./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa --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 db1e722f73dbd7795cdbaca4c816f6c8a0f90138145d9f90bf0f222b7dd371eb --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:51:53,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:51:53,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:51:53,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:51:53,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:51:53,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:51:53,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:51:53,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:51:53,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:51:53,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:51:53,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:51:53,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:51:53,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:51:53,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:51:53,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:51:53,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:51:53,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:51:53,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:51:53,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:51:53,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:51:53,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:51:53,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:51:53,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:51:53,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:51:53,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:51:53,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:51:53,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:51:53,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:51:53,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:51:53,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:51:53,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:51:53,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:51:53,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:51:53,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:51:53,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:51:53,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:51:53,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:51:53,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:51:53,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:51:53,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:51:53,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:51:53,946 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-06 18:51:53,968 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:51:53,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:51:53,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:51:53,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:51:53,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:51:53,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:51:53,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:51:53,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:51:53,970 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:51:53,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:51:53,970 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:51:53,970 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 18:51:53,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:51:53,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:51:53,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:51:53,971 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 18:51:53,971 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 18:51:53,972 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 18:51:53,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:51:53,972 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 18:51:53,972 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:51:53,972 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:51:53,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:51:53,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:51:53,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:51:53,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:51:53,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:51:53,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:51:53,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:51:53,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:51:53,979 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:51:53,979 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_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db1e722f73dbd7795cdbaca4c816f6c8a0f90138145d9f90bf0f222b7dd371eb [2021-12-06 18:51:54,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:51:54,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:51:54,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:51:54,177 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:51:54,178 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:51:54,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2021-12-06 18:51:54,225 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa/data/549b02db4/5863a6073d2a4f9fa4a415f89ffd9476/FLAG7ba4b424b [2021-12-06 18:51:54,638 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:51:54,639 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2021-12-06 18:51:54,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa/data/549b02db4/5863a6073d2a4f9fa4a415f89ffd9476/FLAG7ba4b424b [2021-12-06 18:51:54,661 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa/data/549b02db4/5863a6073d2a4f9fa4a415f89ffd9476 [2021-12-06 18:51:54,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:51:54,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:51:54,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:51:54,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:51:54,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:51:54,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:51:54" (1/1) ... [2021-12-06 18:51:54,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb5363d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:51:54, skipping insertion in model container [2021-12-06 18:51:54,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:51:54" (1/1) ... [2021-12-06 18:51:54,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:51:54,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:51:54,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c[17080,17093] [2021-12-06 18:51:54,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:51:54,858 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:51:54,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c[17080,17093] [2021-12-06 18:51:54,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:51:54,903 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:51:54,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:51:54 WrapperNode [2021-12-06 18:51:54,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:51:54,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:51:54,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:51:54,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:51:54,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:51:54" (1/1) ... [2021-12-06 18:51:54,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:51:54" (1/1) ... [2021-12-06 18:51:54,942 INFO L137 Inliner]: procedures = 24, calls = 29, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 423 [2021-12-06 18:51:54,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:51:54,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:51:54,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:51:54,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:51:54,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:51:54" (1/1) ... [2021-12-06 18:51:54,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:51:54" (1/1) ... [2021-12-06 18:51:54,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:51:54" (1/1) ... [2021-12-06 18:51:54,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:51:54" (1/1) ... [2021-12-06 18:51:54,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:51:54" (1/1) ... [2021-12-06 18:51:54,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:51:54" (1/1) ... [2021-12-06 18:51:54,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:51:54" (1/1) ... [2021-12-06 18:51:54,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:51:54,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:51:54,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:51:54,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:51:54,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:51:54" (1/1) ... [2021-12-06 18:51:54,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:51:54,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:51:54,998 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:51:55,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:51:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:51:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-12-06 18:51:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-12-06 18:51:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:51:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-12-06 18:51:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-12-06 18:51:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:51:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:51:55,116 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:51:55,117 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:51:55,138 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 18:51:55,144 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 18:51:55,147 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 18:51:55,378 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##82: assume !false; [2021-12-06 18:51:55,378 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##81: assume false; [2021-12-06 18:51:55,379 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##58: assume !false; [2021-12-06 18:51:55,379 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume false; [2021-12-06 18:51:55,379 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2021-12-06 18:51:55,379 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2021-12-06 18:51:55,381 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 18:51:55,407 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2021-12-06 18:51:55,407 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2021-12-06 18:51:55,410 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:51:55,416 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:51:55,416 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 18:51:55,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:51:55 BoogieIcfgContainer [2021-12-06 18:51:55,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:51:55,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:51:55,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:51:55,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:51:55,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:51:54" (1/3) ... [2021-12-06 18:51:55,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b8c550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:51:55, skipping insertion in model container [2021-12-06 18:51:55,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:51:54" (2/3) ... [2021-12-06 18:51:55,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b8c550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:51:55, skipping insertion in model container [2021-12-06 18:51:55,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:51:55" (3/3) ... [2021-12-06 18:51:55,426 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl1.cil.c [2021-12-06 18:51:55,431 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:51:55,432 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-06 18:51:55,465 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:51:55,470 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 18:51:55,471 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-06 18:51:55,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 103 states have (on average 1.6213592233009708) internal successors, (167), 115 states have internal predecessors, (167), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2021-12-06 18:51:55,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-06 18:51:55,488 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:55,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:51:55,489 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:55,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:55,493 INFO L85 PathProgramCache]: Analyzing trace with hash -266564522, now seen corresponding path program 1 times [2021-12-06 18:51:55,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:55,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567218534] [2021-12-06 18:51:55,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:55,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:55,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:55,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:55,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567218534] [2021-12-06 18:51:55,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567218534] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:55,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:55,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:51:55,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874278179] [2021-12-06 18:51:55,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:55,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:51:55,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:55,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:51:55,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:51:55,664 INFO L87 Difference]: Start difference. First operand has 122 states, 103 states have (on average 1.6213592233009708) internal successors, (167), 115 states have internal predecessors, (167), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:51:55,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:55,702 INFO L93 Difference]: Finished difference Result 124 states and 184 transitions. [2021-12-06 18:51:55,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:51:55,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-06 18:51:55,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:55,711 INFO L225 Difference]: With dead ends: 124 [2021-12-06 18:51:55,711 INFO L226 Difference]: Without dead ends: 120 [2021-12-06 18:51:55,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:51:55,715 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 103 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:55,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 244 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:55,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-12-06 18:51:55,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2021-12-06 18:51:55,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 101 states have (on average 1.5940594059405941) internal successors, (161), 111 states have internal predecessors, (161), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 18:51:55,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 179 transitions. [2021-12-06 18:51:55,753 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 179 transitions. Word has length 8 [2021-12-06 18:51:55,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:55,754 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 179 transitions. [2021-12-06 18:51:55,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:51:55,754 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 179 transitions. [2021-12-06 18:51:55,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-06 18:51:55,755 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:55,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:51:55,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:51:55,755 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:55,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:55,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1449477596, now seen corresponding path program 1 times [2021-12-06 18:51:55,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:55,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633969598] [2021-12-06 18:51:55,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:55,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:55,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:55,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:55,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633969598] [2021-12-06 18:51:55,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633969598] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:55,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:55,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:51:55,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129740762] [2021-12-06 18:51:55,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:55,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:51:55,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:55,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:51:55,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:51:55,814 INFO L87 Difference]: Start difference. First operand 118 states and 179 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:51:55,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:55,830 INFO L93 Difference]: Finished difference Result 118 states and 178 transitions. [2021-12-06 18:51:55,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:51:55,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-06 18:51:55,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:55,833 INFO L225 Difference]: With dead ends: 118 [2021-12-06 18:51:55,833 INFO L226 Difference]: Without dead ends: 118 [2021-12-06 18:51:55,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:51:55,835 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 124 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:55,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 225 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:55,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-12-06 18:51:55,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-12-06 18:51:55,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 101 states have (on average 1.5841584158415842) internal successors, (160), 111 states have internal predecessors, (160), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 18:51:55,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 178 transitions. [2021-12-06 18:51:55,849 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 178 transitions. Word has length 10 [2021-12-06 18:51:55,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:55,850 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 178 transitions. [2021-12-06 18:51:55,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:51:55,850 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 178 transitions. [2021-12-06 18:51:55,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 18:51:55,850 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:55,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:51:55,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:51:55,851 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:55,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:55,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1378319021, now seen corresponding path program 1 times [2021-12-06 18:51:55,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:55,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976138329] [2021-12-06 18:51:55,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:55,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:55,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:55,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:55,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976138329] [2021-12-06 18:51:55,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976138329] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:55,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:55,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:51:55,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866398384] [2021-12-06 18:51:55,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:55,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:51:55,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:55,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:51:55,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:51:55,892 INFO L87 Difference]: Start difference. First operand 118 states and 178 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:51:55,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:55,922 INFO L93 Difference]: Finished difference Result 117 states and 177 transitions. [2021-12-06 18:51:55,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:51:55,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-06 18:51:55,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:55,924 INFO L225 Difference]: With dead ends: 117 [2021-12-06 18:51:55,924 INFO L226 Difference]: Without dead ends: 111 [2021-12-06 18:51:55,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:51:55,926 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 121 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:55,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 206 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:55,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-12-06 18:51:55,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-12-06 18:51:55,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 95 states have (on average 1.5052631578947369) internal successors, (143), 104 states have internal predecessors, (143), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 18:51:55,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 161 transitions. [2021-12-06 18:51:55,937 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 161 transitions. Word has length 12 [2021-12-06 18:51:55,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:55,937 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 161 transitions. [2021-12-06 18:51:55,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:51:55,937 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 161 transitions. [2021-12-06 18:51:55,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-06 18:51:55,938 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:55,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:51:55,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 18:51:55,939 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:55,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:55,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1664018970, now seen corresponding path program 1 times [2021-12-06 18:51:55,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:55,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248445592] [2021-12-06 18:51:55,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:55,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:55,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:55,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:55,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248445592] [2021-12-06 18:51:55,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248445592] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:55,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:55,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:51:55,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661007806] [2021-12-06 18:51:55,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:55,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:51:55,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:55,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:51:55,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:51:55,992 INFO L87 Difference]: Start difference. First operand 111 states and 161 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:51:56,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:56,051 INFO L93 Difference]: Finished difference Result 157 states and 219 transitions. [2021-12-06 18:51:56,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:51:56,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-06 18:51:56,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:56,053 INFO L225 Difference]: With dead ends: 157 [2021-12-06 18:51:56,053 INFO L226 Difference]: Without dead ends: 156 [2021-12-06 18:51:56,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:51:56,055 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 112 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:56,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 237 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:56,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-12-06 18:51:56,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 143. [2021-12-06 18:51:56,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 130 states have (on average 1.4230769230769231) internal successors, (185), 131 states have internal predecessors, (185), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 8 states have call predecessors, (8), 4 states have call successors, (8) [2021-12-06 18:51:56,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 203 transitions. [2021-12-06 18:51:56,070 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 203 transitions. Word has length 16 [2021-12-06 18:51:56,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:56,070 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 203 transitions. [2021-12-06 18:51:56,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:51:56,070 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 203 transitions. [2021-12-06 18:51:56,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-06 18:51:56,071 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:56,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:51:56,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 18:51:56,072 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:56,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:56,072 INFO L85 PathProgramCache]: Analyzing trace with hash -45143888, now seen corresponding path program 1 times [2021-12-06 18:51:56,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:56,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227472638] [2021-12-06 18:51:56,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:56,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:56,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:56,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:56,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227472638] [2021-12-06 18:51:56,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227472638] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:56,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:56,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:51:56,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151045975] [2021-12-06 18:51:56,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:56,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:51:56,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:56,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:51:56,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:51:56,116 INFO L87 Difference]: Start difference. First operand 143 states and 203 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:51:56,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:56,129 INFO L93 Difference]: Finished difference Result 198 states and 275 transitions. [2021-12-06 18:51:56,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:51:56,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-06 18:51:56,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:56,131 INFO L225 Difference]: With dead ends: 198 [2021-12-06 18:51:56,132 INFO L226 Difference]: Without dead ends: 198 [2021-12-06 18:51:56,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:51:56,133 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 128 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:56,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 222 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:56,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-12-06 18:51:56,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 154. [2021-12-06 18:51:56,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 141 states have (on average 1.4113475177304964) internal successors, (199), 142 states have internal predecessors, (199), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-06 18:51:56,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 216 transitions. [2021-12-06 18:51:56,146 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 216 transitions. Word has length 17 [2021-12-06 18:51:56,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:56,147 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 216 transitions. [2021-12-06 18:51:56,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:51:56,147 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 216 transitions. [2021-12-06 18:51:56,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-06 18:51:56,149 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:56,149 INFO L514 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] [2021-12-06 18:51:56,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 18:51:56,149 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:56,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:56,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1029494523, now seen corresponding path program 1 times [2021-12-06 18:51:56,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:56,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97286830] [2021-12-06 18:51:56,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:56,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:56,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:56,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:56,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97286830] [2021-12-06 18:51:56,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97286830] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:56,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:56,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:51:56,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353547440] [2021-12-06 18:51:56,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:56,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:51:56,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:56,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:51:56,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:51:56,198 INFO L87 Difference]: Start difference. First operand 154 states and 216 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:51:56,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:56,236 INFO L93 Difference]: Finished difference Result 154 states and 215 transitions. [2021-12-06 18:51:56,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:51:56,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-12-06 18:51:56,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:56,239 INFO L225 Difference]: With dead ends: 154 [2021-12-06 18:51:56,239 INFO L226 Difference]: Without dead ends: 154 [2021-12-06 18:51:56,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:51:56,241 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 10 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:56,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 262 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:56,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-12-06 18:51:56,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-12-06 18:51:56,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 141 states have (on average 1.4042553191489362) internal successors, (198), 142 states have internal predecessors, (198), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-06 18:51:56,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 215 transitions. [2021-12-06 18:51:56,250 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 215 transitions. Word has length 27 [2021-12-06 18:51:56,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:56,251 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 215 transitions. [2021-12-06 18:51:56,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:51:56,251 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 215 transitions. [2021-12-06 18:51:56,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-06 18:51:56,253 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:56,253 INFO L514 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] [2021-12-06 18:51:56,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 18:51:56,254 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:56,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:56,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1061957582, now seen corresponding path program 1 times [2021-12-06 18:51:56,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:56,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85762253] [2021-12-06 18:51:56,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:56,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:56,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:56,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:56,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85762253] [2021-12-06 18:51:56,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85762253] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:56,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:56,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:51:56,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748857201] [2021-12-06 18:51:56,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:56,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:51:56,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:56,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:51:56,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:51:56,300 INFO L87 Difference]: Start difference. First operand 154 states and 215 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:51:56,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:56,327 INFO L93 Difference]: Finished difference Result 152 states and 211 transitions. [2021-12-06 18:51:56,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:51:56,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-12-06 18:51:56,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:56,329 INFO L225 Difference]: With dead ends: 152 [2021-12-06 18:51:56,330 INFO L226 Difference]: Without dead ends: 152 [2021-12-06 18:51:56,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:51:56,331 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 5 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:56,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 269 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:56,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-12-06 18:51:56,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2021-12-06 18:51:56,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 140 states have (on average 1.3928571428571428) internal successors, (195), 140 states have internal predecessors, (195), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (9), 8 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-06 18:51:56,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 211 transitions. [2021-12-06 18:51:56,338 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 211 transitions. Word has length 31 [2021-12-06 18:51:56,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:56,339 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 211 transitions. [2021-12-06 18:51:56,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:51:56,339 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 211 transitions. [2021-12-06 18:51:56,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-06 18:51:56,340 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:56,340 INFO L514 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] [2021-12-06 18:51:56,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 18:51:56,341 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:56,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:56,341 INFO L85 PathProgramCache]: Analyzing trace with hash -325305154, now seen corresponding path program 1 times [2021-12-06 18:51:56,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:56,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683559901] [2021-12-06 18:51:56,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:56,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:56,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:51:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:56,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:56,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:56,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683559901] [2021-12-06 18:51:56,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683559901] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:56,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:56,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:51:56,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818396233] [2021-12-06 18:51:56,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:56,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:51:56,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:56,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:51:56,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:51:56,398 INFO L87 Difference]: Start difference. First operand 152 states and 211 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:56,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:56,499 INFO L93 Difference]: Finished difference Result 161 states and 219 transitions. [2021-12-06 18:51:56,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:51:56,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-12-06 18:51:56,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:56,501 INFO L225 Difference]: With dead ends: 161 [2021-12-06 18:51:56,501 INFO L226 Difference]: Without dead ends: 161 [2021-12-06 18:51:56,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:51:56,502 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 293 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:56,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 480 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:51:56,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-12-06 18:51:56,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 145. [2021-12-06 18:51:56,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 133 states have (on average 1.3909774436090225) internal successors, (185), 133 states have internal predecessors, (185), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 8 states have call predecessors, (8), 4 states have call successors, (8) [2021-12-06 18:51:56,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 200 transitions. [2021-12-06 18:51:56,510 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 200 transitions. Word has length 33 [2021-12-06 18:51:56,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:56,510 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 200 transitions. [2021-12-06 18:51:56,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:56,510 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 200 transitions. [2021-12-06 18:51:56,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-06 18:51:56,512 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:56,512 INFO L514 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] [2021-12-06 18:51:56,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 18:51:56,512 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:56,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:56,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1305656279, now seen corresponding path program 1 times [2021-12-06 18:51:56,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:56,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315087941] [2021-12-06 18:51:56,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:56,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:56,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:51:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:56,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:56,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:56,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315087941] [2021-12-06 18:51:56,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315087941] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:56,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:56,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:51:56,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447724871] [2021-12-06 18:51:56,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:56,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:51:56,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:56,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:51:56,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:51:56,594 INFO L87 Difference]: Start difference. First operand 145 states and 200 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:56,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:56,708 INFO L93 Difference]: Finished difference Result 145 states and 199 transitions. [2021-12-06 18:51:56,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 18:51:56,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-12-06 18:51:56,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:56,710 INFO L225 Difference]: With dead ends: 145 [2021-12-06 18:51:56,710 INFO L226 Difference]: Without dead ends: 145 [2021-12-06 18:51:56,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:51:56,711 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 160 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:56,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 465 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:51:56,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-12-06 18:51:56,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2021-12-06 18:51:56,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 133 states have (on average 1.3834586466165413) internal successors, (184), 133 states have internal predecessors, (184), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 8 states have call predecessors, (8), 4 states have call successors, (8) [2021-12-06 18:51:56,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 199 transitions. [2021-12-06 18:51:56,718 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 199 transitions. Word has length 37 [2021-12-06 18:51:56,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:56,718 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 199 transitions. [2021-12-06 18:51:56,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:56,719 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 199 transitions. [2021-12-06 18:51:56,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-06 18:51:56,720 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:56,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:51:56,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 18:51:56,721 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:56,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:56,721 INFO L85 PathProgramCache]: Analyzing trace with hash -932565549, now seen corresponding path program 1 times [2021-12-06 18:51:56,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:56,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519056192] [2021-12-06 18:51:56,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:56,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:56,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:51:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:56,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:56,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:56,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519056192] [2021-12-06 18:51:56,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519056192] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:56,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:56,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:51:56,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789712785] [2021-12-06 18:51:56,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:56,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:51:56,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:56,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:51:56,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:51:56,778 INFO L87 Difference]: Start difference. First operand 145 states and 199 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:56,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:56,900 INFO L93 Difference]: Finished difference Result 157 states and 212 transitions. [2021-12-06 18:51:56,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 18:51:56,901 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2021-12-06 18:51:56,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:56,902 INFO L225 Difference]: With dead ends: 157 [2021-12-06 18:51:56,902 INFO L226 Difference]: Without dead ends: 157 [2021-12-06 18:51:56,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-12-06 18:51:56,903 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 196 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:56,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 585 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:51:56,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-12-06 18:51:56,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 145. [2021-12-06 18:51:56,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 133 states have (on average 1.3759398496240602) internal successors, (183), 133 states have internal predecessors, (183), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 8 states have call predecessors, (8), 4 states have call successors, (8) [2021-12-06 18:51:56,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 198 transitions. [2021-12-06 18:51:56,910 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 198 transitions. Word has length 38 [2021-12-06 18:51:56,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:56,910 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 198 transitions. [2021-12-06 18:51:56,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:56,911 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 198 transitions. [2021-12-06 18:51:56,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-06 18:51:56,912 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:56,912 INFO L514 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] [2021-12-06 18:51:56,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 18:51:56,912 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:56,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:56,913 INFO L85 PathProgramCache]: Analyzing trace with hash -602315620, now seen corresponding path program 1 times [2021-12-06 18:51:56,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:56,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063310134] [2021-12-06 18:51:56,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:56,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:56,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:51:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:56,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:56,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:56,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063310134] [2021-12-06 18:51:56,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063310134] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:56,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:56,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:51:56,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699620536] [2021-12-06 18:51:56,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:56,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:51:56,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:56,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:51:56,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:51:56,958 INFO L87 Difference]: Start difference. First operand 145 states and 198 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:57,006 INFO L93 Difference]: Finished difference Result 161 states and 219 transitions. [2021-12-06 18:51:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:51:57,006 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-12-06 18:51:57,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:57,007 INFO L225 Difference]: With dead ends: 161 [2021-12-06 18:51:57,007 INFO L226 Difference]: Without dead ends: 161 [2021-12-06 18:51:57,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:51:57,008 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 21 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:57,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 376 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:57,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-12-06 18:51:57,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 151. [2021-12-06 18:51:57,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 139 states have (on average 1.3669064748201438) internal successors, (190), 139 states have internal predecessors, (190), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 8 states have call predecessors, (8), 4 states have call successors, (8) [2021-12-06 18:51:57,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 205 transitions. [2021-12-06 18:51:57,013 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 205 transitions. Word has length 39 [2021-12-06 18:51:57,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:57,014 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 205 transitions. [2021-12-06 18:51:57,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,014 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 205 transitions. [2021-12-06 18:51:57,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-06 18:51:57,014 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:57,014 INFO L514 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] [2021-12-06 18:51:57,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 18:51:57,015 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:57,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:57,015 INFO L85 PathProgramCache]: Analyzing trace with hash 98748958, now seen corresponding path program 1 times [2021-12-06 18:51:57,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:57,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261446899] [2021-12-06 18:51:57,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:57,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:51:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:57,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:57,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261446899] [2021-12-06 18:51:57,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261446899] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:57,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:57,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:51:57,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806525460] [2021-12-06 18:51:57,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:57,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:51:57,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:57,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:51:57,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:51:57,064 INFO L87 Difference]: Start difference. First operand 151 states and 205 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:57,128 INFO L93 Difference]: Finished difference Result 187 states and 254 transitions. [2021-12-06 18:51:57,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:51:57,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-12-06 18:51:57,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:57,130 INFO L225 Difference]: With dead ends: 187 [2021-12-06 18:51:57,130 INFO L226 Difference]: Without dead ends: 187 [2021-12-06 18:51:57,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:51:57,131 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 46 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:57,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 860 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:57,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-12-06 18:51:57,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 156. [2021-12-06 18:51:57,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 143 states have (on average 1.3566433566433567) internal successors, (194), 143 states have internal predecessors, (194), 7 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (9), 9 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-06 18:51:57,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 210 transitions. [2021-12-06 18:51:57,137 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 210 transitions. Word has length 39 [2021-12-06 18:51:57,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:57,138 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 210 transitions. [2021-12-06 18:51:57,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,138 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 210 transitions. [2021-12-06 18:51:57,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-06 18:51:57,138 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:57,139 INFO L514 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] [2021-12-06 18:51:57,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 18:51:57,139 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:57,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:57,139 INFO L85 PathProgramCache]: Analyzing trace with hash -617177932, now seen corresponding path program 1 times [2021-12-06 18:51:57,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:57,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359836251] [2021-12-06 18:51:57,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:57,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:57,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:51:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:57,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:57,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359836251] [2021-12-06 18:51:57,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359836251] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:57,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:57,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:51:57,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840813184] [2021-12-06 18:51:57,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:57,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:51:57,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:57,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:51:57,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:51:57,177 INFO L87 Difference]: Start difference. First operand 156 states and 210 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:57,222 INFO L93 Difference]: Finished difference Result 172 states and 231 transitions. [2021-12-06 18:51:57,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:51:57,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-12-06 18:51:57,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:57,224 INFO L225 Difference]: With dead ends: 172 [2021-12-06 18:51:57,224 INFO L226 Difference]: Without dead ends: 172 [2021-12-06 18:51:57,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:51:57,225 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 18 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:57,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 393 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:57,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-12-06 18:51:57,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 159. [2021-12-06 18:51:57,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 146 states have (on average 1.3493150684931507) internal successors, (197), 146 states have internal predecessors, (197), 7 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (9), 9 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-06 18:51:57,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 213 transitions. [2021-12-06 18:51:57,231 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 213 transitions. Word has length 40 [2021-12-06 18:51:57,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:57,231 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 213 transitions. [2021-12-06 18:51:57,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,231 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 213 transitions. [2021-12-06 18:51:57,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-06 18:51:57,232 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:57,232 INFO L514 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] [2021-12-06 18:51:57,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 18:51:57,232 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:57,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:57,232 INFO L85 PathProgramCache]: Analyzing trace with hash 83886646, now seen corresponding path program 1 times [2021-12-06 18:51:57,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:57,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626194327] [2021-12-06 18:51:57,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:57,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:51:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:57,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:57,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626194327] [2021-12-06 18:51:57,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626194327] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:57,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:57,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:51:57,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794026388] [2021-12-06 18:51:57,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:57,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:51:57,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:57,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:51:57,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:51:57,263 INFO L87 Difference]: Start difference. First operand 159 states and 213 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:57,312 INFO L93 Difference]: Finished difference Result 187 states and 250 transitions. [2021-12-06 18:51:57,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:51:57,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-12-06 18:51:57,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:57,314 INFO L225 Difference]: With dead ends: 187 [2021-12-06 18:51:57,314 INFO L226 Difference]: Without dead ends: 187 [2021-12-06 18:51:57,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:51:57,315 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 40 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:57,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 388 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:57,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-12-06 18:51:57,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 163. [2021-12-06 18:51:57,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 150 states have (on average 1.3533333333333333) internal successors, (203), 150 states have internal predecessors, (203), 7 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (9), 9 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-06 18:51:57,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 219 transitions. [2021-12-06 18:51:57,322 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 219 transitions. Word has length 40 [2021-12-06 18:51:57,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:57,322 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 219 transitions. [2021-12-06 18:51:57,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,322 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 219 transitions. [2021-12-06 18:51:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-06 18:51:57,323 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:57,323 INFO L514 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] [2021-12-06 18:51:57,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 18:51:57,324 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:57,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:57,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1694405227, now seen corresponding path program 1 times [2021-12-06 18:51:57,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:57,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915618053] [2021-12-06 18:51:57,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:57,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:51:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:57,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:57,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915618053] [2021-12-06 18:51:57,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915618053] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:57,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:57,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:51:57,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083443218] [2021-12-06 18:51:57,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:57,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:51:57,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:57,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:51:57,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:51:57,384 INFO L87 Difference]: Start difference. First operand 163 states and 219 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:57,477 INFO L93 Difference]: Finished difference Result 206 states and 277 transitions. [2021-12-06 18:51:57,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:51:57,477 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-12-06 18:51:57,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:57,478 INFO L225 Difference]: With dead ends: 206 [2021-12-06 18:51:57,478 INFO L226 Difference]: Without dead ends: 206 [2021-12-06 18:51:57,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:51:57,479 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 57 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:57,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 986 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:51:57,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-12-06 18:51:57,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 180. [2021-12-06 18:51:57,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 166 states have (on average 1.355421686746988) internal successors, (225), 166 states have internal predecessors, (225), 7 states have call successors, (7), 3 states have call predecessors, (7), 6 states have return successors, (10), 10 states have call predecessors, (10), 4 states have call successors, (10) [2021-12-06 18:51:57,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 242 transitions. [2021-12-06 18:51:57,487 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 242 transitions. Word has length 40 [2021-12-06 18:51:57,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:57,487 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 242 transitions. [2021-12-06 18:51:57,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,488 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 242 transitions. [2021-12-06 18:51:57,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-06 18:51:57,488 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:57,488 INFO L514 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] [2021-12-06 18:51:57,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 18:51:57,489 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:57,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:57,489 INFO L85 PathProgramCache]: Analyzing trace with hash -2108481298, now seen corresponding path program 1 times [2021-12-06 18:51:57,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:57,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904681715] [2021-12-06 18:51:57,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:57,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:51:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:57,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:57,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904681715] [2021-12-06 18:51:57,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904681715] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:57,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:57,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:51:57,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084319600] [2021-12-06 18:51:57,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:57,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:51:57,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:57,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:51:57,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:51:57,530 INFO L87 Difference]: Start difference. First operand 180 states and 242 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:57,583 INFO L93 Difference]: Finished difference Result 176 states and 235 transitions. [2021-12-06 18:51:57,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:51:57,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-12-06 18:51:57,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:57,584 INFO L225 Difference]: With dead ends: 176 [2021-12-06 18:51:57,584 INFO L226 Difference]: Without dead ends: 76 [2021-12-06 18:51:57,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:51:57,585 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 250 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:57,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 243 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:57,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-12-06 18:51:57,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 67. [2021-12-06 18:51:57,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 61 states have (on average 1.1311475409836065) internal successors, (69), 62 states have internal predecessors, (69), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 18:51:57,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2021-12-06 18:51:57,589 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 40 [2021-12-06 18:51:57,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:57,589 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2021-12-06 18:51:57,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,589 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2021-12-06 18:51:57,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-06 18:51:57,590 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:57,590 INFO L514 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] [2021-12-06 18:51:57,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 18:51:57,590 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:57,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:57,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1932145095, now seen corresponding path program 1 times [2021-12-06 18:51:57,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:57,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572387746] [2021-12-06 18:51:57,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:57,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:51:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:57,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:57,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572387746] [2021-12-06 18:51:57,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572387746] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:57,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:57,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:51:57,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971334424] [2021-12-06 18:51:57,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:57,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:51:57,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:57,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:51:57,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:51:57,659 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:57,704 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2021-12-06 18:51:57,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 18:51:57,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-12-06 18:51:57,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:57,705 INFO L225 Difference]: With dead ends: 64 [2021-12-06 18:51:57,705 INFO L226 Difference]: Without dead ends: 54 [2021-12-06 18:51:57,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:51:57,706 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 84 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:57,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 110 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:57,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-12-06 18:51:57,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-12-06 18:51:57,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 50 states have internal predecessors, (55), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2021-12-06 18:51:57,709 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 41 [2021-12-06 18:51:57,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:57,709 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2021-12-06 18:51:57,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,710 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2021-12-06 18:51:57,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-06 18:51:57,710 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:57,710 INFO L514 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] [2021-12-06 18:51:57,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 18:51:57,711 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:57,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:57,711 INFO L85 PathProgramCache]: Analyzing trace with hash -196275269, now seen corresponding path program 1 times [2021-12-06 18:51:57,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:57,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992922365] [2021-12-06 18:51:57,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:57,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:51:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:57,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:57,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992922365] [2021-12-06 18:51:57,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992922365] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:57,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:57,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:51:57,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712361753] [2021-12-06 18:51:57,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:57,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:51:57,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:57,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:51:57,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:51:57,751 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:57,770 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2021-12-06 18:51:57,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:51:57,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-12-06 18:51:57,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:57,771 INFO L225 Difference]: With dead ends: 51 [2021-12-06 18:51:57,771 INFO L226 Difference]: Without dead ends: 50 [2021-12-06 18:51:57,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:51:57,772 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 19 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:57,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 104 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:57,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-12-06 18:51:57,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-12-06 18:51:57,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 46 states have (on average 1.0869565217391304) internal successors, (50), 46 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2021-12-06 18:51:57,775 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 41 [2021-12-06 18:51:57,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:57,775 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2021-12-06 18:51:57,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,775 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2021-12-06 18:51:57,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-06 18:51:57,776 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:57,776 INFO L514 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] [2021-12-06 18:51:57,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 18:51:57,776 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:57,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:57,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1222794270, now seen corresponding path program 1 times [2021-12-06 18:51:57,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:57,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022891230] [2021-12-06 18:51:57,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:57,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:51:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:57,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:57,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022891230] [2021-12-06 18:51:57,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022891230] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:57,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:57,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:51:57,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881099948] [2021-12-06 18:51:57,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:57,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:51:57,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:57,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:51:57,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:51:57,816 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:57,842 INFO L93 Difference]: Finished difference Result 91 states and 96 transitions. [2021-12-06 18:51:57,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:51:57,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-12-06 18:51:57,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:57,843 INFO L225 Difference]: With dead ends: 91 [2021-12-06 18:51:57,843 INFO L226 Difference]: Without dead ends: 91 [2021-12-06 18:51:57,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:51:57,844 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 30 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:57,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 134 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:57,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-12-06 18:51:57,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2021-12-06 18:51:57,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 84 states have (on average 1.0714285714285714) internal successors, (90), 84 states have internal predecessors, (90), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 18:51:57,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2021-12-06 18:51:57,848 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 41 [2021-12-06 18:51:57,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:57,848 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2021-12-06 18:51:57,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,848 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2021-12-06 18:51:57,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-06 18:51:57,849 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:57,849 INFO L514 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] [2021-12-06 18:51:57,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 18:51:57,849 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:57,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:57,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1220947228, now seen corresponding path program 1 times [2021-12-06 18:51:57,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:57,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912490537] [2021-12-06 18:51:57,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:57,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:51:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:57,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:57,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912490537] [2021-12-06 18:51:57,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912490537] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:57,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:57,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:51:57,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376426185] [2021-12-06 18:51:57,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:57,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:51:57,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:57,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:51:57,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:51:57,921 INFO L87 Difference]: Start difference. First operand 90 states and 95 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:57,951 INFO L93 Difference]: Finished difference Result 90 states and 93 transitions. [2021-12-06 18:51:57,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 18:51:57,951 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-12-06 18:51:57,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:57,952 INFO L225 Difference]: With dead ends: 90 [2021-12-06 18:51:57,952 INFO L226 Difference]: Without dead ends: 90 [2021-12-06 18:51:57,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:51:57,953 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 19 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:57,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 245 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:57,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-12-06 18:51:57,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-12-06 18:51:57,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 84 states have (on average 1.0476190476190477) internal successors, (88), 84 states have internal predecessors, (88), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 18:51:57,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 93 transitions. [2021-12-06 18:51:57,957 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 93 transitions. Word has length 41 [2021-12-06 18:51:57,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:57,957 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 93 transitions. [2021-12-06 18:51:57,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:57,957 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 93 transitions. [2021-12-06 18:51:57,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 18:51:57,958 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:51:57,958 INFO L514 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] [2021-12-06 18:51:57,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 18:51:57,958 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 18:51:57,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:51:57,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1413586424, now seen corresponding path program 1 times [2021-12-06 18:51:57,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:51:57,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784742368] [2021-12-06 18:51:57,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:51:57,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:51:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:51:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:51:57,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:51:57,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:51:57,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784742368] [2021-12-06 18:51:57,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784742368] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:51:57,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:51:57,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:51:57,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319739504] [2021-12-06 18:51:57,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:51:57,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:51:57,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:51:57,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:51:57,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:51:57,999 INFO L87 Difference]: Start difference. First operand 90 states and 93 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:58,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:51:58,012 INFO L93 Difference]: Finished difference Result 67 states and 66 transitions. [2021-12-06 18:51:58,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 18:51:58,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2021-12-06 18:51:58,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:51:58,013 INFO L225 Difference]: With dead ends: 67 [2021-12-06 18:51:58,013 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 18:51:58,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:51:58,015 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 1 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:51:58,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 81 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:51:58,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 18:51:58,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 18:51:58,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:51:58,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 18:51:58,016 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2021-12-06 18:51:58,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:51:58,016 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 18:51:58,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:51:58,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 18:51:58,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 18:51:58,019 INFO L764 garLoopResultBuilder]: Registering result SAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2021-12-06 18:51:58,019 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2021-12-06 18:51:58,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 18:51:58,023 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:51:58,024 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 18:51:58,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:51:58 BoogieIcfgContainer [2021-12-06 18:51:58,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 18:51:58,028 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 18:51:58,028 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 18:51:58,028 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 18:51:58,028 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:51:55" (3/4) ... [2021-12-06 18:51:58,031 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 18:51:58,037 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure errorFn [2021-12-06 18:51:58,038 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCallDriver [2021-12-06 18:51:58,048 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-12-06 18:51:58,049 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-06 18:51:58,050 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-06 18:51:58,050 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 18:51:58,120 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 18:51:58,120 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 18:51:58,120 INFO L158 Benchmark]: Toolchain (without parser) took 3456.54ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 55.6MB in the end (delta: 20.0MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2021-12-06 18:51:58,121 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 92.9MB in the end (delta: 243.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:51:58,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.67ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 61.0MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 18:51:58,121 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.80ms. Allocated memory is still 117.4MB. Free memory was 61.0MB in the beginning and 58.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:51:58,121 INFO L158 Benchmark]: Boogie Preprocessor took 24.74ms. Allocated memory is still 117.4MB. Free memory was 58.2MB in the beginning and 56.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:51:58,122 INFO L158 Benchmark]: RCFGBuilder took 450.73ms. Allocated memory is still 117.4MB. Free memory was 56.2MB in the beginning and 76.0MB in the end (delta: -19.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 18:51:58,122 INFO L158 Benchmark]: TraceAbstraction took 2607.02ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 64.0MB in the end (delta: 11.5MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2021-12-06 18:51:58,122 INFO L158 Benchmark]: Witness Printer took 92.35ms. Allocated memory is still 117.4MB. Free memory was 64.0MB in the beginning and 55.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 18:51:58,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 92.9MB in the end (delta: 243.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.67ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 61.0MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.80ms. Allocated memory is still 117.4MB. Free memory was 61.0MB in the beginning and 58.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.74ms. Allocated memory is still 117.4MB. Free memory was 58.2MB in the beginning and 56.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 450.73ms. Allocated memory is still 117.4MB. Free memory was 56.2MB in the beginning and 76.0MB in the end (delta: -19.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2607.02ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 64.0MB in the end (delta: 11.5MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * Witness Printer took 92.35ms. Allocated memory is still 117.4MB. Free memory was 64.0MB in the beginning and 55.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 581]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 288]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 122 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1854 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1837 mSDsluCounter, 7115 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4341 mSDsCounter, 173 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1201 IncrementalHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 173 mSolverCounterUnsat, 2774 mSDtfsCounter, 1201 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=15, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 21 MinimizatonAttempts, 201 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 679 NumberOfCodeBlocks, 679 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 658 ConstructedInterpolants, 0 QuantifiedInterpolants, 1522 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-06 18:51:58,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d8a9e96-2fe0-4a7a-ac0c-abb04bd02645/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE