:22,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:44:22,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:22,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:44:22,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:22,173 INFO L87 Difference]: Start difference. First operand 399 states and 522 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 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 06:44:22,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:22,412 INFO L93 Difference]: Finished difference Result 414 states and 537 transitions. [2022-07-23 06:44:22,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:44:22,412 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 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 46 [2022-07-23 06:44:22,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:22,414 INFO L225 Difference]: With dead ends: 414 [2022-07-23 06:44:22,414 INFO L226 Difference]: Without dead ends: 401 [2022-07-23 06:44:22,414 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 06:44:22,414 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 74 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1883 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:22,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1883 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:22,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-07-23 06:44:22,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 395. [2022-07-23 06:44:22,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 347 states have (on average 1.282420749279539) internal successors, (445), 355 states have internal predecessors, (445), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (38), 26 states have call predecessors, (38), 27 states have call successors, (38) [2022-07-23 06:44:22,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 516 transitions. [2022-07-23 06:44:22,421 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 516 transitions. Word has length 46 [2022-07-23 06:44:22,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:22,421 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 516 transitions. [2022-07-23 06:44:22,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 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 06:44:22,421 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 516 transitions. [2022-07-23 06:44:22,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-23 06:44:22,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:22,422 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 06:44:22,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-23 06:44:22,422 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:22,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:22,423 INFO L85 PathProgramCache]: Analyzing trace with hash 2034007966, now seen corresponding path program 1 times [2022-07-23 06:44:22,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:22,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895873074] [2022-07-23 06:44:22,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:22,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:22,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 06:44:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:22,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 06:44:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:22,483 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 06:44:22,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:22,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895873074] [2022-07-23 06:44:22,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895873074] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:22,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:22,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:44:22,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768207211] [2022-07-23 06:44:22,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:22,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:44:22,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:22,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:44:22,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:22,485 INFO L87 Difference]: Start difference. First operand 395 states and 516 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:22,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:22,778 INFO L93 Difference]: Finished difference Result 415 states and 537 transitions. [2022-07-23 06:44:22,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:44:22,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2022-07-23 06:44:22,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:22,782 INFO L225 Difference]: With dead ends: 415 [2022-07-23 06:44:22,782 INFO L226 Difference]: Without dead ends: 396 [2022-07-23 06:44:22,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:44:22,782 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 148 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:22,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1379 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:44:22,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-07-23 06:44:22,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 390. [2022-07-23 06:44:22,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 344 states have (on average 1.2819767441860466) internal successors, (441), 351 states have internal predecessors, (441), 32 states have call successors, (32), 13 states have call predecessors, (32), 13 states have return successors, (37), 26 states have call predecessors, (37), 26 states have call successors, (37) [2022-07-23 06:44:22,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 510 transitions. [2022-07-23 06:44:22,788 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 510 transitions. Word has length 48 [2022-07-23 06:44:22,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:22,788 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 510 transitions. [2022-07-23 06:44:22,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:22,788 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 510 transitions. [2022-07-23 06:44:22,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-23 06:44:22,789 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:22,789 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 06:44:22,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-23 06:44:22,789 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:22,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:22,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1900155685, now seen corresponding path program 1 times [2022-07-23 06:44:22,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:22,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45076506] [2022-07-23 06:44:22,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:22,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:22,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:22,820 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 06:44:22,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:22,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45076506] [2022-07-23 06:44:22,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45076506] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:22,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:22,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 06:44:22,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172119031] [2022-07-23 06:44:22,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:22,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 06:44:22,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:22,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 06:44:22,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 06:44:22,821 INFO L87 Difference]: Start difference. First operand 390 states and 510 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:44:22,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:22,945 INFO L93 Difference]: Finished difference Result 475 states and 614 transitions. [2022-07-23 06:44:22,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 06:44:22,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-07-23 06:44:22,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:22,947 INFO L225 Difference]: With dead ends: 475 [2022-07-23 06:44:22,947 INFO L226 Difference]: Without dead ends: 475 [2022-07-23 06:44:22,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 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 06:44:22,948 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 189 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:22,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 849 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:22,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-07-23 06:44:22,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 443. [2022-07-23 06:44:22,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 392 states have (on average 1.280612244897959) internal successors, (502), 398 states have internal predecessors, (502), 34 states have call successors, (34), 15 states have call predecessors, (34), 16 states have return successors, (43), 30 states have call predecessors, (43), 29 states have call successors, (43) [2022-07-23 06:44:22,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 579 transitions. [2022-07-23 06:44:22,958 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 579 transitions. Word has length 49 [2022-07-23 06:44:22,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:22,959 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 579 transitions. [2022-07-23 06:44:22,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:44:22,959 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 579 transitions. [2022-07-23 06:44:22,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-23 06:44:22,960 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:22,960 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 06:44:22,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-23 06:44:22,960 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:22,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:22,961 INFO L85 PathProgramCache]: Analyzing trace with hash 785908469, now seen corresponding path program 1 times [2022-07-23 06:44:22,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:22,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549060883] [2022-07-23 06:44:22,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:22,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:22,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 06:44:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:22,996 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 06:44:22,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:22,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549060883] [2022-07-23 06:44:22,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549060883] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:22,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:22,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 06:44:22,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209946085] [2022-07-23 06:44:22,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:22,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 06:44:22,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:22,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 06:44:22,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 06:44:22,998 INFO L87 Difference]: Start difference. First operand 443 states and 579 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 06:44:23,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:23,141 INFO L93 Difference]: Finished difference Result 456 states and 595 transitions. [2022-07-23 06:44:23,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 06:44:23,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 48 [2022-07-23 06:44:23,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:23,143 INFO L225 Difference]: With dead ends: 456 [2022-07-23 06:44:23,143 INFO L226 Difference]: Without dead ends: 456 [2022-07-23 06:44:23,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 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 06:44:23,143 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 70 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:23,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1058 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:23,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-07-23 06:44:23,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 445. [2022-07-23 06:44:23,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 394 states have (on average 1.2791878172588833) internal successors, (504), 400 states have internal predecessors, (504), 34 states have call successors, (34), 15 states have call predecessors, (34), 16 states have return successors, (43), 30 states have call predecessors, (43), 29 states have call successors, (43) [2022-07-23 06:44:23,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 581 transitions. [2022-07-23 06:44:23,149 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 581 transitions. Word has length 48 [2022-07-23 06:44:23,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:23,150 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 581 transitions. [2022-07-23 06:44:23,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 06:44:23,150 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 581 transitions. [2022-07-23 06:44:23,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-23 06:44:23,150 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:23,151 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 06:44:23,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-23 06:44:23,151 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:23,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:23,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1427465013, now seen corresponding path program 1 times [2022-07-23 06:44:23,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:23,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078429675] [2022-07-23 06:44:23,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:23,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:23,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 06:44:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:23,195 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 06:44:23,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:23,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078429675] [2022-07-23 06:44:23,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078429675] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:23,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:23,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:44:23,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417958768] [2022-07-23 06:44:23,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:23,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:44:23,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:23,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:44:23,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:23,197 INFO L87 Difference]: Start difference. First operand 445 states and 581 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 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 06:44:23,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:23,406 INFO L93 Difference]: Finished difference Result 433 states and 564 transitions. [2022-07-23 06:44:23,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:44:23,406 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 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 48 [2022-07-23 06:44:23,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:23,408 INFO L225 Difference]: With dead ends: 433 [2022-07-23 06:44:23,408 INFO L226 Difference]: Without dead ends: 419 [2022-07-23 06:44:23,408 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 06:44:23,408 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 55 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:23,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 1786 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:23,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-07-23 06:44:23,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 417. [2022-07-23 06:44:23,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 369 states have (on average 1.2628726287262872) internal successors, (466), 373 states have internal predecessors, (466), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (41), 29 states have call predecessors, (41), 28 states have call successors, (41) [2022-07-23 06:44:23,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 539 transitions. [2022-07-23 06:44:23,417 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 539 transitions. Word has length 48 [2022-07-23 06:44:23,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:23,417 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 539 transitions. [2022-07-23 06:44:23,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 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 06:44:23,417 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 539 transitions. [2022-07-23 06:44:23,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-23 06:44:23,418 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:23,418 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] [2022-07-23 06:44:23,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-23 06:44:23,418 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:23,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:23,421 INFO L85 PathProgramCache]: Analyzing trace with hash 827652383, now seen corresponding path program 1 times [2022-07-23 06:44:23,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:23,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074596912] [2022-07-23 06:44:23,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:23,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:23,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 06:44:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:23,483 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 06:44:23,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:23,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074596912] [2022-07-23 06:44:23,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074596912] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:23,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:23,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:44:23,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964310119] [2022-07-23 06:44:23,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:23,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:44:23,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:23,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:44:23,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:23,486 INFO L87 Difference]: Start difference. First operand 417 states and 539 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:44:23,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:23,673 INFO L93 Difference]: Finished difference Result 446 states and 574 transitions. [2022-07-23 06:44:23,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:44:23,673 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-07-23 06:44:23,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:23,675 INFO L225 Difference]: With dead ends: 446 [2022-07-23 06:44:23,675 INFO L226 Difference]: Without dead ends: 446 [2022-07-23 06:44:23,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:44:23,675 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 81 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:23,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1620 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:23,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-07-23 06:44:23,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 417. [2022-07-23 06:44:23,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 369 states have (on average 1.2574525745257452) internal successors, (464), 373 states have internal predecessors, (464), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (41), 29 states have call predecessors, (41), 28 states have call successors, (41) [2022-07-23 06:44:23,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 537 transitions. [2022-07-23 06:44:23,681 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 537 transitions. Word has length 51 [2022-07-23 06:44:23,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:23,681 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 537 transitions. [2022-07-23 06:44:23,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:44:23,681 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 537 transitions. [2022-07-23 06:44:23,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-23 06:44:23,682 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:23,682 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] [2022-07-23 06:44:23,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-23 06:44:23,682 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:23,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:23,682 INFO L85 PathProgramCache]: Analyzing trace with hash 141980076, now seen corresponding path program 1 times [2022-07-23 06:44:23,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:23,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507828564] [2022-07-23 06:44:23,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:23,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:23,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 06:44:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:23,727 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 06:44:23,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:23,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507828564] [2022-07-23 06:44:23,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507828564] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:23,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:23,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 06:44:23,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290324029] [2022-07-23 06:44:23,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:23,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 06:44:23,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:23,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 06:44:23,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:44:23,729 INFO L87 Difference]: Start difference. First operand 417 states and 537 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 7 states have internal predecessors, (48), 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 06:44:23,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:23,973 INFO L93 Difference]: Finished difference Result 435 states and 556 transitions. [2022-07-23 06:44:23,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 06:44:23,974 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 7 states have internal predecessors, (48), 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 51 [2022-07-23 06:44:23,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:23,975 INFO L225 Difference]: With dead ends: 435 [2022-07-23 06:44:23,975 INFO L226 Difference]: Without dead ends: 419 [2022-07-23 06:44:23,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:44:23,976 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 82 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1833 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:23,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1833 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:23,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-07-23 06:44:23,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 413. [2022-07-23 06:44:23,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 366 states have (on average 1.2568306010928962) internal successors, (460), 370 states have internal predecessors, (460), 31 states have call successors, (31), 15 states have call predecessors, (31), 15 states have return successors, (40), 28 states have call predecessors, (40), 27 states have call successors, (40) [2022-07-23 06:44:23,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 531 transitions. [2022-07-23 06:44:23,981 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 531 transitions. Word has length 51 [2022-07-23 06:44:23,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:23,981 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 531 transitions. [2022-07-23 06:44:23,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 7 states have internal predecessors, (48), 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 06:44:23,981 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 531 transitions. [2022-07-23 06:44:23,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-23 06:44:23,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:23,981 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] [2022-07-23 06:44:23,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-23 06:44:23,982 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:23,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:23,982 INFO L85 PathProgramCache]: Analyzing trace with hash -646852178, now seen corresponding path program 1 times [2022-07-23 06:44:23,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:23,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660550649] [2022-07-23 06:44:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:23,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:24,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 06:44:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:24,026 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 06:44:24,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:24,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660550649] [2022-07-23 06:44:24,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660550649] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:24,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:24,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 06:44:24,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623783626] [2022-07-23 06:44:24,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:24,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 06:44:24,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:24,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 06:44:24,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:44:24,029 INFO L87 Difference]: Start difference. First operand 413 states and 531 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 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 06:44:24,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:24,284 INFO L93 Difference]: Finished difference Result 431 states and 550 transitions. [2022-07-23 06:44:24,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 06:44:24,285 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 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 52 [2022-07-23 06:44:24,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:24,286 INFO L225 Difference]: With dead ends: 431 [2022-07-23 06:44:24,286 INFO L226 Difference]: Without dead ends: 414 [2022-07-23 06:44:24,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:44:24,287 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 82 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1859 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:24,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1859 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:24,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-07-23 06:44:24,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 408. [2022-07-23 06:44:24,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 362 states have (on average 1.2569060773480663) internal successors, (455), 366 states have internal predecessors, (455), 30 states have call successors, (30), 15 states have call predecessors, (30), 15 states have return successors, (39), 27 states have call predecessors, (39), 26 states have call successors, (39) [2022-07-23 06:44:24,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 524 transitions. [2022-07-23 06:44:24,302 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 524 transitions. Word has length 52 [2022-07-23 06:44:24,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:24,302 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 524 transitions. [2022-07-23 06:44:24,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 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 06:44:24,303 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 524 transitions. [2022-07-23 06:44:24,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-23 06:44:24,305 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:24,305 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] [2022-07-23 06:44:24,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-23 06:44:24,305 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:24,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:24,306 INFO L85 PathProgramCache]: Analyzing trace with hash -403973580, now seen corresponding path program 1 times [2022-07-23 06:44:24,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:24,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486043204] [2022-07-23 06:44:24,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:24,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:24,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 06:44:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:24,358 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 06:44:24,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:24,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486043204] [2022-07-23 06:44:24,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486043204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:24,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:24,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 06:44:24,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947987599] [2022-07-23 06:44:24,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:24,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 06:44:24,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:24,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 06:44:24,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:44:24,362 INFO L87 Difference]: Start difference. First operand 408 states and 524 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 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 06:44:24,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:24,595 INFO L93 Difference]: Finished difference Result 426 states and 543 transitions. [2022-07-23 06:44:24,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 06:44:24,596 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 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 52 [2022-07-23 06:44:24,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:24,597 INFO L225 Difference]: With dead ends: 426 [2022-07-23 06:44:24,597 INFO L226 Difference]: Without dead ends: 410 [2022-07-23 06:44:24,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:44:24,597 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 82 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:24,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1749 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:24,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-07-23 06:44:24,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 404. [2022-07-23 06:44:24,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 359 states have (on average 1.256267409470752) internal successors, (451), 363 states have internal predecessors, (451), 29 states have call successors, (29), 15 states have call predecessors, (29), 15 states have return successors, (38), 26 states have call predecessors, (38), 25 states have call successors, (38) [2022-07-23 06:44:24,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 518 transitions. [2022-07-23 06:44:24,602 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 518 transitions. Word has length 52 [2022-07-23 06:44:24,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:24,602 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 518 transitions. [2022-07-23 06:44:24,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 7 states have internal predecessors, (49), 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 06:44:24,602 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 518 transitions. [2022-07-23 06:44:24,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-23 06:44:24,603 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:24,603 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] [2022-07-23 06:44:24,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-23 06:44:24,604 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:24,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:24,604 INFO L85 PathProgramCache]: Analyzing trace with hash 515113277, now seen corresponding path program 1 times [2022-07-23 06:44:24,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:24,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508670453] [2022-07-23 06:44:24,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:24,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:24,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-23 06:44:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:24,649 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 06:44:24,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:24,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508670453] [2022-07-23 06:44:24,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508670453] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:24,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:24,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:44:24,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597848315] [2022-07-23 06:44:24,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:24,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:44:24,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:24,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:44:24,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:24,651 INFO L87 Difference]: Start difference. First operand 404 states and 518 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 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 06:44:24,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:24,849 INFO L93 Difference]: Finished difference Result 418 states and 532 transitions. [2022-07-23 06:44:24,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:44:24,850 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 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 52 [2022-07-23 06:44:24,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:24,851 INFO L225 Difference]: With dead ends: 418 [2022-07-23 06:44:24,851 INFO L226 Difference]: Without dead ends: 388 [2022-07-23 06:44:24,851 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 06:44:24,853 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 72 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:24,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 1593 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:24,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-07-23 06:44:24,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 382. [2022-07-23 06:44:24,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 338 states have (on average 1.2603550295857988) internal successors, (426), 342 states have internal predecessors, (426), 28 states have call successors, (28), 15 states have call predecessors, (28), 15 states have return successors, (37), 25 states have call predecessors, (37), 24 states have call successors, (37) [2022-07-23 06:44:24,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 491 transitions. [2022-07-23 06:44:24,858 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 491 transitions. Word has length 52 [2022-07-23 06:44:24,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:24,859 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 491 transitions. [2022-07-23 06:44:24,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 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 06:44:24,859 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 491 transitions. [2022-07-23 06:44:24,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-23 06:44:24,860 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:24,860 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 06:44:24,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-23 06:44:24,860 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:24,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:24,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1195477270, now seen corresponding path program 1 times [2022-07-23 06:44:24,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:24,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735948071] [2022-07-23 06:44:24,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:24,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:24,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:24,912 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 06:44:24,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:24,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735948071] [2022-07-23 06:44:24,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735948071] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:24,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:24,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:44:24,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440669324] [2022-07-23 06:44:24,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:24,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:44:24,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:24,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:44:24,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:24,915 INFO L87 Difference]: Start difference. First operand 382 states and 491 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:44:25,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:25,103 INFO L93 Difference]: Finished difference Result 514 states and 678 transitions. [2022-07-23 06:44:25,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:44:25,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2022-07-23 06:44:25,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:25,105 INFO L225 Difference]: With dead ends: 514 [2022-07-23 06:44:25,105 INFO L226 Difference]: Without dead ends: 514 [2022-07-23 06:44:25,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:44:25,105 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 133 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:25,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1639 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:25,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-07-23 06:44:25,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 382. [2022-07-23 06:44:25,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 338 states have (on average 1.257396449704142) internal successors, (425), 342 states have internal predecessors, (425), 28 states have call successors, (28), 15 states have call predecessors, (28), 15 states have return successors, (37), 25 states have call predecessors, (37), 24 states have call successors, (37) [2022-07-23 06:44:25,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 490 transitions. [2022-07-23 06:44:25,112 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 490 transitions. Word has length 54 [2022-07-23 06:44:25,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:25,113 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 490 transitions. [2022-07-23 06:44:25,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 06:44:25,114 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 490 transitions. [2022-07-23 06:44:25,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-23 06:44:25,116 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:25,116 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] [2022-07-23 06:44:25,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-23 06:44:25,116 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:25,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:25,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1693203453, now seen corresponding path program 1 times [2022-07-23 06:44:25,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:25,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166059500] [2022-07-23 06:44:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:25,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:25,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 06:44:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:25,166 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 06:44:25,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:25,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166059500] [2022-07-23 06:44:25,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166059500] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:25,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:25,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 06:44:25,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733528384] [2022-07-23 06:44:25,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:25,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 06:44:25,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:25,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 06:44:25,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:44:25,169 INFO L87 Difference]: Start difference. First operand 382 states and 490 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 7 states have internal predecessors, (53), 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 06:44:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:25,400 INFO L93 Difference]: Finished difference Result 400 states and 509 transitions. [2022-07-23 06:44:25,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 06:44:25,400 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 7 states have internal predecessors, (53), 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 56 [2022-07-23 06:44:25,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:25,402 INFO L225 Difference]: With dead ends: 400 [2022-07-23 06:44:25,402 INFO L226 Difference]: Without dead ends: 366 [2022-07-23 06:44:25,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-23 06:44:25,402 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 90 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:25,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1547 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:25,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-07-23 06:44:25,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 360. [2022-07-23 06:44:25,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 319 states have (on average 1.2570532915360502) internal successors, (401), 323 states have internal predecessors, (401), 26 states have call successors, (26), 14 states have call predecessors, (26), 14 states have return successors, (35), 23 states have call predecessors, (35), 22 states have call successors, (35) [2022-07-23 06:44:25,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 462 transitions. [2022-07-23 06:44:25,408 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 462 transitions. Word has length 56 [2022-07-23 06:44:25,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:25,408 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 462 transitions. [2022-07-23 06:44:25,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 7 states have internal predecessors, (53), 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 06:44:25,408 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 462 transitions. [2022-07-23 06:44:25,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-23 06:44:25,409 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:25,409 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] [2022-07-23 06:44:25,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-23 06:44:25,409 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:25,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:25,410 INFO L85 PathProgramCache]: Analyzing trace with hash 835021725, now seen corresponding path program 1 times [2022-07-23 06:44:25,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:25,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387160948] [2022-07-23 06:44:25,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:25,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:25,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 06:44:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:25,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-23 06:44:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:25,464 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 06:44:25,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:25,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387160948] [2022-07-23 06:44:25,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387160948] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:25,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:25,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:44:25,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735553629] [2022-07-23 06:44:25,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:25,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:44:25,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:25,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:44:25,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:25,466 INFO L87 Difference]: Start difference. First operand 360 states and 462 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:25,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:25,636 INFO L93 Difference]: Finished difference Result 341 states and 429 transitions. [2022-07-23 06:44:25,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:44:25,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 62 [2022-07-23 06:44:25,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:25,637 INFO L225 Difference]: With dead ends: 341 [2022-07-23 06:44:25,637 INFO L226 Difference]: Without dead ends: 341 [2022-07-23 06:44:25,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:44:25,638 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 250 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:25,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 868 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:25,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-07-23 06:44:25,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 327. [2022-07-23 06:44:25,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 291 states have (on average 1.2577319587628866) internal successors, (366), 294 states have internal predecessors, (366), 23 states have call successors, (23), 13 states have call predecessors, (23), 12 states have return successors, (23), 20 states have call predecessors, (23), 20 states have call successors, (23) [2022-07-23 06:44:25,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 412 transitions. [2022-07-23 06:44:25,642 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 412 transitions. Word has length 62 [2022-07-23 06:44:25,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:25,642 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 412 transitions. [2022-07-23 06:44:25,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:25,643 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 412 transitions. [2022-07-23 06:44:25,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-23 06:44:25,643 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:25,644 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] [2022-07-23 06:44:25,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-23 06:44:25,644 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:25,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:25,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1659041663, now seen corresponding path program 1 times [2022-07-23 06:44:25,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:25,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241825562] [2022-07-23 06:44:25,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:25,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:25,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 06:44:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:25,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-23 06:44:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:25,702 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 06:44:25,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:25,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241825562] [2022-07-23 06:44:25,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241825562] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:25,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:25,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 06:44:25,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539656702] [2022-07-23 06:44:25,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:25,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 06:44:25,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:25,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 06:44:25,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:44:25,704 INFO L87 Difference]: Start difference. First operand 327 states and 412 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:25,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:25,954 INFO L93 Difference]: Finished difference Result 371 states and 466 transitions. [2022-07-23 06:44:25,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 06:44:25,954 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 66 [2022-07-23 06:44:25,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:25,955 INFO L225 Difference]: With dead ends: 371 [2022-07-23 06:44:25,956 INFO L226 Difference]: Without dead ends: 355 [2022-07-23 06:44:25,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-07-23 06:44:25,956 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 352 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:25,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1314 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:25,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-07-23 06:44:25,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 335. [2022-07-23 06:44:25,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 298 states have (on average 1.2516778523489933) internal successors, (373), 301 states have internal predecessors, (373), 23 states have call successors, (23), 13 states have call predecessors, (23), 13 states have return successors, (26), 21 states have call predecessors, (26), 20 states have call successors, (26) [2022-07-23 06:44:25,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 422 transitions. [2022-07-23 06:44:25,960 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 422 transitions. Word has length 66 [2022-07-23 06:44:25,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:25,961 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 422 transitions. [2022-07-23 06:44:25,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:25,961 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 422 transitions. [2022-07-23 06:44:25,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-23 06:44:25,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:25,962 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 06:44:25,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-23 06:44:25,962 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:25,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:25,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1959206108, now seen corresponding path program 1 times [2022-07-23 06:44:25,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:25,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94723783] [2022-07-23 06:44:25,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:25,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:25,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 06:44:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:25,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 06:44:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:26,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-23 06:44:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:26,005 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 06:44:26,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:26,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94723783] [2022-07-23 06:44:26,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94723783] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:26,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:26,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 06:44:26,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472830986] [2022-07-23 06:44:26,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:26,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 06:44:26,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:26,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 06:44:26,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:26,006 INFO L87 Difference]: Start difference. First operand 335 states and 422 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:26,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:26,336 INFO L93 Difference]: Finished difference Result 454 states and 552 transitions. [2022-07-23 06:44:26,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:44:26,338 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 68 [2022-07-23 06:44:26,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:26,346 INFO L225 Difference]: With dead ends: 454 [2022-07-23 06:44:26,346 INFO L226 Difference]: Without dead ends: 454 [2022-07-23 06:44:26,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:44:26,346 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 485 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:26,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 1216 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:44:26,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-07-23 06:44:26,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 429. [2022-07-23 06:44:26,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 382 states have (on average 1.2408376963350785) internal successors, (474), 387 states have internal predecessors, (474), 25 states have call successors, (25), 19 states have call predecessors, (25), 21 states have return successors, (28), 23 states have call predecessors, (28), 22 states have call successors, (28) [2022-07-23 06:44:26,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 527 transitions. [2022-07-23 06:44:26,352 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 527 transitions. Word has length 68 [2022-07-23 06:44:26,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:26,353 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 527 transitions. [2022-07-23 06:44:26,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:26,353 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 527 transitions. [2022-07-23 06:44:26,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-23 06:44:26,354 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:26,354 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] [2022-07-23 06:44:26,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-23 06:44:26,354 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:26,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:26,355 INFO L85 PathProgramCache]: Analyzing trace with hash 377679953, now seen corresponding path program 1 times [2022-07-23 06:44:26,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:26,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025465379] [2022-07-23 06:44:26,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:26,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:26,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 06:44:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:26,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-23 06:44:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:26,421 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 06:44:26,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:26,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025465379] [2022-07-23 06:44:26,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025465379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:26,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:26,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 06:44:26,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748654355] [2022-07-23 06:44:26,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:26,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 06:44:26,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:26,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 06:44:26,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:44:26,423 INFO L87 Difference]: Start difference. First operand 429 states and 527 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:26,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:26,657 INFO L93 Difference]: Finished difference Result 459 states and 559 transitions. [2022-07-23 06:44:26,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 06:44:26,657 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 67 [2022-07-23 06:44:26,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:26,659 INFO L225 Difference]: With dead ends: 459 [2022-07-23 06:44:26,659 INFO L226 Difference]: Without dead ends: 443 [2022-07-23 06:44:26,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:44:26,659 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 152 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:26,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1563 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:26,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-07-23 06:44:26,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 421. [2022-07-23 06:44:26,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 375 states have (on average 1.2426666666666666) internal successors, (466), 380 states have internal predecessors, (466), 25 states have call successors, (25), 19 states have call predecessors, (25), 20 states have return successors, (26), 22 states have call predecessors, (26), 22 states have call successors, (26) [2022-07-23 06:44:26,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 517 transitions. [2022-07-23 06:44:26,667 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 517 transitions. Word has length 67 [2022-07-23 06:44:26,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:26,667 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 517 transitions. [2022-07-23 06:44:26,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:26,667 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 517 transitions. [2022-07-23 06:44:26,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-23 06:44:26,668 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:26,668 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] [2022-07-23 06:44:26,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-23 06:44:26,668 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:26,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:26,669 INFO L85 PathProgramCache]: Analyzing trace with hash -2019693577, now seen corresponding path program 1 times [2022-07-23 06:44:26,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:26,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772961457] [2022-07-23 06:44:26,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:26,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:26,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 06:44:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:26,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 06:44:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:26,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-23 06:44:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:26,728 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 06:44:26,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:26,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772961457] [2022-07-23 06:44:26,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772961457] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:26,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:26,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 06:44:26,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257562664] [2022-07-23 06:44:26,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:26,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 06:44:26,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:26,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 06:44:26,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:44:26,730 INFO L87 Difference]: Start difference. First operand 421 states and 517 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 06:44:27,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:27,098 INFO L93 Difference]: Finished difference Result 420 states and 515 transitions. [2022-07-23 06:44:27,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 06:44:27,099 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 69 [2022-07-23 06:44:27,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:27,100 INFO L225 Difference]: With dead ends: 420 [2022-07-23 06:44:27,100 INFO L226 Difference]: Without dead ends: 346 [2022-07-23 06:44:27,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2022-07-23 06:44:27,100 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 193 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:27,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1384 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 06:44:27,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-07-23 06:44:27,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2022-07-23 06:44:27,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 307 states have (on average 1.247557003257329) internal successors, (383), 311 states have internal predecessors, (383), 21 states have call successors, (21), 16 states have call predecessors, (21), 17 states have return successors, (23), 19 states have call predecessors, (23), 19 states have call successors, (23) [2022-07-23 06:44:27,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 427 transitions. [2022-07-23 06:44:27,105 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 427 transitions. Word has length 69 [2022-07-23 06:44:27,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:27,105 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 427 transitions. [2022-07-23 06:44:27,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 06:44:27,105 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 427 transitions. [2022-07-23 06:44:27,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-23 06:44:27,106 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:27,106 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] [2022-07-23 06:44:27,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-23 06:44:27,106 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:27,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:27,107 INFO L85 PathProgramCache]: Analyzing trace with hash 2013543144, now seen corresponding path program 1 times [2022-07-23 06:44:27,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:27,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196336292] [2022-07-23 06:44:27,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:27,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-23 06:44:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,157 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 06:44:27,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:27,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196336292] [2022-07-23 06:44:27,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196336292] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:27,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:27,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 06:44:27,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096385168] [2022-07-23 06:44:27,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:27,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 06:44:27,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:27,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 06:44:27,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:44:27,159 INFO L87 Difference]: Start difference. First operand 346 states and 427 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:27,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:27,300 INFO L93 Difference]: Finished difference Result 398 states and 491 transitions. [2022-07-23 06:44:27,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 06:44:27,301 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 71 [2022-07-23 06:44:27,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:27,302 INFO L225 Difference]: With dead ends: 398 [2022-07-23 06:44:27,302 INFO L226 Difference]: Without dead ends: 373 [2022-07-23 06:44:27,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-07-23 06:44:27,302 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 106 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:27,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1087 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:27,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-07-23 06:44:27,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 357. [2022-07-23 06:44:27,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 317 states have (on average 1.22397476340694) internal successors, (388), 322 states have internal predecessors, (388), 22 states have call successors, (22), 16 states have call predecessors, (22), 17 states have return successors, (23), 19 states have call predecessors, (23), 19 states have call successors, (23) [2022-07-23 06:44:27,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 433 transitions. [2022-07-23 06:44:27,307 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 433 transitions. Word has length 71 [2022-07-23 06:44:27,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:27,307 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 433 transitions. [2022-07-23 06:44:27,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:27,307 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 433 transitions. [2022-07-23 06:44:27,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-23 06:44:27,308 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:27,308 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-23 06:44:27,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-23 06:44:27,309 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:27,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:27,309 INFO L85 PathProgramCache]: Analyzing trace with hash -291513568, now seen corresponding path program 1 times [2022-07-23 06:44:27,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:27,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523312229] [2022-07-23 06:44:27,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:27,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-23 06:44:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,358 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 06:44:27,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:27,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523312229] [2022-07-23 06:44:27,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523312229] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:27,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:27,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 06:44:27,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103017290] [2022-07-23 06:44:27,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:27,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 06:44:27,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:27,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 06:44:27,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:27,360 INFO L87 Difference]: Start difference. First operand 357 states and 433 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:44:27,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:27,455 INFO L93 Difference]: Finished difference Result 392 states and 476 transitions. [2022-07-23 06:44:27,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 06:44:27,456 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 74 [2022-07-23 06:44:27,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:27,457 INFO L225 Difference]: With dead ends: 392 [2022-07-23 06:44:27,457 INFO L226 Difference]: Without dead ends: 392 [2022-07-23 06:44:27,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:27,457 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 77 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:27,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 1208 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:27,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-07-23 06:44:27,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 265. [2022-07-23 06:44:27,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 234 states have (on average 1.1794871794871795) internal successors, (276), 238 states have internal predecessors, (276), 16 states have call successors, (16), 12 states have call predecessors, (16), 14 states have return successors, (19), 15 states have call predecessors, (19), 15 states have call successors, (19) [2022-07-23 06:44:27,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 311 transitions. [2022-07-23 06:44:27,461 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 311 transitions. Word has length 74 [2022-07-23 06:44:27,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:27,461 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 311 transitions. [2022-07-23 06:44:27,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 06:44:27,462 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 311 transitions. [2022-07-23 06:44:27,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-23 06:44:27,462 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:27,462 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] [2022-07-23 06:44:27,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-23 06:44:27,463 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:27,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:27,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1369005511, now seen corresponding path program 1 times [2022-07-23 06:44:27,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:27,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371187623] [2022-07-23 06:44:27,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:27,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:27,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-23 06:44:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-23 06:44:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 06:44:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,518 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 06:44:27,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:27,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371187623] [2022-07-23 06:44:27,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371187623] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:27,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:27,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 06:44:27,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036370816] [2022-07-23 06:44:27,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:27,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 06:44:27,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:27,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 06:44:27,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:44:27,520 INFO L87 Difference]: Start difference. First operand 265 states and 311 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:27,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:27,748 INFO L93 Difference]: Finished difference Result 494 states and 579 transitions. [2022-07-23 06:44:27,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 06:44:27,749 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 77 [2022-07-23 06:44:27,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:27,750 INFO L225 Difference]: With dead ends: 494 [2022-07-23 06:44:27,750 INFO L226 Difference]: Without dead ends: 444 [2022-07-23 06:44:27,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-07-23 06:44:27,751 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 370 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:27,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 1259 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:27,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-07-23 06:44:27,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 191. [2022-07-23 06:44:27,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 171 states have (on average 1.1578947368421053) internal successors, (198), 173 states have internal predecessors, (198), 9 states have call successors, (9), 9 states have call predecessors, (9), 10 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-07-23 06:44:27,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 217 transitions. [2022-07-23 06:44:27,754 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 217 transitions. Word has length 77 [2022-07-23 06:44:27,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:27,755 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 217 transitions. [2022-07-23 06:44:27,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:27,755 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 217 transitions. [2022-07-23 06:44:27,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-23 06:44:27,756 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:27,756 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 06:44:27,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-23 06:44:27,756 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:27,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:27,756 INFO L85 PathProgramCache]: Analyzing trace with hash 586260984, now seen corresponding path program 1 times [2022-07-23 06:44:27,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:27,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658156408] [2022-07-23 06:44:27,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:27,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:27,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-23 06:44:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,791 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 06:44:27,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:27,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658156408] [2022-07-23 06:44:27,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658156408] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:27,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:27,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:44:27,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746874957] [2022-07-23 06:44:27,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:27,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:44:27,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:27,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:44:27,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:44:27,793 INFO L87 Difference]: Start difference. First operand 191 states and 217 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:27,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:27,869 INFO L93 Difference]: Finished difference Result 199 states and 225 transitions. [2022-07-23 06:44:27,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 06:44:27,869 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 83 [2022-07-23 06:44:27,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:27,870 INFO L225 Difference]: With dead ends: 199 [2022-07-23 06:44:27,870 INFO L226 Difference]: Without dead ends: 197 [2022-07-23 06:44:27,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:27,871 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 25 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:27,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 605 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:27,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-07-23 06:44:27,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 191. [2022-07-23 06:44:27,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 171 states have (on average 1.152046783625731) internal successors, (197), 173 states have internal predecessors, (197), 9 states have call successors, (9), 9 states have call predecessors, (9), 10 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-07-23 06:44:27,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 216 transitions. [2022-07-23 06:44:27,874 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 216 transitions. Word has length 83 [2022-07-23 06:44:27,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:27,874 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 216 transitions. [2022-07-23 06:44:27,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 06:44:27,875 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 216 transitions. [2022-07-23 06:44:27,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-23 06:44:27,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:27,876 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:27,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-23 06:44:27,876 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:27,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:27,876 INFO L85 PathProgramCache]: Analyzing trace with hash 727590310, now seen corresponding path program 1 times [2022-07-23 06:44:27,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:27,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242215474] [2022-07-23 06:44:27,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:27,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-23 06:44:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 06:44:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:27,921 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-23 06:44:27,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:27,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242215474] [2022-07-23 06:44:27,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242215474] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:27,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:27,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:44:27,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834738061] [2022-07-23 06:44:27,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:27,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:44:27,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:27,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:44:27,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:44:27,923 INFO L87 Difference]: Start difference. First operand 191 states and 216 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:27,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:27,978 INFO L93 Difference]: Finished difference Result 221 states and 250 transitions. [2022-07-23 06:44:27,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 06:44:27,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 103 [2022-07-23 06:44:27,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:27,979 INFO L225 Difference]: With dead ends: 221 [2022-07-23 06:44:27,979 INFO L226 Difference]: Without dead ends: 221 [2022-07-23 06:44:27,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-23 06:44:27,979 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 67 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:27,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 570 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 06:44:27,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-07-23 06:44:27,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 193. [2022-07-23 06:44:27,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 173 states have (on average 1.1502890173410405) internal successors, (199), 175 states have internal predecessors, (199), 9 states have call successors, (9), 9 states have call predecessors, (9), 10 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-07-23 06:44:27,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 218 transitions. [2022-07-23 06:44:27,982 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 218 transitions. Word has length 103 [2022-07-23 06:44:27,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:27,982 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 218 transitions. [2022-07-23 06:44:27,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:27,983 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 218 transitions. [2022-07-23 06:44:27,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-23 06:44:27,983 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:27,984 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:27,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-23 06:44:27,984 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:27,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:27,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1604320614, now seen corresponding path program 1 times [2022-07-23 06:44:27,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:27,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38403119] [2022-07-23 06:44:27,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:27,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:28,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:28,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-23 06:44:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:28,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 06:44:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:28,046 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-23 06:44:28,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:28,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38403119] [2022-07-23 06:44:28,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38403119] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:28,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:28,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 06:44:28,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844341178] [2022-07-23 06:44:28,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:28,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 06:44:28,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:28,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 06:44:28,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-23 06:44:28,048 INFO L87 Difference]: Start difference. First operand 193 states and 218 transitions. Second operand has 10 states, 10 states have (on average 8.1) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:28,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:28,207 INFO L93 Difference]: Finished difference Result 230 states and 261 transitions. [2022-07-23 06:44:28,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 06:44:28,208 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 103 [2022-07-23 06:44:28,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:28,209 INFO L225 Difference]: With dead ends: 230 [2022-07-23 06:44:28,209 INFO L226 Difference]: Without dead ends: 197 [2022-07-23 06:44:28,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2022-07-23 06:44:28,209 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 303 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:28,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 831 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:28,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-07-23 06:44:28,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 191. [2022-07-23 06:44:28,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 171 states have (on average 1.1403508771929824) internal successors, (195), 173 states have internal predecessors, (195), 9 states have call successors, (9), 9 states have call predecessors, (9), 10 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-07-23 06:44:28,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 214 transitions. [2022-07-23 06:44:28,211 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 214 transitions. Word has length 103 [2022-07-23 06:44:28,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:28,212 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 214 transitions. [2022-07-23 06:44:28,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:28,212 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 214 transitions. [2022-07-23 06:44:28,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-23 06:44:28,212 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:28,212 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:28,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-23 06:44:28,213 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:28,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:28,213 INFO L85 PathProgramCache]: Analyzing trace with hash -247821256, now seen corresponding path program 1 times [2022-07-23 06:44:28,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:28,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453670452] [2022-07-23 06:44:28,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:28,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:28,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:28,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-23 06:44:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:28,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-23 06:44:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:28,342 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-23 06:44:28,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:28,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453670452] [2022-07-23 06:44:28,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453670452] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:28,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:28,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-23 06:44:28,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304722041] [2022-07-23 06:44:28,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:28,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 06:44:28,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:28,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 06:44:28,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:44:28,344 INFO L87 Difference]: Start difference. First operand 191 states and 214 transitions. Second operand has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 11 states have internal predecessors, (88), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:28,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:28,649 INFO L93 Difference]: Finished difference Result 296 states and 340 transitions. [2022-07-23 06:44:28,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-23 06:44:28,649 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 11 states have internal predecessors, (88), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 104 [2022-07-23 06:44:28,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:28,650 INFO L225 Difference]: With dead ends: 296 [2022-07-23 06:44:28,650 INFO L226 Difference]: Without dead ends: 265 [2022-07-23 06:44:28,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=444, Unknown=0, NotChecked=0, Total=552 [2022-07-23 06:44:28,650 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 459 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:28,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1533 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:28,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-07-23 06:44:28,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 206. [2022-07-23 06:44:28,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 185 states have (on average 1.145945945945946) internal successors, (212), 187 states have internal predecessors, (212), 9 states have call successors, (9), 9 states have call predecessors, (9), 11 states have return successors, (11), 9 states have call predecessors, (11), 8 states have call successors, (11) [2022-07-23 06:44:28,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 232 transitions. [2022-07-23 06:44:28,654 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 232 transitions. Word has length 104 [2022-07-23 06:44:28,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:28,654 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 232 transitions. [2022-07-23 06:44:28,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 11 states have internal predecessors, (88), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:28,654 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 232 transitions. [2022-07-23 06:44:28,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-23 06:44:28,655 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:28,655 INFO L195 NwaCegarLoop]: trace histogram [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, 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 06:44:28,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-23 06:44:28,655 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:28,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:28,656 INFO L85 PathProgramCache]: Analyzing trace with hash -2004323598, now seen corresponding path program 1 times [2022-07-23 06:44:28,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:28,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401471255] [2022-07-23 06:44:28,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:28,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:28,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:28,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-23 06:44:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:28,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 06:44:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:28,752 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 06:44:28,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:28,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401471255] [2022-07-23 06:44:28,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401471255] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:28,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:28,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-23 06:44:28,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8519775] [2022-07-23 06:44:28,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:28,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 06:44:28,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:28,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 06:44:28,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-07-23 06:44:28,754 INFO L87 Difference]: Start difference. First operand 206 states and 232 transitions. Second operand has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 11 states have internal predecessors, (90), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:28,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:28,921 INFO L93 Difference]: Finished difference Result 223 states and 251 transitions. [2022-07-23 06:44:28,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 06:44:28,921 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 11 states have internal predecessors, (90), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 105 [2022-07-23 06:44:28,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:28,922 INFO L225 Difference]: With dead ends: 223 [2022-07-23 06:44:28,922 INFO L226 Difference]: Without dead ends: 220 [2022-07-23 06:44:28,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-07-23 06:44:28,922 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 30 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:28,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 1686 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:28,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-07-23 06:44:28,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 206. [2022-07-23 06:44:28,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 185 states have (on average 1.1405405405405404) internal successors, (211), 187 states have internal predecessors, (211), 9 states have call successors, (9), 9 states have call predecessors, (9), 11 states have return successors, (11), 9 states have call predecessors, (11), 8 states have call successors, (11) [2022-07-23 06:44:28,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 231 transitions. [2022-07-23 06:44:28,925 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 231 transitions. Word has length 105 [2022-07-23 06:44:28,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:28,925 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 231 transitions. [2022-07-23 06:44:28,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 11 states have internal predecessors, (90), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:28,925 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 231 transitions. [2022-07-23 06:44:28,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-23 06:44:28,926 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:28,926 INFO L195 NwaCegarLoop]: trace histogram [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, 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 06:44:28,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-23 06:44:28,927 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:28,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:28,927 INFO L85 PathProgramCache]: Analyzing trace with hash -629299870, now seen corresponding path program 1 times [2022-07-23 06:44:28,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:28,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15430498] [2022-07-23 06:44:28,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:28,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:28,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:28,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-23 06:44:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:28,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-23 06:44:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:28,975 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-23 06:44:28,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:28,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15430498] [2022-07-23 06:44:28,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15430498] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:28,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:28,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 06:44:28,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526026002] [2022-07-23 06:44:28,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:28,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 06:44:28,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:28,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 06:44:28,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 06:44:28,977 INFO L87 Difference]: Start difference. First operand 206 states and 231 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:29,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:29,045 INFO L93 Difference]: Finished difference Result 207 states and 229 transitions. [2022-07-23 06:44:29,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 06:44:29,045 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 108 [2022-07-23 06:44:29,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:29,046 INFO L225 Difference]: With dead ends: 207 [2022-07-23 06:44:29,046 INFO L226 Difference]: Without dead ends: 198 [2022-07-23 06:44:29,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-07-23 06:44:29,046 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 149 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:29,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 384 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:29,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-07-23 06:44:29,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 184. [2022-07-23 06:44:29,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 164 states have (on average 1.1219512195121952) internal successors, (184), 166 states have internal predecessors, (184), 9 states have call successors, (9), 9 states have call predecessors, (9), 10 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-07-23 06:44:29,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 203 transitions. [2022-07-23 06:44:29,049 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 203 transitions. Word has length 108 [2022-07-23 06:44:29,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:29,050 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 203 transitions. [2022-07-23 06:44:29,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 06:44:29,050 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 203 transitions. [2022-07-23 06:44:29,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-23 06:44:29,051 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:29,051 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 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 06:44:29,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-23 06:44:29,051 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:29,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:29,052 INFO L85 PathProgramCache]: Analyzing trace with hash 809951383, now seen corresponding path program 1 times [2022-07-23 06:44:29,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:29,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379684151] [2022-07-23 06:44:29,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:29,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:29,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:29,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-23 06:44:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:29,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-23 06:44:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:29,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-23 06:44:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:29,113 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-23 06:44:29,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:29,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379684151] [2022-07-23 06:44:29,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379684151] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:29,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:29,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 06:44:29,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874630828] [2022-07-23 06:44:29,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:29,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 06:44:29,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:29,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 06:44:29,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:44:29,115 INFO L87 Difference]: Start difference. First operand 184 states and 203 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 06:44:29,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:29,190 INFO L93 Difference]: Finished difference Result 173 states and 189 transitions. [2022-07-23 06:44:29,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 06:44:29,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 114 [2022-07-23 06:44:29,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:29,191 INFO L225 Difference]: With dead ends: 173 [2022-07-23 06:44:29,191 INFO L226 Difference]: Without dead ends: 163 [2022-07-23 06:44:29,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-07-23 06:44:29,192 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 66 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:29,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 668 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:29,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-07-23 06:44:29,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-07-23 06:44:29,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 146 states have (on average 1.1095890410958904) internal successors, (162), 147 states have internal predecessors, (162), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2022-07-23 06:44:29,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 178 transitions. [2022-07-23 06:44:29,194 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 178 transitions. Word has length 114 [2022-07-23 06:44:29,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:29,195 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 178 transitions. [2022-07-23 06:44:29,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 06:44:29,195 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 178 transitions. [2022-07-23 06:44:29,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-23 06:44:29,195 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:29,196 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:44:29,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-07-23 06:44:29,196 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:29,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:29,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1384297966, now seen corresponding path program 1 times [2022-07-23 06:44:29,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:29,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253230826] [2022-07-23 06:44:29,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:29,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:29,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:29,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-23 06:44:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:29,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-23 06:44:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:29,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-23 06:44:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:29,265 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-23 06:44:29,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:29,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253230826] [2022-07-23 06:44:29,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253230826] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:29,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:29,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 06:44:29,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38536410] [2022-07-23 06:44:29,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:29,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 06:44:29,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:29,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 06:44:29,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-23 06:44:29,267 INFO L87 Difference]: Start difference. First operand 163 states and 178 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 06:44:29,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:29,429 INFO L93 Difference]: Finished difference Result 284 states and 309 transitions. [2022-07-23 06:44:29,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 06:44:29,430 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 115 [2022-07-23 06:44:29,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:29,430 INFO L225 Difference]: With dead ends: 284 [2022-07-23 06:44:29,430 INFO L226 Difference]: Without dead ends: 163 [2022-07-23 06:44:29,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2022-07-23 06:44:29,431 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 130 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:29,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 902 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 06:44:29,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-07-23 06:44:29,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-07-23 06:44:29,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 146 states have (on average 1.1027397260273972) internal successors, (161), 147 states have internal predecessors, (161), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2022-07-23 06:44:29,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 177 transitions. [2022-07-23 06:44:29,433 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 177 transitions. Word has length 115 [2022-07-23 06:44:29,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:29,434 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 177 transitions. [2022-07-23 06:44:29,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 06:44:29,434 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 177 transitions. [2022-07-23 06:44:29,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-23 06:44:29,434 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 06:44:29,434 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:44:29,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-07-23 06:44:29,435 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-23 06:44:29,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 06:44:29,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1263306388, now seen corresponding path program 1 times [2022-07-23 06:44:29,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 06:44:29,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744876433] [2022-07-23 06:44:29,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 06:44:29,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 06:44:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:29,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 06:44:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:29,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-23 06:44:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:29,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-23 06:44:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:29,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-23 06:44:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 06:44:29,524 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-23 06:44:29,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 06:44:29,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744876433] [2022-07-23 06:44:29,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744876433] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 06:44:29,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 06:44:29,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-23 06:44:29,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037717560] [2022-07-23 06:44:29,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 06:44:29,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-23 06:44:29,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 06:44:29,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 06:44:29,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-07-23 06:44:29,526 INFO L87 Difference]: Start difference. First operand 163 states and 177 transitions. Second operand has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 10 states have internal predecessors, (94), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 06:44:29,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 06:44:29,793 INFO L93 Difference]: Finished difference Result 173 states and 190 transitions. [2022-07-23 06:44:29,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-23 06:44:29,794 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 10 states have internal predecessors, (94), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 115 [2022-07-23 06:44:29,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 06:44:29,794 INFO L225 Difference]: With dead ends: 173 [2022-07-23 06:44:29,794 INFO L226 Difference]: Without dead ends: 0 [2022-07-23 06:44:29,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2022-07-23 06:44:29,794 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 379 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 06:44:29,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 817 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 06:44:29,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-23 06:44:29,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-23 06:44:29,795 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 06:44:29,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-23 06:44:29,795 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 115 [2022-07-23 06:44:29,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 06:44:29,795 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 06:44:29,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 10 states have internal predecessors, (94), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 06:44:29,795 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-23 06:44:29,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-23 06:44:29,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-07-23 06:44:29,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-07-23 06:44:29,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-07-23 06:44:29,800 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 06:44:29,801 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-23 06:44:29,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 06:44:29 BoogieIcfgContainer [2022-07-23 06:44:29,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-23 06:44:29,804 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 06:44:29,804 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 06:44:29,804 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 06:44:29,804 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:44:14" (3/4) ... [2022-07-23 06:44:29,806 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-23 06:44:29,810 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KeWaitForSingleObject [2022-07-23 06:44:29,810 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IoSetDeviceInterfaceState [2022-07-23 06:44:29,810 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCompleteRequest [2022-07-23 06:44:29,810 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure errorFn [2022-07-23 06:44:29,811 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCallDriver [2022-07-23 06:44:29,811 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure FlQueueIrpToThread [2022-07-23 06:44:29,811 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure FloppyCreateClose [2022-07-23 06:44:29,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 68 nodes and edges [2022-07-23 06:44:29,825 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-07-23 06:44:29,826 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-07-23 06:44:29,827 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-23 06:44:29,902 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 06:44:29,903 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 06:44:29,903 INFO L158 Benchmark]: Toolchain (without parser) took 17044.82ms. Allocated memory was 81.8MB in the beginning and 243.3MB in the end (delta: 161.5MB). Free memory was 42.8MB in the beginning and 185.2MB in the end (delta: -142.5MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2022-07-23 06:44:29,903 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 81.8MB. Free memory is still 60.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 06:44:29,903 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.62ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 42.5MB in the beginning and 67.7MB in the end (delta: -25.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-23 06:44:29,903 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.26ms. Allocated memory is still 104.9MB. Free memory was 67.7MB in the beginning and 61.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-23 06:44:29,904 INFO L158 Benchmark]: Boogie Preprocessor took 42.00ms. Allocated memory is still 104.9MB. Free memory was 61.5MB in the beginning and 57.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-23 06:44:29,904 INFO L158 Benchmark]: RCFGBuilder took 933.64ms. Allocated memory is still 104.9MB. Free memory was 57.3MB in the beginning and 76.6MB in the end (delta: -19.3MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2022-07-23 06:44:29,904 INFO L158 Benchmark]: TraceAbstraction took 15566.15ms. Allocated memory was 104.9MB in the beginning and 243.3MB in the end (delta: 138.4MB). Free memory was 75.9MB in the beginning and 204.1MB in the end (delta: -128.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-23 06:44:29,904 INFO L158 Benchmark]: Witness Printer took 98.89ms. Allocated memory is still 243.3MB. Free memory was 204.1MB in the beginning and 185.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-23 06:44:29,905 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 81.8MB. Free memory is still 60.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.62ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 42.5MB in the beginning and 67.7MB in the end (delta: -25.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.26ms. Allocated memory is still 104.9MB. Free memory was 67.7MB in the beginning and 61.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.00ms. Allocated memory is still 104.9MB. Free memory was 61.5MB in the beginning and 57.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 933.64ms. Allocated memory is still 104.9MB. Free memory was 57.3MB in the beginning and 76.6MB in the end (delta: -19.3MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. * TraceAbstraction took 15566.15ms. Allocated memory was 104.9MB in the beginning and 243.3MB in the end (delta: 138.4MB). Free memory was 75.9MB in the beginning and 204.1MB in the end (delta: -128.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 98.89ms. Allocated memory is still 243.3MB. Free memory was 204.1MB in the beginning and 185.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. 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: 1627]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 667]: 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 8 procedures, 319 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 15.5s, OverallIterations: 61, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14076 SdHoareTripleChecker+Valid, 9.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13763 mSDsluCounter, 74282 SdHoareTripleChecker+Invalid, 7.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53738 mSDsCounter, 2229 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18592 IncrementalHoareTripleChecker+Invalid, 20821 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2229 mSolverCounterUnsat, 20544 mSDtfsCounter, 18592 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 730 GetRequests, 267 SyntacticMatches, 1 SemanticMatches, 462 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=707occurred in iteration=21, InterpolantAutomatonStates: 454, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 61 MinimizatonAttempts, 1608 StatesRemovedByMinimization, 55 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 3167 NumberOfCodeBlocks, 3167 NumberOfCodeBlocksAsserted, 61 NumberOfCheckSat, 3106 ConstructedInterpolants, 0 QuantifiedInterpolants, 6999 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 61 InterpolantComputations, 61 PerfectInterpolantSequences, 140/140 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 06:44:29,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE