./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4049ea6d-2efe-48d4-9197-35d84109eb47/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4049ea6d-2efe-48d4-9197-35d84109eb47/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4049ea6d-2efe-48d4-9197-35d84109eb47/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4049ea6d-2efe-48d4-9197-35d84109eb47/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4049ea6d-2efe-48d4-9197-35d84109eb47/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4049ea6d-2efe-48d4-9197-35d84109eb47/bin/uautomizer --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 3e0d5536f9cd1f3a5d711f95a0369e25308fe790 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:08:34,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:08:34,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:08:35,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:08:35,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:08:35,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:08:35,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:08:35,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:08:35,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:08:35,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:08:35,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:08:35,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:08:35,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:08:35,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:08:35,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:08:35,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:08:35,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:08:35,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:08:35,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:08:35,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:08:35,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:08:35,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:08:35,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:08:35,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:08:35,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:08:35,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:08:35,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:08:35,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:08:35,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:08:35,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:08:35,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:08:35,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:08:35,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:08:35,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:08:35,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:08:35,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:08:35,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:08:35,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:08:35,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:08:35,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:08:35,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:08:35,109 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4049ea6d-2efe-48d4-9197-35d84109eb47/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-28 03:08:35,140 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:08:35,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:08:35,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:08:35,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:08:35,143 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:08:35,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:08:35,143 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:08:35,143 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:08:35,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:08:35,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:08:35,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:08:35,144 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:08:35,144 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:08:35,145 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:08:35,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:08:35,145 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:08:35,145 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:08:35,146 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:08:35,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:08:35,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:08:35,146 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:08:35,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:08:35,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:08:35,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:08:35,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:08:35,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:08:35,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:08:35,148 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:08:35,148 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:/tmp/vcloud-vcloud-master/worker/run_dir_4049ea6d-2efe-48d4-9197-35d84109eb47/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4049ea6d-2efe-48d4-9197-35d84109eb47/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e0d5536f9cd1f3a5d711f95a0369e25308fe790 [2020-11-28 03:08:35,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:08:35,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:08:35,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:08:35,414 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:08:35,415 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:08:35,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4049ea6d-2efe-48d4-9197-35d84109eb47/bin/uautomizer/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c [2020-11-28 03:08:35,492 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4049ea6d-2efe-48d4-9197-35d84109eb47/bin/uautomizer/data/9db3373dd/adbccc9feea748ae93f18bd628bc8533/FLAG0cf67899c [2020-11-28 03:08:36,037 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:08:36,038 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4049ea6d-2efe-48d4-9197-35d84109eb47/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c [2020-11-28 03:08:36,053 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4049ea6d-2efe-48d4-9197-35d84109eb47/bin/uautomizer/data/9db3373dd/adbccc9feea748ae93f18bd628bc8533/FLAG0cf67899c [2020-11-28 03:08:36,364 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4049ea6d-2efe-48d4-9197-35d84109eb47/bin/uautomizer/data/9db3373dd/adbccc9feea748ae93f18bd628bc8533 [2020-11-28 03:08:36,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:08:36,369 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:08:36,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:36,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:08:36,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:08:36,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:36" (1/1) ... [2020-11-28 03:08:36,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c576155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:36, skipping insertion in model container [2020-11-28 03:08:36,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:36" (1/1) ... [2020-11-28 03:08:36,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:08:36,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:08:36,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:36,861 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:08:36,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:36,969 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:08:36,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:36 WrapperNode [2020-11-28 03:08:36,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:36,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:08:36,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:08:36,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:08:36,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:36" (1/1) ... [2020-11-28 03:08:36,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:36" (1/1) ... [2020-11-28 03:08:36,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:36" (1/1) ... [2020-11-28 03:08:36,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:36" (1/1) ... [2020-11-28 03:08:37,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:36" (1/1) ... [2020-11-28 03:08:37,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:36" (1/1) ... [2020-11-28 03:08:37,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:36" (1/1) ... [2020-11-28 03:08:37,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:08:37,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:08:37,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:08:37,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:08:37,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4049ea6d-2efe-48d4-9197-35d84109eb47/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:08:37,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:08:37,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:08:37,161 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-28 03:08:37,161 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-11-28 03:08:37,161 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-11-28 03:08:37,162 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-11-28 03:08:37,162 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:08:37,162 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-11-28 03:08:37,163 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-11-28 03:08:37,163 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-11-28 03:08:37,164 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-11-28 03:08:37,164 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-11-28 03:08:37,164 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-11-28 03:08:37,164 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-11-28 03:08:37,165 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-11-28 03:08:37,165 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-11-28 03:08:37,167 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-11-28 03:08:37,167 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-11-28 03:08:37,168 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-11-28 03:08:37,168 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 03:08:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-28 03:08:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-28 03:08:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:08:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-11-28 03:08:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:08:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-11-28 03:08:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-11-28 03:08:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-11-28 03:08:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-11-28 03:08:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-11-28 03:08:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-11-28 03:08:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-11-28 03:08:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-11-28 03:08:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-11-28 03:08:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-11-28 03:08:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-11-28 03:08:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-11-28 03:08:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-11-28 03:08:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-11-28 03:08:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-11-28 03:08:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:08:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-11-28 03:08:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:08:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:08:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:08:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:08:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:08:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:08:37,537 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:08:37,741 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-11-28 03:08:37,742 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-11-28 03:08:37,747 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:08:37,811 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-11-28 03:08:37,811 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-11-28 03:08:37,932 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:08:37,961 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-11-28 03:08:37,961 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-11-28 03:08:37,969 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:08:38,166 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-11-28 03:08:38,166 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-11-28 03:08:38,171 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:08:38,202 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-11-28 03:08:38,202 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-11-28 03:08:38,208 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:08:38,247 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-11-28 03:08:38,247 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-11-28 03:08:38,313 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:08:38,313 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-28 03:08:38,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:38 BoogieIcfgContainer [2020-11-28 03:08:38,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:08:38,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:08:38,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:08:38,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:08:38,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:08:36" (1/3) ... [2020-11-28 03:08:38,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45070965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:38, skipping insertion in model container [2020-11-28 03:08:38,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:36" (2/3) ... [2020-11-28 03:08:38,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45070965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:38, skipping insertion in model container [2020-11-28 03:08:38,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:38" (3/3) ... [2020-11-28 03:08:38,329 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-1.c [2020-11-28 03:08:38,341 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:08:38,351 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 03:08:38,360 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 03:08:38,379 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:08:38,379 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:08:38,379 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:08:38,380 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:08:38,380 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:08:38,380 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:08:38,380 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:08:38,380 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:08:38,401 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states. [2020-11-28 03:08:38,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 03:08:38,409 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:38,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:38,411 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:38,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:38,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1218581619, now seen corresponding path program 1 times [2020-11-28 03:08:38,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:38,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324170728] [2020-11-28 03:08:38,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:38,800 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-28 03:08:38,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:38,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:38,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:38,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324170728] [2020-11-28 03:08:38,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:38,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:38,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819852251] [2020-11-28 03:08:38,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:08:38,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:38,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:08:38,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:08:38,934 INFO L87 Difference]: Start difference. First operand 244 states. Second operand 4 states. [2020-11-28 03:08:39,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:39,594 INFO L93 Difference]: Finished difference Result 266 states and 385 transitions. [2020-11-28 03:08:39,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:08:39,596 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-28 03:08:39,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:39,618 INFO L225 Difference]: With dead ends: 266 [2020-11-28 03:08:39,619 INFO L226 Difference]: Without dead ends: 257 [2020-11-28 03:08:39,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:08:39,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-11-28 03:08:39,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 229. [2020-11-28 03:08:39,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-11-28 03:08:39,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 324 transitions. [2020-11-28 03:08:39,702 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 324 transitions. Word has length 15 [2020-11-28 03:08:39,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:39,703 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 324 transitions. [2020-11-28 03:08:39,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:08:39,703 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 324 transitions. [2020-11-28 03:08:39,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 03:08:39,704 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:39,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:39,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:08:39,705 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:39,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:39,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1146815466, now seen corresponding path program 1 times [2020-11-28 03:08:39,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:39,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237436531] [2020-11-28 03:08:39,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:39,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:39,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:40,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:40,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237436531] [2020-11-28 03:08:40,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:40,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:08:40,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210214065] [2020-11-28 03:08:40,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:08:40,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:40,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:08:40,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:08:40,029 INFO L87 Difference]: Start difference. First operand 229 states and 324 transitions. Second operand 5 states. [2020-11-28 03:08:41,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:41,168 INFO L93 Difference]: Finished difference Result 257 states and 364 transitions. [2020-11-28 03:08:41,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:08:41,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-28 03:08:41,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:41,172 INFO L225 Difference]: With dead ends: 257 [2020-11-28 03:08:41,172 INFO L226 Difference]: Without dead ends: 257 [2020-11-28 03:08:41,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:08:41,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-11-28 03:08:41,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 229. [2020-11-28 03:08:41,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-11-28 03:08:41,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 323 transitions. [2020-11-28 03:08:41,194 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 323 transitions. Word has length 21 [2020-11-28 03:08:41,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:41,195 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 323 transitions. [2020-11-28 03:08:41,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:08:41,195 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 323 transitions. [2020-11-28 03:08:41,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-28 03:08:41,198 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:41,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:41,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:08:41,199 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:41,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:41,199 INFO L82 PathProgramCache]: Analyzing trace with hash 533223039, now seen corresponding path program 1 times [2020-11-28 03:08:41,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:41,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839485556] [2020-11-28 03:08:41,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:41,387 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-28 03:08:41,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:41,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:41,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:08:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:41,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:41,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839485556] [2020-11-28 03:08:41,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:41,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:08:41,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803515745] [2020-11-28 03:08:41,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:08:41,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:41,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:08:41,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:08:41,510 INFO L87 Difference]: Start difference. First operand 229 states and 323 transitions. Second operand 6 states. [2020-11-28 03:08:43,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:43,055 INFO L93 Difference]: Finished difference Result 346 states and 472 transitions. [2020-11-28 03:08:43,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:08:43,055 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-11-28 03:08:43,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:43,059 INFO L225 Difference]: With dead ends: 346 [2020-11-28 03:08:43,059 INFO L226 Difference]: Without dead ends: 345 [2020-11-28 03:08:43,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:08:43,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-11-28 03:08:43,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 302. [2020-11-28 03:08:43,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-11-28 03:08:43,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 412 transitions. [2020-11-28 03:08:43,111 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 412 transitions. Word has length 29 [2020-11-28 03:08:43,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:43,111 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 412 transitions. [2020-11-28 03:08:43,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:08:43,112 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 412 transitions. [2020-11-28 03:08:43,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-28 03:08:43,113 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:43,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:43,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:08:43,114 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:43,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:43,117 INFO L82 PathProgramCache]: Analyzing trace with hash -339825698, now seen corresponding path program 1 times [2020-11-28 03:08:43,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:43,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302164831] [2020-11-28 03:08:43,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:43,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:43,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:43,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:08:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:43,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:43,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302164831] [2020-11-28 03:08:43,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:43,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:08:43,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363202586] [2020-11-28 03:08:43,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:08:43,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:43,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:08:43,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:08:43,380 INFO L87 Difference]: Start difference. First operand 302 states and 412 transitions. Second operand 6 states. [2020-11-28 03:08:44,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:44,530 INFO L93 Difference]: Finished difference Result 364 states and 488 transitions. [2020-11-28 03:08:44,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:08:44,530 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-11-28 03:08:44,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:44,533 INFO L225 Difference]: With dead ends: 364 [2020-11-28 03:08:44,533 INFO L226 Difference]: Without dead ends: 364 [2020-11-28 03:08:44,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:08:44,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-11-28 03:08:44,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 342. [2020-11-28 03:08:44,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-11-28 03:08:44,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 463 transitions. [2020-11-28 03:08:44,567 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 463 transitions. Word has length 29 [2020-11-28 03:08:44,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:44,568 INFO L481 AbstractCegarLoop]: Abstraction has 342 states and 463 transitions. [2020-11-28 03:08:44,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:08:44,568 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 463 transitions. [2020-11-28 03:08:44,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-28 03:08:44,571 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:44,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:44,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:08:44,572 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:44,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:44,572 INFO L82 PathProgramCache]: Analyzing trace with hash -504962935, now seen corresponding path program 1 times [2020-11-28 03:08:44,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:44,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496934751] [2020-11-28 03:08:44,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:44,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:44,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:44,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:08:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:44,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:44,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496934751] [2020-11-28 03:08:44,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:44,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:08:44,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052100429] [2020-11-28 03:08:44,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:08:44,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:44,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:08:44,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:08:44,892 INFO L87 Difference]: Start difference. First operand 342 states and 463 transitions. Second operand 6 states. [2020-11-28 03:08:45,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:45,837 INFO L93 Difference]: Finished difference Result 341 states and 460 transitions. [2020-11-28 03:08:45,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:08:45,838 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-11-28 03:08:45,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:45,840 INFO L225 Difference]: With dead ends: 341 [2020-11-28 03:08:45,841 INFO L226 Difference]: Without dead ends: 341 [2020-11-28 03:08:45,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:08:45,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-11-28 03:08:45,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2020-11-28 03:08:45,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-11-28 03:08:45,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 460 transitions. [2020-11-28 03:08:45,873 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 460 transitions. Word has length 39 [2020-11-28 03:08:45,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:45,874 INFO L481 AbstractCegarLoop]: Abstraction has 341 states and 460 transitions. [2020-11-28 03:08:45,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:08:45,874 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 460 transitions. [2020-11-28 03:08:45,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-28 03:08:45,885 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:45,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:45,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:08:45,885 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:45,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:45,886 INFO L82 PathProgramCache]: Analyzing trace with hash -164117486, now seen corresponding path program 1 times [2020-11-28 03:08:45,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:45,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504234766] [2020-11-28 03:08:45,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:46,071 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-28 03:08:46,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:46,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:46,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:08:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:46,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-28 03:08:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:46,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:46,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504234766] [2020-11-28 03:08:46,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:46,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:08:46,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814055718] [2020-11-28 03:08:46,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:08:46,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:46,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:08:46,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:08:46,209 INFO L87 Difference]: Start difference. First operand 341 states and 460 transitions. Second operand 8 states. [2020-11-28 03:08:46,789 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-28 03:08:47,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:47,778 INFO L93 Difference]: Finished difference Result 321 states and 425 transitions. [2020-11-28 03:08:47,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:08:47,778 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2020-11-28 03:08:47,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:47,781 INFO L225 Difference]: With dead ends: 321 [2020-11-28 03:08:47,781 INFO L226 Difference]: Without dead ends: 321 [2020-11-28 03:08:47,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:08:47,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-11-28 03:08:47,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 302. [2020-11-28 03:08:47,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-11-28 03:08:47,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 403 transitions. [2020-11-28 03:08:47,794 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 403 transitions. Word has length 47 [2020-11-28 03:08:47,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:47,795 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 403 transitions. [2020-11-28 03:08:47,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:08:47,795 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 403 transitions. [2020-11-28 03:08:47,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-28 03:08:47,797 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:47,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:47,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:08:47,798 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:47,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:47,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1322033219, now seen corresponding path program 1 times [2020-11-28 03:08:47,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:47,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554652552] [2020-11-28 03:08:47,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:48,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:48,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:48,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:08:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:48,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-28 03:08:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:48,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-28 03:08:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:48,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554652552] [2020-11-28 03:08:48,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:48,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-28 03:08:48,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021745255] [2020-11-28 03:08:48,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:08:48,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:48,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:08:48,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:08:48,256 INFO L87 Difference]: Start difference. First operand 302 states and 403 transitions. Second operand 12 states. [2020-11-28 03:08:48,428 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-28 03:08:48,566 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-28 03:08:49,646 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-11-28 03:08:49,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:49,808 INFO L93 Difference]: Finished difference Result 324 states and 427 transitions. [2020-11-28 03:08:49,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 03:08:49,809 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2020-11-28 03:08:49,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:49,811 INFO L225 Difference]: With dead ends: 324 [2020-11-28 03:08:49,811 INFO L226 Difference]: Without dead ends: 324 [2020-11-28 03:08:49,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-11-28 03:08:49,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-11-28 03:08:49,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 316. [2020-11-28 03:08:49,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-11-28 03:08:49,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 419 transitions. [2020-11-28 03:08:49,824 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 419 transitions. Word has length 46 [2020-11-28 03:08:49,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:49,825 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 419 transitions. [2020-11-28 03:08:49,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:08:49,825 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 419 transitions. [2020-11-28 03:08:49,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-28 03:08:49,826 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:49,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:49,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:08:49,827 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:49,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:49,828 INFO L82 PathProgramCache]: Analyzing trace with hash -840477701, now seen corresponding path program 1 times [2020-11-28 03:08:49,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:49,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456702326] [2020-11-28 03:08:49,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:49,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:50,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:50,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:08:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:50,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-28 03:08:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:50,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-28 03:08:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:50,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:50,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456702326] [2020-11-28 03:08:50,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:50,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-28 03:08:50,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348919377] [2020-11-28 03:08:50,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:08:50,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:50,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:08:50,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:08:50,253 INFO L87 Difference]: Start difference. First operand 316 states and 419 transitions. Second operand 12 states. [2020-11-28 03:08:51,541 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-11-28 03:08:51,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:51,920 INFO L93 Difference]: Finished difference Result 324 states and 426 transitions. [2020-11-28 03:08:51,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 03:08:51,920 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2020-11-28 03:08:51,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:51,923 INFO L225 Difference]: With dead ends: 324 [2020-11-28 03:08:51,923 INFO L226 Difference]: Without dead ends: 324 [2020-11-28 03:08:51,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-11-28 03:08:51,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-11-28 03:08:51,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 317. [2020-11-28 03:08:51,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-11-28 03:08:51,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 420 transitions. [2020-11-28 03:08:51,937 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 420 transitions. Word has length 47 [2020-11-28 03:08:51,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:51,938 INFO L481 AbstractCegarLoop]: Abstraction has 317 states and 420 transitions. [2020-11-28 03:08:51,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:08:51,938 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 420 transitions. [2020-11-28 03:08:51,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-28 03:08:51,940 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:51,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:51,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:08:51,940 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:51,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:51,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1756698701, now seen corresponding path program 1 times [2020-11-28 03:08:51,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:51,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413927808] [2020-11-28 03:08:51,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:52,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:52,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:52,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:08:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:52,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-28 03:08:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:52,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-28 03:08:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:52,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:52,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413927808] [2020-11-28 03:08:52,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:52,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:08:52,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950427849] [2020-11-28 03:08:52,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:08:52,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:52,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:08:52,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:08:52,260 INFO L87 Difference]: Start difference. First operand 317 states and 420 transitions. Second operand 8 states. [2020-11-28 03:08:53,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:53,151 INFO L93 Difference]: Finished difference Result 311 states and 409 transitions. [2020-11-28 03:08:53,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:08:53,151 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2020-11-28 03:08:53,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:53,153 INFO L225 Difference]: With dead ends: 311 [2020-11-28 03:08:53,153 INFO L226 Difference]: Without dead ends: 103 [2020-11-28 03:08:53,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:08:53,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-11-28 03:08:53,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-11-28 03:08:53,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-28 03:08:53,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 119 transitions. [2020-11-28 03:08:53,158 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 119 transitions. Word has length 48 [2020-11-28 03:08:53,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:53,158 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 119 transitions. [2020-11-28 03:08:53,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:08:53,159 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 119 transitions. [2020-11-28 03:08:53,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-28 03:08:53,159 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:53,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:53,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:08:53,160 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:53,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:53,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1076219426, now seen corresponding path program 1 times [2020-11-28 03:08:53,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:53,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753872704] [2020-11-28 03:08:53,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:53,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:53,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:53,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:08:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:53,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-11-28 03:08:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:53,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:08:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:53,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-28 03:08:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:53,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:53,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753872704] [2020-11-28 03:08:53,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:53,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:08:53,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73031792] [2020-11-28 03:08:53,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:08:53,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:53,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:08:53,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:08:53,437 INFO L87 Difference]: Start difference. First operand 103 states and 119 transitions. Second operand 8 states. [2020-11-28 03:08:53,579 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-28 03:08:53,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:53,962 INFO L93 Difference]: Finished difference Result 101 states and 115 transitions. [2020-11-28 03:08:53,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:08:53,962 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-11-28 03:08:53,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:53,963 INFO L225 Difference]: With dead ends: 101 [2020-11-28 03:08:53,963 INFO L226 Difference]: Without dead ends: 101 [2020-11-28 03:08:53,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:08:53,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-11-28 03:08:53,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-11-28 03:08:53,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-28 03:08:53,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2020-11-28 03:08:53,967 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 54 [2020-11-28 03:08:53,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:53,968 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2020-11-28 03:08:53,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:08:53,968 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2020-11-28 03:08:53,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-28 03:08:53,969 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:53,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:53,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:08:53,969 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:53,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:53,974 INFO L82 PathProgramCache]: Analyzing trace with hash 2078497852, now seen corresponding path program 1 times [2020-11-28 03:08:53,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:53,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811616656] [2020-11-28 03:08:53,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:54,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:54,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:54,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:08:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:54,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-28 03:08:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:54,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:08:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:54,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:08:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:54,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:54,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811616656] [2020-11-28 03:08:54,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:54,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-28 03:08:54,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836813065] [2020-11-28 03:08:54,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 03:08:54,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:54,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 03:08:54,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:08:54,343 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 11 states. [2020-11-28 03:08:54,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:54,757 INFO L93 Difference]: Finished difference Result 122 states and 140 transitions. [2020-11-28 03:08:54,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:08:54,758 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 58 [2020-11-28 03:08:54,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:54,759 INFO L225 Difference]: With dead ends: 122 [2020-11-28 03:08:54,759 INFO L226 Difference]: Without dead ends: 122 [2020-11-28 03:08:54,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-11-28 03:08:54,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-11-28 03:08:54,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 113. [2020-11-28 03:08:54,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-11-28 03:08:54,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 130 transitions. [2020-11-28 03:08:54,764 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 130 transitions. Word has length 58 [2020-11-28 03:08:54,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:54,765 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 130 transitions. [2020-11-28 03:08:54,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 03:08:54,765 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 130 transitions. [2020-11-28 03:08:54,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-28 03:08:54,767 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:54,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:54,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:08:54,768 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:54,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:54,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1308229357, now seen corresponding path program 1 times [2020-11-28 03:08:54,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:54,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613825042] [2020-11-28 03:08:54,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:54,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:54,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:54,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:08:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:55,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-28 03:08:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:55,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:08:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:55,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:08:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:55,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:55,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613825042] [2020-11-28 03:08:55,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:55,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-28 03:08:55,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199731201] [2020-11-28 03:08:55,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 03:08:55,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:55,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 03:08:55,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:08:55,096 INFO L87 Difference]: Start difference. First operand 113 states and 130 transitions. Second operand 11 states. [2020-11-28 03:08:55,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:55,411 INFO L93 Difference]: Finished difference Result 119 states and 134 transitions. [2020-11-28 03:08:55,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:08:55,412 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 58 [2020-11-28 03:08:55,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:55,413 INFO L225 Difference]: With dead ends: 119 [2020-11-28 03:08:55,413 INFO L226 Difference]: Without dead ends: 112 [2020-11-28 03:08:55,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:08:55,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-11-28 03:08:55,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2020-11-28 03:08:55,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-28 03:08:55,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2020-11-28 03:08:55,417 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 58 [2020-11-28 03:08:55,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:55,418 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2020-11-28 03:08:55,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 03:08:55,418 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2020-11-28 03:08:55,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-28 03:08:55,419 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:55,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:55,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:08:55,419 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:55,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:55,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1901754731, now seen corresponding path program 1 times [2020-11-28 03:08:55,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:55,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406963307] [2020-11-28 03:08:55,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:55,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:55,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:55,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:08:55,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:55,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-28 03:08:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:55,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:08:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:55,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:08:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:55,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:55,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406963307] [2020-11-28 03:08:55,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:55,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:08:55,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504814094] [2020-11-28 03:08:55,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:08:55,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:55,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:08:55,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:08:55,886 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand 8 states. [2020-11-28 03:08:56,026 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-28 03:08:56,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:56,312 INFO L93 Difference]: Finished difference Result 198 states and 224 transitions. [2020-11-28 03:08:56,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:08:56,313 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2020-11-28 03:08:56,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:56,315 INFO L225 Difference]: With dead ends: 198 [2020-11-28 03:08:56,315 INFO L226 Difference]: Without dead ends: 198 [2020-11-28 03:08:56,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:08:56,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-11-28 03:08:56,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 185. [2020-11-28 03:08:56,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-11-28 03:08:56,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 211 transitions. [2020-11-28 03:08:56,324 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 211 transitions. Word has length 59 [2020-11-28 03:08:56,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:56,325 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 211 transitions. [2020-11-28 03:08:56,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:08:56,325 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 211 transitions. [2020-11-28 03:08:56,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-28 03:08:56,326 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:56,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:56,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 03:08:56,327 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:56,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:56,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1583865939, now seen corresponding path program 1 times [2020-11-28 03:08:56,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:56,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99364182] [2020-11-28 03:08:56,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:56,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:56,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:56,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:08:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:56,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-28 03:08:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:56,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:08:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:56,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:08:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:56,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:56,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99364182] [2020-11-28 03:08:56,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:56,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-28 03:08:56,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668501556] [2020-11-28 03:08:56,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 03:08:56,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:56,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 03:08:56,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:08:56,714 INFO L87 Difference]: Start difference. First operand 185 states and 211 transitions. Second operand 10 states. [2020-11-28 03:08:56,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:56,966 INFO L93 Difference]: Finished difference Result 173 states and 193 transitions. [2020-11-28 03:08:56,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:08:56,967 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 59 [2020-11-28 03:08:56,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:56,968 INFO L225 Difference]: With dead ends: 173 [2020-11-28 03:08:56,968 INFO L226 Difference]: Without dead ends: 173 [2020-11-28 03:08:56,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:08:56,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-11-28 03:08:56,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2020-11-28 03:08:56,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-11-28 03:08:56,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 193 transitions. [2020-11-28 03:08:56,975 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 193 transitions. Word has length 59 [2020-11-28 03:08:56,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:56,976 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 193 transitions. [2020-11-28 03:08:56,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 03:08:56,976 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 193 transitions. [2020-11-28 03:08:56,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-28 03:08:56,977 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:56,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:56,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-28 03:08:56,978 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:56,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:56,979 INFO L82 PathProgramCache]: Analyzing trace with hash -458128180, now seen corresponding path program 1 times [2020-11-28 03:08:56,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:56,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033264339] [2020-11-28 03:08:56,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:57,145 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-28 03:08:57,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:57,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:57,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:57,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:08:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:57,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-28 03:08:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:57,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:08:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:57,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:08:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:57,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-28 03:08:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:57,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:57,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033264339] [2020-11-28 03:08:57,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:57,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-28 03:08:57,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327258861] [2020-11-28 03:08:57,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:08:57,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:57,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:08:57,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:08:57,380 INFO L87 Difference]: Start difference. First operand 173 states and 193 transitions. Second operand 12 states. [2020-11-28 03:08:57,526 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-28 03:08:58,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:58,005 INFO L93 Difference]: Finished difference Result 161 states and 177 transitions. [2020-11-28 03:08:58,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:08:58,006 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 63 [2020-11-28 03:08:58,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:58,007 INFO L225 Difference]: With dead ends: 161 [2020-11-28 03:08:58,007 INFO L226 Difference]: Without dead ends: 157 [2020-11-28 03:08:58,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-11-28 03:08:58,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-11-28 03:08:58,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2020-11-28 03:08:58,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-11-28 03:08:58,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 173 transitions. [2020-11-28 03:08:58,013 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 173 transitions. Word has length 63 [2020-11-28 03:08:58,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:58,013 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 173 transitions. [2020-11-28 03:08:58,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:08:58,013 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 173 transitions. [2020-11-28 03:08:58,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-11-28 03:08:58,017 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:58,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:58,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-28 03:08:58,018 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:58,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:58,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1363713922, now seen corresponding path program 1 times [2020-11-28 03:08:58,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:58,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266660849] [2020-11-28 03:08:58,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:58,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:58,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:58,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:08:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:58,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-28 03:08:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:58,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:08:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:58,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:08:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:58,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-28 03:08:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:58,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:58,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266660849] [2020-11-28 03:08:58,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:58,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-28 03:08:58,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939737840] [2020-11-28 03:08:58,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:08:58,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:58,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:08:58,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:08:58,310 INFO L87 Difference]: Start difference. First operand 157 states and 173 transitions. Second operand 9 states. [2020-11-28 03:08:58,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:58,524 INFO L93 Difference]: Finished difference Result 169 states and 185 transitions. [2020-11-28 03:08:58,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:08:58,525 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-11-28 03:08:58,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:58,526 INFO L225 Difference]: With dead ends: 169 [2020-11-28 03:08:58,526 INFO L226 Difference]: Without dead ends: 169 [2020-11-28 03:08:58,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:08:58,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-11-28 03:08:58,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 163. [2020-11-28 03:08:58,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-28 03:08:58,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 179 transitions. [2020-11-28 03:08:58,532 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 179 transitions. Word has length 65 [2020-11-28 03:08:58,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:58,532 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 179 transitions. [2020-11-28 03:08:58,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:08:58,532 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 179 transitions. [2020-11-28 03:08:58,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-11-28 03:08:58,533 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:58,533 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:58,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-28 03:08:58,534 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:58,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:58,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1149867629, now seen corresponding path program 1 times [2020-11-28 03:08:58,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:58,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419094894] [2020-11-28 03:08:58,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:58,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:58,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:58,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:08:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:58,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-28 03:08:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:58,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:08:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:58,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:08:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:58,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-28 03:08:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:58,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:58,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419094894] [2020-11-28 03:08:58,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:58,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-28 03:08:58,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217429268] [2020-11-28 03:08:58,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:08:58,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:58,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:08:58,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:08:58,835 INFO L87 Difference]: Start difference. First operand 163 states and 179 transitions. Second operand 9 states. [2020-11-28 03:08:59,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:59,212 INFO L93 Difference]: Finished difference Result 181 states and 198 transitions. [2020-11-28 03:08:59,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:08:59,212 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-11-28 03:08:59,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:59,214 INFO L225 Difference]: With dead ends: 181 [2020-11-28 03:08:59,214 INFO L226 Difference]: Without dead ends: 179 [2020-11-28 03:08:59,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:08:59,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-11-28 03:08:59,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 167. [2020-11-28 03:08:59,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-11-28 03:08:59,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 182 transitions. [2020-11-28 03:08:59,220 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 182 transitions. Word has length 65 [2020-11-28 03:08:59,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:59,220 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 182 transitions. [2020-11-28 03:08:59,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:08:59,221 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 182 transitions. [2020-11-28 03:08:59,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-11-28 03:08:59,222 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:59,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:59,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-28 03:08:59,223 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:59,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:59,223 INFO L82 PathProgramCache]: Analyzing trace with hash -651239234, now seen corresponding path program 1 times [2020-11-28 03:08:59,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:59,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400490518] [2020-11-28 03:08:59,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:59,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:08:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:59,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:08:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:59,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:08:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:59,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-28 03:08:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:59,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:08:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:59,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:08:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:59,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-28 03:08:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:59,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:59,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400490518] [2020-11-28 03:08:59,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:59,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-28 03:08:59,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579534124] [2020-11-28 03:08:59,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:08:59,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:59,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:08:59,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:08:59,558 INFO L87 Difference]: Start difference. First operand 167 states and 182 transitions. Second operand 12 states. [2020-11-28 03:08:59,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:59,985 INFO L93 Difference]: Finished difference Result 176 states and 189 transitions. [2020-11-28 03:08:59,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:08:59,985 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2020-11-28 03:08:59,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:59,986 INFO L225 Difference]: With dead ends: 176 [2020-11-28 03:08:59,987 INFO L226 Difference]: Without dead ends: 176 [2020-11-28 03:08:59,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:08:59,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-11-28 03:08:59,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 167. [2020-11-28 03:08:59,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-11-28 03:08:59,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 180 transitions. [2020-11-28 03:08:59,992 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 180 transitions. Word has length 65 [2020-11-28 03:08:59,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:59,993 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 180 transitions. [2020-11-28 03:08:59,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:08:59,993 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 180 transitions. [2020-11-28 03:08:59,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-11-28 03:08:59,994 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:59,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:59,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-28 03:08:59,994 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:08:59,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:59,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1790483582, now seen corresponding path program 1 times [2020-11-28 03:08:59,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:59,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865127795] [2020-11-28 03:08:59,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:00,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:09:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:00,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:09:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:00,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:09:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:00,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-28 03:09:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:00,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:09:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:00,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:09:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:00,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-28 03:09:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:00,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:00,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865127795] [2020-11-28 03:09:00,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:00,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-28 03:09:00,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672795242] [2020-11-28 03:09:00,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:09:00,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:00,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:09:00,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:09:00,431 INFO L87 Difference]: Start difference. First operand 167 states and 180 transitions. Second operand 12 states. [2020-11-28 03:09:00,583 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-28 03:09:00,888 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-11-28 03:09:01,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:01,382 INFO L93 Difference]: Finished difference Result 164 states and 176 transitions. [2020-11-28 03:09:01,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 03:09:01,386 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 66 [2020-11-28 03:09:01,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:01,387 INFO L225 Difference]: With dead ends: 164 [2020-11-28 03:09:01,388 INFO L226 Difference]: Without dead ends: 145 [2020-11-28 03:09:01,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-11-28 03:09:01,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-11-28 03:09:01,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-11-28 03:09:01,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-11-28 03:09:01,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 154 transitions. [2020-11-28 03:09:01,392 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 154 transitions. Word has length 66 [2020-11-28 03:09:01,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:01,392 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 154 transitions. [2020-11-28 03:09:01,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:09:01,392 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 154 transitions. [2020-11-28 03:09:01,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-11-28 03:09:01,393 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:01,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:01,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-28 03:09:01,393 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:09:01,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:01,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1433605103, now seen corresponding path program 1 times [2020-11-28 03:09:01,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:01,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383572876] [2020-11-28 03:09:01,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:01,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:09:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:01,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:09:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:01,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:09:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:01,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-28 03:09:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:01,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:09:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:01,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:09:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:01,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-28 03:09:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:01,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:01,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383572876] [2020-11-28 03:09:01,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:01,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-28 03:09:01,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141324330] [2020-11-28 03:09:01,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:09:01,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:01,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:09:01,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:09:01,801 INFO L87 Difference]: Start difference. First operand 145 states and 154 transitions. Second operand 12 states. [2020-11-28 03:09:02,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:02,240 INFO L93 Difference]: Finished difference Result 145 states and 152 transitions. [2020-11-28 03:09:02,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:09:02,241 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 66 [2020-11-28 03:09:02,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:02,242 INFO L225 Difference]: With dead ends: 145 [2020-11-28 03:09:02,242 INFO L226 Difference]: Without dead ends: 145 [2020-11-28 03:09:02,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:09:02,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-11-28 03:09:02,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-11-28 03:09:02,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-11-28 03:09:02,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 152 transitions. [2020-11-28 03:09:02,245 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 152 transitions. Word has length 66 [2020-11-28 03:09:02,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:02,246 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 152 transitions. [2020-11-28 03:09:02,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:09:02,246 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 152 transitions. [2020-11-28 03:09:02,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-11-28 03:09:02,246 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:02,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:02,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-28 03:09:02,247 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:09:02,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:02,247 INFO L82 PathProgramCache]: Analyzing trace with hash 101258944, now seen corresponding path program 1 times [2020-11-28 03:09:02,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:02,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24840055] [2020-11-28 03:09:02,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:02,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:09:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:02,559 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-11-28 03:09:02,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:09:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:02,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:09:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:02,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-28 03:09:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:02,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:09:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:02,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:09:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:02,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-28 03:09:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:02,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:02,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24840055] [2020-11-28 03:09:02,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:02,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-28 03:09:02,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250476066] [2020-11-28 03:09:02,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:09:02,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:02,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:09:02,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:09:02,703 INFO L87 Difference]: Start difference. First operand 145 states and 152 transitions. Second operand 9 states. [2020-11-28 03:09:03,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:03,024 INFO L93 Difference]: Finished difference Result 140 states and 143 transitions. [2020-11-28 03:09:03,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:09:03,025 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-11-28 03:09:03,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:03,026 INFO L225 Difference]: With dead ends: 140 [2020-11-28 03:09:03,026 INFO L226 Difference]: Without dead ends: 138 [2020-11-28 03:09:03,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:09:03,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-11-28 03:09:03,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-11-28 03:09:03,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-11-28 03:09:03,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 141 transitions. [2020-11-28 03:09:03,033 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 141 transitions. Word has length 66 [2020-11-28 03:09:03,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:03,034 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 141 transitions. [2020-11-28 03:09:03,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:09:03,034 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 141 transitions. [2020-11-28 03:09:03,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-11-28 03:09:03,037 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:03,037 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:03,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-28 03:09:03,037 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:09:03,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:03,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1317067693, now seen corresponding path program 1 times [2020-11-28 03:09:03,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:03,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838298905] [2020-11-28 03:09:03,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:03,210 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-28 03:09:03,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:09:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:03,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:09:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:03,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:09:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:03,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-28 03:09:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:03,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:09:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:03,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:09:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:03,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-28 03:09:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:03,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-11-28 03:09:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:03,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838298905] [2020-11-28 03:09:03,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:03,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-28 03:09:03,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927200593] [2020-11-28 03:09:03,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 03:09:03,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:03,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 03:09:03,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:09:03,412 INFO L87 Difference]: Start difference. First operand 138 states and 141 transitions. Second operand 11 states. [2020-11-28 03:09:03,543 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-28 03:09:03,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:03,714 INFO L93 Difference]: Finished difference Result 108 states and 107 transitions. [2020-11-28 03:09:03,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:09:03,716 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 77 [2020-11-28 03:09:03,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:03,717 INFO L225 Difference]: With dead ends: 108 [2020-11-28 03:09:03,717 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:09:03,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:09:03,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:09:03,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:09:03,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:09:03,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:09:03,718 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2020-11-28 03:09:03,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:03,718 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:09:03,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 03:09:03,719 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:09:03,719 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:09:03,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-28 03:09:03,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:09:03 BoogieIcfgContainer [2020-11-28 03:09:03,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:09:03,725 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:09:03,725 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:09:03,726 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:09:03,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:38" (3/4) ... [2020-11-28 03:09:03,730 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:09:03,738 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reach_error [2020-11-28 03:09:03,738 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KeSetEvent [2020-11-28 03:09:03,738 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KbFilter_Complete [2020-11-28 03:09:03,739 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stub_driver_init [2020-11-28 03:09:03,739 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KbFilter_Power [2020-11-28 03:09:03,739 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure _BLAST_init [2020-11-28 03:09:03,739 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure errorFn [2020-11-28 03:09:03,739 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-11-28 03:09:03,739 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCallDriver [2020-11-28 03:09:03,740 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stubMoreProcessingRequired [2020-11-28 03:09:03,740 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure PoCallDriver [2020-11-28 03:09:03,740 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-11-28 03:09:03,740 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KbFilter_CreateClose [2020-11-28 03:09:03,740 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KbFilter_InternIoCtl [2020-11-28 03:09:03,740 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KeWaitForSingleObject [2020-11-28 03:09:03,741 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCompleteRequest [2020-11-28 03:09:03,741 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KbFilter_DispatchPassThrough [2020-11-28 03:09:03,741 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KbFilter_PnP [2020-11-28 03:09:03,772 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2020-11-28 03:09:03,774 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2020-11-28 03:09:03,776 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:09:03,778 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:09:03,951 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4049ea6d-2efe-48d4-9197-35d84109eb47/bin/uautomizer/witness.graphml [2020-11-28 03:09:03,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:09:03,953 INFO L168 Benchmark]: Toolchain (without parser) took 27583.40 ms. Allocated memory was 102.8 MB in the beginning and 264.2 MB in the end (delta: 161.5 MB). Free memory was 70.2 MB in the beginning and 136.4 MB in the end (delta: -66.2 MB). Peak memory consumption was 97.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:03,954 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 73.4 MB. Free memory was 31.9 MB in the beginning and 31.8 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:03,954 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.87 ms. Allocated memory is still 102.8 MB. Free memory was 70.0 MB in the beginning and 72.1 MB in the end (delta: -2.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:03,954 INFO L168 Benchmark]: Boogie Preprocessor took 82.93 ms. Allocated memory is still 102.8 MB. Free memory was 72.1 MB in the beginning and 69.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:03,955 INFO L168 Benchmark]: RCFGBuilder took 1264.61 ms. Allocated memory is still 102.8 MB. Free memory was 69.1 MB in the beginning and 48.7 MB in the end (delta: 20.4 MB). Peak memory consumption was 45.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:03,955 INFO L168 Benchmark]: TraceAbstraction took 25404.06 ms. Allocated memory was 102.8 MB in the beginning and 264.2 MB in the end (delta: 161.5 MB). Free memory was 48.1 MB in the beginning and 152.2 MB in the end (delta: -104.1 MB). Peak memory consumption was 57.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:03,956 INFO L168 Benchmark]: Witness Printer took 226.74 ms. Allocated memory is still 264.2 MB. Free memory was 152.2 MB in the beginning and 136.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:03,958 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 73.4 MB. Free memory was 31.9 MB in the beginning and 31.8 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 596.87 ms. Allocated memory is still 102.8 MB. Free memory was 70.0 MB in the beginning and 72.1 MB in the end (delta: -2.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.93 ms. Allocated memory is still 102.8 MB. Free memory was 72.1 MB in the beginning and 69.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1264.61 ms. Allocated memory is still 102.8 MB. Free memory was 69.1 MB in the beginning and 48.7 MB in the end (delta: 20.4 MB). Peak memory consumption was 45.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 25404.06 ms. Allocated memory was 102.8 MB in the beginning and 264.2 MB in the end (delta: 161.5 MB). Free memory was 48.1 MB in the beginning and 152.2 MB in the end (delta: -104.1 MB). Peak memory consumption was 57.0 MB. Max. memory is 16.1 GB. * Witness Printer took 226.74 ms. Allocated memory is still 264.2 MB. Free memory was 152.2 MB in the beginning and 136.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 295]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 244 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.3s, OverallIterations: 22, TraceHistogramMax: 1, AutomataDifference: 16.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3463 SDtfs, 5150 SDslu, 3846 SDs, 0 SdLazy, 7603 SolverSat, 1274 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 427 GetRequests, 207 SyntacticMatches, 3 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 9.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=342occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 22 MinimizatonAttempts, 209 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 1142 NumberOfCodeBlocks, 1142 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1120 ConstructedInterpolants, 0 QuantifiedInterpolants, 309831 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...