./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_53bac4d8-68ef-4db0-9ffb-17339cad7a77/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_53bac4d8-68ef-4db0-9ffb-17339cad7a77/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_53bac4d8-68ef-4db0-9ffb-17339cad7a77/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_53bac4d8-68ef-4db0-9ffb-17339cad7a77/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_53bac4d8-68ef-4db0-9ffb-17339cad7a77/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_53bac4d8-68ef-4db0-9ffb-17339cad7a77/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fb0d163b15d3c265ca05b2b9dcc84c96a983bffe .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:14:48,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:14:48,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:14:48,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:14:48,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:14:48,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:14:48,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:14:48,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:14:48,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:14:48,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:14:48,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:14:48,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:14:48,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:14:48,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:14:48,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:14:48,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:14:48,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:14:48,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:14:48,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:14:48,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:14:48,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:14:48,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:14:48,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:14:48,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:14:48,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:14:48,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:14:48,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:14:48,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:14:48,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:14:48,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:14:48,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:14:48,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:14:48,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:14:48,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:14:48,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:14:48,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:14:48,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:14:48,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:14:48,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:14:48,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:14:48,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:14:48,833 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_53bac4d8-68ef-4db0-9ffb-17339cad7a77/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-28 03:14:48,857 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:14:48,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:14:48,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:14:48,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:14:48,859 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:14:48,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:14:48,859 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:14:48,860 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:14:48,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:14:48,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:14:48,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:14:48,860 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:14:48,860 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:14:48,861 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:14:48,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:14:48,861 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:14:48,861 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:14:48,861 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:14:48,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:14:48,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:14:48,862 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:14:48,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:14:48,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:14:48,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:14:48,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:14:48,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:14:48,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:14:48,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:14:48,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_53bac4d8-68ef-4db0-9ffb-17339cad7a77/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_53bac4d8-68ef-4db0-9ffb-17339cad7a77/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb0d163b15d3c265ca05b2b9dcc84c96a983bffe [2020-11-28 03:14:49,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:14:49,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:14:49,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:14:49,172 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:14:49,175 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:14:49,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_53bac4d8-68ef-4db0-9ffb-17339cad7a77/bin/uautomizer/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-11-28 03:14:49,256 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53bac4d8-68ef-4db0-9ffb-17339cad7a77/bin/uautomizer/data/6516965ee/b5978b2625054342a30b1548c69eaea1/FLAG997b79cd9 [2020-11-28 03:14:49,754 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:14:49,755 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_53bac4d8-68ef-4db0-9ffb-17339cad7a77/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-11-28 03:14:49,765 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53bac4d8-68ef-4db0-9ffb-17339cad7a77/bin/uautomizer/data/6516965ee/b5978b2625054342a30b1548c69eaea1/FLAG997b79cd9 [2020-11-28 03:14:50,100 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_53bac4d8-68ef-4db0-9ffb-17339cad7a77/bin/uautomizer/data/6516965ee/b5978b2625054342a30b1548c69eaea1 [2020-11-28 03:14:50,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:14:50,104 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:14:50,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:14:50,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:14:50,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:14:50,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:50" (1/1) ... [2020-11-28 03:14:50,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e0a8270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:50, skipping insertion in model container [2020-11-28 03:14:50,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:50" (1/1) ... [2020-11-28 03:14:50,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:14:50,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:14:50,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:14:50,439 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:14:50,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:14:50,525 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:14:50,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:50 WrapperNode [2020-11-28 03:14:50,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:14:50,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:14:50,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:14:50,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:14:50,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:50" (1/1) ... [2020-11-28 03:14:50,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:50" (1/1) ... [2020-11-28 03:14:50,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:50" (1/1) ... [2020-11-28 03:14:50,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:50" (1/1) ... [2020-11-28 03:14:50,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:50" (1/1) ... [2020-11-28 03:14:50,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:50" (1/1) ... [2020-11-28 03:14:50,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:50" (1/1) ... [2020-11-28 03:14:50,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:14:50,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:14:50,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:14:50,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:14:50,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53bac4d8-68ef-4db0-9ffb-17339cad7a77/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:14:50,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:14:50,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:14:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-28 03:14:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-11-28 03:14:50,730 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-11-28 03:14:50,730 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-11-28 03:14:50,730 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:14:50,731 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-11-28 03:14:50,731 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-11-28 03:14:50,731 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-11-28 03:14:50,732 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-11-28 03:14:50,732 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-11-28 03:14:50,733 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-11-28 03:14:50,733 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-11-28 03:14:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 03:14:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-28 03:14:50,735 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-28 03:14:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:14:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-11-28 03:14:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:14:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-11-28 03:14:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-11-28 03:14:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-11-28 03:14:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-11-28 03:14:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-11-28 03:14:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-11-28 03:14:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-11-28 03:14:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-11-28 03:14:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-11-28 03:14:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-11-28 03:14:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:14:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-11-28 03:14:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:14:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:14:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:14:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:14:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:14:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:14:51,057 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:14:51,177 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2020-11-28 03:14:51,177 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2020-11-28 03:14:51,179 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:14:51,255 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume false; [2020-11-28 03:14:51,255 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !false; [2020-11-28 03:14:51,298 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:14:51,339 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-11-28 03:14:51,340 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-11-28 03:14:51,353 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 03:14:51,484 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-11-28 03:14:51,484 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-11-28 03:14:51,507 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:14:51,508 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-28 03:14:51,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:51 BoogieIcfgContainer [2020-11-28 03:14:51,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:14:51,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:14:51,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:14:51,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:14:51,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:14:50" (1/3) ... [2020-11-28 03:14:51,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69f4b23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:51, skipping insertion in model container [2020-11-28 03:14:51,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:50" (2/3) ... [2020-11-28 03:14:51,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69f4b23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:51, skipping insertion in model container [2020-11-28 03:14:51,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:51" (3/3) ... [2020-11-28 03:14:51,521 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl1.cil.c [2020-11-28 03:14:51,532 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:14:51,536 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 03:14:51,554 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 03:14:51,614 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:14:51,615 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:14:51,615 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:14:51,615 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:14:51,615 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:14:51,630 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:14:51,630 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:14:51,630 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:14:51,660 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-11-28 03:14:51,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 03:14:51,671 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:51,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:51,672 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:14:51,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:51,677 INFO L82 PathProgramCache]: Analyzing trace with hash -805088101, now seen corresponding path program 1 times [2020-11-28 03:14:51,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:51,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627885856] [2020-11-28 03:14:51,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:52,042 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-11-28 03:14:52,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:52,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:14:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:52,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:52,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627885856] [2020-11-28 03:14:52,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:52,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:14:52,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862396841] [2020-11-28 03:14:52,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:14:52,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:52,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:14:52,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:14:52,188 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 4 states. [2020-11-28 03:14:52,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:52,774 INFO L93 Difference]: Finished difference Result 167 states and 237 transitions. [2020-11-28 03:14:52,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:14:52,775 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-28 03:14:52,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:52,786 INFO L225 Difference]: With dead ends: 167 [2020-11-28 03:14:52,786 INFO L226 Difference]: Without dead ends: 158 [2020-11-28 03:14:52,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:14:52,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-11-28 03:14:52,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 141. [2020-11-28 03:14:52,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-28 03:14:52,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 193 transitions. [2020-11-28 03:14:52,881 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 193 transitions. Word has length 15 [2020-11-28 03:14:52,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:52,883 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 193 transitions. [2020-11-28 03:14:52,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:14:52,883 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 193 transitions. [2020-11-28 03:14:52,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 03:14:52,889 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:52,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:52,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:14:52,890 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:14:52,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:52,892 INFO L82 PathProgramCache]: Analyzing trace with hash 663407879, now seen corresponding path program 1 times [2020-11-28 03:14:52,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:52,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314442633] [2020-11-28 03:14:52,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:53,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:53,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:14:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:53,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:53,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314442633] [2020-11-28 03:14:53,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:53,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:14:53,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124954559] [2020-11-28 03:14:53,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:14:53,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:53,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:14:53,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:14:53,208 INFO L87 Difference]: Start difference. First operand 141 states and 193 transitions. Second operand 5 states. [2020-11-28 03:14:53,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:53,899 INFO L93 Difference]: Finished difference Result 158 states and 215 transitions. [2020-11-28 03:14:53,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:14:53,900 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-28 03:14:53,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:53,902 INFO L225 Difference]: With dead ends: 158 [2020-11-28 03:14:53,902 INFO L226 Difference]: Without dead ends: 158 [2020-11-28 03:14:53,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:14:53,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-11-28 03:14:53,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 141. [2020-11-28 03:14:53,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-28 03:14:53,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 191 transitions. [2020-11-28 03:14:53,915 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 191 transitions. Word has length 21 [2020-11-28 03:14:53,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:53,916 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 191 transitions. [2020-11-28 03:14:53,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:14:53,916 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 191 transitions. [2020-11-28 03:14:53,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:14:53,917 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:53,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:53,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:14:53,917 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:14:53,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:53,918 INFO L82 PathProgramCache]: Analyzing trace with hash -529077197, now seen corresponding path program 1 times [2020-11-28 03:14:53,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:53,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877598984] [2020-11-28 03:14:53,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:54,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:54,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:14:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:54,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:14:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:54,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:54,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877598984] [2020-11-28 03:14:54,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:54,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:14:54,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098580012] [2020-11-28 03:14:54,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:14:54,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:54,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:14:54,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:14:54,209 INFO L87 Difference]: Start difference. First operand 141 states and 191 transitions. Second operand 6 states. [2020-11-28 03:14:55,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:55,116 INFO L93 Difference]: Finished difference Result 222 states and 294 transitions. [2020-11-28 03:14:55,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:14:55,117 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-11-28 03:14:55,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:55,120 INFO L225 Difference]: With dead ends: 222 [2020-11-28 03:14:55,120 INFO L226 Difference]: Without dead ends: 221 [2020-11-28 03:14:55,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:14:55,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-11-28 03:14:55,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 196. [2020-11-28 03:14:55,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-11-28 03:14:55,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 260 transitions. [2020-11-28 03:14:55,158 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 260 transitions. Word has length 27 [2020-11-28 03:14:55,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:55,158 INFO L481 AbstractCegarLoop]: Abstraction has 196 states and 260 transitions. [2020-11-28 03:14:55,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:14:55,159 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 260 transitions. [2020-11-28 03:14:55,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-28 03:14:55,160 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:55,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:55,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:14:55,161 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:14:55,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:55,161 INFO L82 PathProgramCache]: Analyzing trace with hash 778367763, now seen corresponding path program 1 times [2020-11-28 03:14:55,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:55,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934344367] [2020-11-28 03:14:55,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:55,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:55,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:14:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:55,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:14:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:55,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:55,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934344367] [2020-11-28 03:14:55,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:55,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:14:55,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259801480] [2020-11-28 03:14:55,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:14:55,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:55,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:14:55,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:14:55,467 INFO L87 Difference]: Start difference. First operand 196 states and 260 transitions. Second operand 6 states. [2020-11-28 03:14:55,607 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-11-28 03:14:56,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:56,296 INFO L93 Difference]: Finished difference Result 256 states and 337 transitions. [2020-11-28 03:14:56,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:14:56,296 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-11-28 03:14:56,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:56,299 INFO L225 Difference]: With dead ends: 256 [2020-11-28 03:14:56,299 INFO L226 Difference]: Without dead ends: 256 [2020-11-28 03:14:56,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:14:56,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-11-28 03:14:56,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 218. [2020-11-28 03:14:56,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-28 03:14:56,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 290 transitions. [2020-11-28 03:14:56,328 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 290 transitions. Word has length 28 [2020-11-28 03:14:56,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:56,328 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 290 transitions. [2020-11-28 03:14:56,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:14:56,328 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 290 transitions. [2020-11-28 03:14:56,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-28 03:14:56,332 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:56,332 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:56,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:14:56,333 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:14:56,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:56,334 INFO L82 PathProgramCache]: Analyzing trace with hash 724282888, now seen corresponding path program 1 times [2020-11-28 03:14:56,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:56,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964991479] [2020-11-28 03:14:56,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:56,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:56,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:14:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:56,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:14:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:56,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:56,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964991479] [2020-11-28 03:14:56,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:56,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 03:14:56,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236789156] [2020-11-28 03:14:56,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:14:56,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:56,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:14:56,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:14:56,614 INFO L87 Difference]: Start difference. First operand 218 states and 290 transitions. Second operand 7 states. [2020-11-28 03:14:57,145 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-28 03:14:57,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:57,728 INFO L93 Difference]: Finished difference Result 218 states and 289 transitions. [2020-11-28 03:14:57,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:14:57,728 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-11-28 03:14:57,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:57,731 INFO L225 Difference]: With dead ends: 218 [2020-11-28 03:14:57,731 INFO L226 Difference]: Without dead ends: 218 [2020-11-28 03:14:57,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:14:57,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-28 03:14:57,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-11-28 03:14:57,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-28 03:14:57,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 289 transitions. [2020-11-28 03:14:57,755 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 289 transitions. Word has length 38 [2020-11-28 03:14:57,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:57,756 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 289 transitions. [2020-11-28 03:14:57,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:14:57,756 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 289 transitions. [2020-11-28 03:14:57,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-28 03:14:57,764 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:57,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:57,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:14:57,765 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:14:57,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:57,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1120438894, now seen corresponding path program 1 times [2020-11-28 03:14:57,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:57,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970614984] [2020-11-28 03:14:57,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:57,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:57,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:14:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:58,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:14:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:58,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-28 03:14:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:58,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:58,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970614984] [2020-11-28 03:14:58,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:58,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-28 03:14:58,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098419584] [2020-11-28 03:14:58,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:14:58,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:58,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:14:58,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:14:58,085 INFO L87 Difference]: Start difference. First operand 218 states and 289 transitions. Second operand 9 states. [2020-11-28 03:14:59,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:59,224 INFO L93 Difference]: Finished difference Result 210 states and 273 transitions. [2020-11-28 03:14:59,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:14:59,225 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 46 [2020-11-28 03:14:59,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:59,227 INFO L225 Difference]: With dead ends: 210 [2020-11-28 03:14:59,227 INFO L226 Difference]: Without dead ends: 210 [2020-11-28 03:14:59,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-11-28 03:14:59,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-11-28 03:14:59,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 191. [2020-11-28 03:14:59,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-11-28 03:14:59,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 251 transitions. [2020-11-28 03:14:59,237 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 251 transitions. Word has length 46 [2020-11-28 03:14:59,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:59,238 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 251 transitions. [2020-11-28 03:14:59,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:14:59,238 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 251 transitions. [2020-11-28 03:14:59,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-28 03:14:59,240 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:59,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:59,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:14:59,241 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:14:59,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:59,242 INFO L82 PathProgramCache]: Analyzing trace with hash -202571997, now seen corresponding path program 1 times [2020-11-28 03:14:59,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:59,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408757756] [2020-11-28 03:14:59,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:59,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:14:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:59,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:14:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:59,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:14:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:59,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-28 03:14:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:59,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:14:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:59,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-11-28 03:14:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:59,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:59,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408757756] [2020-11-28 03:14:59,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:59,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:14:59,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928587541] [2020-11-28 03:14:59,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:14:59,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:59,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:14:59,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:14:59,561 INFO L87 Difference]: Start difference. First operand 191 states and 251 transitions. Second operand 8 states. [2020-11-28 03:15:00,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:00,404 INFO L93 Difference]: Finished difference Result 198 states and 258 transitions. [2020-11-28 03:15:00,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:15:00,404 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-11-28 03:15:00,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:00,406 INFO L225 Difference]: With dead ends: 198 [2020-11-28 03:15:00,406 INFO L226 Difference]: Without dead ends: 198 [2020-11-28 03:15:00,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:15:00,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-11-28 03:15:00,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 189. [2020-11-28 03:15:00,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-11-28 03:15:00,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 247 transitions. [2020-11-28 03:15:00,415 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 247 transitions. Word has length 52 [2020-11-28 03:15:00,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:00,415 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 247 transitions. [2020-11-28 03:15:00,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:15:00,415 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 247 transitions. [2020-11-28 03:15:00,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:15:00,416 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:00,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:00,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:15:00,417 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:15:00,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:00,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1084449432, now seen corresponding path program 1 times [2020-11-28 03:15:00,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:00,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109838276] [2020-11-28 03:15:00,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:00,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:15:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:00,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:15:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:00,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:00,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-28 03:15:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:00,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:15:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:00,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:00,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109838276] [2020-11-28 03:15:00,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:00,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-28 03:15:00,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357674702] [2020-11-28 03:15:00,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:15:00,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:00,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:15:00,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:15:00,817 INFO L87 Difference]: Start difference. First operand 189 states and 247 transitions. Second operand 12 states. [2020-11-28 03:15:00,978 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-28 03:15:01,528 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-11-28 03:15:02,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:02,128 INFO L93 Difference]: Finished difference Result 212 states and 272 transitions. [2020-11-28 03:15:02,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-28 03:15:02,131 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2020-11-28 03:15:02,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:02,133 INFO L225 Difference]: With dead ends: 212 [2020-11-28 03:15:02,133 INFO L226 Difference]: Without dead ends: 212 [2020-11-28 03:15:02,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2020-11-28 03:15:02,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-11-28 03:15:02,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 189. [2020-11-28 03:15:02,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-11-28 03:15:02,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 245 transitions. [2020-11-28 03:15:02,141 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 245 transitions. Word has length 51 [2020-11-28 03:15:02,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:02,144 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 245 transitions. [2020-11-28 03:15:02,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:15:02,144 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 245 transitions. [2020-11-28 03:15:02,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-28 03:15:02,145 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:02,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:02,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:15:02,146 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:15:02,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:02,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1181020867, now seen corresponding path program 1 times [2020-11-28 03:15:02,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:02,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261958991] [2020-11-28 03:15:02,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:02,307 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-11-28 03:15:02,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:15:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:02,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:15:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:02,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:02,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-28 03:15:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:02,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:15:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:02,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:02,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261958991] [2020-11-28 03:15:02,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:02,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:15:02,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358424884] [2020-11-28 03:15:02,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:15:02,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:02,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:15:02,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:15:02,468 INFO L87 Difference]: Start difference. First operand 189 states and 245 transitions. Second operand 8 states. [2020-11-28 03:15:02,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:02,913 INFO L93 Difference]: Finished difference Result 214 states and 277 transitions. [2020-11-28 03:15:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:15:02,913 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-11-28 03:15:02,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:02,916 INFO L225 Difference]: With dead ends: 214 [2020-11-28 03:15:02,916 INFO L226 Difference]: Without dead ends: 214 [2020-11-28 03:15:02,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:15:02,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-11-28 03:15:02,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 195. [2020-11-28 03:15:02,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-11-28 03:15:02,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 253 transitions. [2020-11-28 03:15:02,928 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 253 transitions. Word has length 53 [2020-11-28 03:15:02,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:02,928 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 253 transitions. [2020-11-28 03:15:02,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:15:02,929 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 253 transitions. [2020-11-28 03:15:02,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-28 03:15:02,930 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:02,930 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:02,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:15:02,931 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:15:02,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:02,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1425002687, now seen corresponding path program 1 times [2020-11-28 03:15:02,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:02,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506062041] [2020-11-28 03:15:02,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:03,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:15:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:03,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:15:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:03,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:03,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-28 03:15:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:03,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:15:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:03,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:03,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506062041] [2020-11-28 03:15:03,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:03,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-28 03:15:03,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495842137] [2020-11-28 03:15:03,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:15:03,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:03,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:15:03,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:15:03,336 INFO L87 Difference]: Start difference. First operand 195 states and 253 transitions. Second operand 12 states. [2020-11-28 03:15:03,750 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-11-28 03:15:04,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:04,446 INFO L93 Difference]: Finished difference Result 221 states and 282 transitions. [2020-11-28 03:15:04,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:15:04,446 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2020-11-28 03:15:04,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:04,448 INFO L225 Difference]: With dead ends: 221 [2020-11-28 03:15:04,448 INFO L226 Difference]: Without dead ends: 221 [2020-11-28 03:15:04,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2020-11-28 03:15:04,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-11-28 03:15:04,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 200. [2020-11-28 03:15:04,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-11-28 03:15:04,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 259 transitions. [2020-11-28 03:15:04,457 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 259 transitions. Word has length 53 [2020-11-28 03:15:04,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:04,457 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 259 transitions. [2020-11-28 03:15:04,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:15:04,457 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 259 transitions. [2020-11-28 03:15:04,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-28 03:15:04,458 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:04,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:04,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:15:04,459 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:15:04,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:04,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1677512253, now seen corresponding path program 1 times [2020-11-28 03:15:04,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:04,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064674393] [2020-11-28 03:15:04,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:04,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:15:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:04,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:15:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:04,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:04,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-28 03:15:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:04,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:15:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:04,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:04,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064674393] [2020-11-28 03:15:04,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:04,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-28 03:15:04,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162504885] [2020-11-28 03:15:04,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 03:15:04,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:04,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 03:15:04,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:15:04,781 INFO L87 Difference]: Start difference. First operand 200 states and 259 transitions. Second operand 10 states. [2020-11-28 03:15:05,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:05,186 INFO L93 Difference]: Finished difference Result 201 states and 257 transitions. [2020-11-28 03:15:05,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:15:05,186 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2020-11-28 03:15:05,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:05,187 INFO L225 Difference]: With dead ends: 201 [2020-11-28 03:15:05,187 INFO L226 Difference]: Without dead ends: 95 [2020-11-28 03:15:05,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:15:05,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-11-28 03:15:05,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-11-28 03:15:05,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-11-28 03:15:05,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 107 transitions. [2020-11-28 03:15:05,191 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 107 transitions. Word has length 53 [2020-11-28 03:15:05,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:05,191 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 107 transitions. [2020-11-28 03:15:05,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 03:15:05,192 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 107 transitions. [2020-11-28 03:15:05,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-28 03:15:05,192 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:05,193 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:05,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:15:05,193 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:15:05,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:05,193 INFO L82 PathProgramCache]: Analyzing trace with hash 624658576, now seen corresponding path program 1 times [2020-11-28 03:15:05,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:05,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140675600] [2020-11-28 03:15:05,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:05,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:15:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:05,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:15:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:05,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:05,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-28 03:15:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:05,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:15:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:05,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:15:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:05,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:05,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:05,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140675600] [2020-11-28 03:15:05,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:05,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-28 03:15:05,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689263997] [2020-11-28 03:15:05,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:15:05,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:05,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:15:05,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:15:05,595 INFO L87 Difference]: Start difference. First operand 95 states and 107 transitions. Second operand 12 states. [2020-11-28 03:15:06,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:06,283 INFO L93 Difference]: Finished difference Result 95 states and 105 transitions. [2020-11-28 03:15:06,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:15:06,283 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 60 [2020-11-28 03:15:06,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:06,284 INFO L225 Difference]: With dead ends: 95 [2020-11-28 03:15:06,284 INFO L226 Difference]: Without dead ends: 95 [2020-11-28 03:15:06,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-11-28 03:15:06,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-11-28 03:15:06,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-11-28 03:15:06,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-11-28 03:15:06,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 105 transitions. [2020-11-28 03:15:06,289 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 105 transitions. Word has length 60 [2020-11-28 03:15:06,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:06,290 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 105 transitions. [2020-11-28 03:15:06,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:15:06,290 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 105 transitions. [2020-11-28 03:15:06,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-28 03:15:06,291 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:06,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:06,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:15:06,292 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:15:06,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:06,292 INFO L82 PathProgramCache]: Analyzing trace with hash 2075251738, now seen corresponding path program 1 times [2020-11-28 03:15:06,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:06,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29076806] [2020-11-28 03:15:06,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:06,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:15:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:06,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:15:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:06,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:06,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-28 03:15:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:06,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:15:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:06,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:15:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:06,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:06,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:06,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29076806] [2020-11-28 03:15:06,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:06,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-28 03:15:06,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819892288] [2020-11-28 03:15:06,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:15:06,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:06,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:15:06,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:15:06,656 INFO L87 Difference]: Start difference. First operand 95 states and 105 transitions. Second operand 12 states. [2020-11-28 03:15:07,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:07,023 INFO L93 Difference]: Finished difference Result 104 states and 115 transitions. [2020-11-28 03:15:07,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:15:07,024 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 62 [2020-11-28 03:15:07,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:07,025 INFO L225 Difference]: With dead ends: 104 [2020-11-28 03:15:07,025 INFO L226 Difference]: Without dead ends: 94 [2020-11-28 03:15:07,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:15:07,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-11-28 03:15:07,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2020-11-28 03:15:07,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-28 03:15:07,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2020-11-28 03:15:07,029 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 62 [2020-11-28 03:15:07,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:07,031 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2020-11-28 03:15:07,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:15:07,031 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2020-11-28 03:15:07,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-28 03:15:07,032 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:07,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:07,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 03:15:07,033 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:15:07,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:07,034 INFO L82 PathProgramCache]: Analyzing trace with hash -775467898, now seen corresponding path program 1 times [2020-11-28 03:15:07,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:07,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603983355] [2020-11-28 03:15:07,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:15:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:15:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-28 03:15:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:15:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:15:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:07,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603983355] [2020-11-28 03:15:07,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:07,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-28 03:15:07,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565949224] [2020-11-28 03:15:07,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:15:07,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:07,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:15:07,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:15:07,405 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand 12 states. [2020-11-28 03:15:07,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:07,711 INFO L93 Difference]: Finished difference Result 90 states and 97 transitions. [2020-11-28 03:15:07,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:15:07,712 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 63 [2020-11-28 03:15:07,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:07,712 INFO L225 Difference]: With dead ends: 90 [2020-11-28 03:15:07,712 INFO L226 Difference]: Without dead ends: 90 [2020-11-28 03:15:07,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:15:07,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-11-28 03:15:07,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-11-28 03:15:07,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-28 03:15:07,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2020-11-28 03:15:07,716 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 63 [2020-11-28 03:15:07,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:07,716 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2020-11-28 03:15:07,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:15:07,716 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2020-11-28 03:15:07,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-28 03:15:07,717 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:07,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:07,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-28 03:15:07,718 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:15:07,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:07,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1381211479, now seen corresponding path program 1 times [2020-11-28 03:15:07,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:07,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226139717] [2020-11-28 03:15:07,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:15:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:15:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-28 03:15:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:15:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:15:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:07,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:08,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226139717] [2020-11-28 03:15:08,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:08,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-28 03:15:08,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939840469] [2020-11-28 03:15:08,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:15:08,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:08,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:15:08,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:15:08,002 INFO L87 Difference]: Start difference. First operand 90 states and 97 transitions. Second operand 9 states. [2020-11-28 03:15:08,243 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-11-28 03:15:08,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:08,306 INFO L93 Difference]: Finished difference Result 104 states and 110 transitions. [2020-11-28 03:15:08,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:15:08,306 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2020-11-28 03:15:08,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:08,308 INFO L225 Difference]: With dead ends: 104 [2020-11-28 03:15:08,308 INFO L226 Difference]: Without dead ends: 102 [2020-11-28 03:15:08,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:15:08,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-11-28 03:15:08,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 92. [2020-11-28 03:15:08,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-11-28 03:15:08,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions. [2020-11-28 03:15:08,312 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 63 [2020-11-28 03:15:08,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:08,313 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions. [2020-11-28 03:15:08,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:15:08,313 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2020-11-28 03:15:08,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-11-28 03:15:08,319 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:08,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:08,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-28 03:15:08,319 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:15:08,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:08,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1611348300, now seen corresponding path program 1 times [2020-11-28 03:15:08,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:08,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091348759] [2020-11-28 03:15:08,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:08,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:15:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:08,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:15:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:08,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:08,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-28 03:15:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:08,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:15:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:08,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:15:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:08,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:08,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:08,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091348759] [2020-11-28 03:15:08,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:08,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-28 03:15:08,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056359307] [2020-11-28 03:15:08,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:15:08,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:08,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:15:08,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:15:08,642 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand 9 states. [2020-11-28 03:15:08,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:08,991 INFO L93 Difference]: Finished difference Result 168 states and 178 transitions. [2020-11-28 03:15:08,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:15:08,991 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-11-28 03:15:08,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:08,992 INFO L225 Difference]: With dead ends: 168 [2020-11-28 03:15:08,993 INFO L226 Difference]: Without dead ends: 168 [2020-11-28 03:15:08,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:15:08,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-11-28 03:15:08,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 155. [2020-11-28 03:15:08,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-11-28 03:15:08,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 166 transitions. [2020-11-28 03:15:08,999 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 166 transitions. Word has length 64 [2020-11-28 03:15:08,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:08,999 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 166 transitions. [2020-11-28 03:15:08,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:15:08,999 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 166 transitions. [2020-11-28 03:15:09,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-11-28 03:15:09,000 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:09,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:09,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-28 03:15:09,001 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:15:09,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:09,001 INFO L82 PathProgramCache]: Analyzing trace with hash 802001674, now seen corresponding path program 1 times [2020-11-28 03:15:09,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:09,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630327797] [2020-11-28 03:15:09,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:09,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:15:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:09,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:15:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:09,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:09,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-28 03:15:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:09,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:15:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:09,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:15:09,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:09,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:09,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:09,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630327797] [2020-11-28 03:15:09,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:09,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-28 03:15:09,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918230799] [2020-11-28 03:15:09,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:15:09,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:09,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:15:09,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:15:09,390 INFO L87 Difference]: Start difference. First operand 155 states and 166 transitions. Second operand 12 states. [2020-11-28 03:15:09,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:09,779 INFO L93 Difference]: Finished difference Result 141 states and 148 transitions. [2020-11-28 03:15:09,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:15:09,780 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 64 [2020-11-28 03:15:09,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:09,781 INFO L225 Difference]: With dead ends: 141 [2020-11-28 03:15:09,781 INFO L226 Difference]: Without dead ends: 141 [2020-11-28 03:15:09,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:15:09,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-11-28 03:15:09,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2020-11-28 03:15:09,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-28 03:15:09,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 148 transitions. [2020-11-28 03:15:09,787 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 148 transitions. Word has length 64 [2020-11-28 03:15:09,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:09,787 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 148 transitions. [2020-11-28 03:15:09,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:15:09,788 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 148 transitions. [2020-11-28 03:15:09,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-11-28 03:15:09,788 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:09,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:09,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-28 03:15:09,789 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:15:09,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:09,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1090355466, now seen corresponding path program 1 times [2020-11-28 03:15:09,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:09,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864162734] [2020-11-28 03:15:09,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:09,931 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-11-28 03:15:09,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:15:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:09,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:15:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-28 03:15:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:15:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:15:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:10,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864162734] [2020-11-28 03:15:10,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:10,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-28 03:15:10,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130044917] [2020-11-28 03:15:10,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:15:10,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:10,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:15:10,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:15:10,088 INFO L87 Difference]: Start difference. First operand 141 states and 148 transitions. Second operand 9 states. [2020-11-28 03:15:10,319 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-11-28 03:15:10,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:10,390 INFO L93 Difference]: Finished difference Result 136 states and 139 transitions. [2020-11-28 03:15:10,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:15:10,391 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-11-28 03:15:10,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:10,392 INFO L225 Difference]: With dead ends: 136 [2020-11-28 03:15:10,392 INFO L226 Difference]: Without dead ends: 134 [2020-11-28 03:15:10,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:15:10,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-11-28 03:15:10,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-11-28 03:15:10,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-11-28 03:15:10,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 137 transitions. [2020-11-28 03:15:10,397 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 137 transitions. Word has length 64 [2020-11-28 03:15:10,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:10,398 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 137 transitions. [2020-11-28 03:15:10,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:15:10,398 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 137 transitions. [2020-11-28 03:15:10,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-11-28 03:15:10,399 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:10,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:10,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-28 03:15:10,400 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:15:10,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:10,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1231893397, now seen corresponding path program 1 times [2020-11-28 03:15:10,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:10,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313131220] [2020-11-28 03:15:10,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,581 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-11-28 03:15:10,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:15:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:15:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-28 03:15:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-28 03:15:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-28 03:15:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-28 03:15:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-28 03:15:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:10,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:10,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313131220] [2020-11-28 03:15:10,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:10,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-28 03:15:10,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755813646] [2020-11-28 03:15:10,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 03:15:10,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:10,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 03:15:10,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:15:10,782 INFO L87 Difference]: Start difference. First operand 134 states and 137 transitions. Second operand 11 states. [2020-11-28 03:15:11,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:11,047 INFO L93 Difference]: Finished difference Result 104 states and 103 transitions. [2020-11-28 03:15:11,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:15:11,047 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 75 [2020-11-28 03:15:11,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:11,048 INFO L225 Difference]: With dead ends: 104 [2020-11-28 03:15:11,048 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:15:11,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:15:11,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:15:11,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:15:11,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:15:11,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:15:11,049 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2020-11-28 03:15:11,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:11,049 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:15:11,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 03:15:11,049 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:15:11,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:15:11,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-28 03:15:11,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:15:11 BoogieIcfgContainer [2020-11-28 03:15:11,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:15:11,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:15:11,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:15:11,054 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:15:11,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:51" (3/4) ... [2020-11-28 03:15:11,057 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:15:11,064 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reach_error [2020-11-28 03:15:11,064 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KeSetEvent [2020-11-28 03:15:11,064 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KbFilter_Complete [2020-11-28 03:15:11,064 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stub_driver_init [2020-11-28 03:15:11,065 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure _BLAST_init [2020-11-28 03:15:11,065 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure errorFn [2020-11-28 03:15:11,065 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-11-28 03:15:11,065 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCallDriver [2020-11-28 03:15:11,065 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stubMoreProcessingRequired [2020-11-28 03:15:11,065 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-11-28 03:15:11,065 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KeWaitForSingleObject [2020-11-28 03:15:11,066 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCompleteRequest [2020-11-28 03:15:11,066 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KbFilter_PnP [2020-11-28 03:15:11,076 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2020-11-28 03:15:11,077 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-11-28 03:15:11,078 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:15:11,079 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:15:11,189 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_53bac4d8-68ef-4db0-9ffb-17339cad7a77/bin/uautomizer/witness.graphml [2020-11-28 03:15:11,189 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:15:11,190 INFO L168 Benchmark]: Toolchain (without parser) took 21086.02 ms. Allocated memory was 92.3 MB in the beginning and 283.1 MB in the end (delta: 190.8 MB). Free memory was 57.2 MB in the beginning and 164.7 MB in the end (delta: -107.4 MB). Peak memory consumption was 83.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:11,191 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 92.3 MB. Free memory was 63.4 MB in the beginning and 63.4 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:11,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.06 ms. Allocated memory is still 92.3 MB. Free memory was 56.9 MB in the beginning and 64.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:11,192 INFO L168 Benchmark]: Boogie Preprocessor took 103.88 ms. Allocated memory is still 92.3 MB. Free memory was 64.2 MB in the beginning and 61.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:11,192 INFO L168 Benchmark]: RCFGBuilder took 875.73 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 61.8 MB in the beginning and 60.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:11,193 INFO L168 Benchmark]: TraceAbstraction took 19540.98 ms. Allocated memory was 111.1 MB in the beginning and 283.1 MB in the end (delta: 172.0 MB). Free memory was 59.7 MB in the beginning and 174.1 MB in the end (delta: -114.4 MB). Peak memory consumption was 56.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:11,193 INFO L168 Benchmark]: Witness Printer took 135.13 ms. Allocated memory is still 283.1 MB. Free memory was 173.0 MB in the beginning and 164.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:11,195 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 92.3 MB. Free memory was 63.4 MB in the beginning and 63.4 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 424.06 ms. Allocated memory is still 92.3 MB. Free memory was 56.9 MB in the beginning and 64.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 103.88 ms. Allocated memory is still 92.3 MB. Free memory was 64.2 MB in the beginning and 61.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 875.73 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 61.8 MB in the beginning and 60.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19540.98 ms. Allocated memory was 111.1 MB in the beginning and 283.1 MB in the end (delta: 172.0 MB). Free memory was 59.7 MB in the beginning and 174.1 MB in the end (delta: -114.4 MB). Peak memory consumption was 56.0 MB. Max. memory is 16.1 GB. * Witness Printer took 135.13 ms. Allocated memory is still 283.1 MB. Free memory was 173.0 MB in the beginning and 164.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 288]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 156 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.4s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2435 SDtfs, 3324 SDslu, 2752 SDs, 0 SdLazy, 5874 SolverSat, 919 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 361 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 19 MinimizatonAttempts, 215 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 952 NumberOfCodeBlocks, 952 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 933 ConstructedInterpolants, 0 QuantifiedInterpolants, 247665 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...