./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-queue-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-queue-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e5083763cd1026dac92f37bc5a05779baf01a71b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-queue-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e5083763cd1026dac92f37bc5a05779baf01a71b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort C_DOUBLE not declared --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:08:21,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:08:21,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:08:21,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:08:21,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:08:21,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:08:21,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:08:21,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:08:21,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:08:21,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:08:21,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:08:21,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:08:21,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:08:21,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:08:21,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:08:21,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:08:21,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:08:21,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:08:21,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:08:21,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:08:21,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:08:21,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:08:21,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:08:21,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:08:21,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:08:21,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:08:21,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:08:21,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:08:21,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:08:21,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:08:21,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:08:21,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:08:21,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:08:21,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:08:21,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:08:21,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:08:21,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:08:21,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:08:21,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:08:21,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:08:21,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:08:21,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-11-16 00:08:21,885 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:08:21,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:08:21,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:08:21,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:08:21,887 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:08:21,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:08:21,887 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:08:21,887 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 00:08:21,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:08:21,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:08:21,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:08:21,888 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-16 00:08:21,888 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-16 00:08:21,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:08:21,889 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:08:21,889 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:08:21,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:08:21,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:08:21,890 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:08:21,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:08:21,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:08:21,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:08:21,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:08:21,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:08:21,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:08:21,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_1764f801-ffe9-46f3-a0e1-8538d8f1df99/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-memcleanup) ) 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 -> e5083763cd1026dac92f37bc5a05779baf01a71b [2019-11-16 00:08:21,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:08:21,934 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:08:21,937 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:08:21,938 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:08:21,938 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:08:21,939 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/../../sv-benchmarks/c/forester-heap/sll-queue-2.i [2019-11-16 00:08:21,992 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/data/ac3833864/574c28e79e0b4d1e8ce4d56a304a4535/FLAG6d48a7275 [2019-11-16 00:08:22,450 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:08:22,451 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/sv-benchmarks/c/forester-heap/sll-queue-2.i [2019-11-16 00:08:22,465 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/data/ac3833864/574c28e79e0b4d1e8ce4d56a304a4535/FLAG6d48a7275 [2019-11-16 00:08:22,809 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/data/ac3833864/574c28e79e0b4d1e8ce4d56a304a4535 [2019-11-16 00:08:22,812 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:08:22,813 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-16 00:08:22,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:08:22,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:08:22,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:08:22,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:08:22" (1/1) ... [2019-11-16 00:08:22,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28445939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:22, skipping insertion in model container [2019-11-16 00:08:22,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:08:22" (1/1) ... [2019-11-16 00:08:22,826 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:08:22,871 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:08:23,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:08:23,267 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:08:23,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:08:23,348 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:08:23,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:23 WrapperNode [2019-11-16 00:08:23,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:08:23,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:08:23,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:08:23,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:08:23,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:23" (1/1) ... [2019-11-16 00:08:23,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:23" (1/1) ... [2019-11-16 00:08:23,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:23" (1/1) ... [2019-11-16 00:08:23,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:23" (1/1) ... [2019-11-16 00:08:23,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:23" (1/1) ... [2019-11-16 00:08:23,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:23" (1/1) ... [2019-11-16 00:08:23,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:23" (1/1) ... [2019-11-16 00:08:23,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:08:23,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:08:23,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:08:23,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:08:23,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/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 [2019-11-16 00:08:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-16 00:08:23,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:08:23,477 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-16 00:08:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-16 00:08:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-16 00:08:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-16 00:08:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-16 00:08:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-16 00:08:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-16 00:08:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-16 00:08:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-16 00:08:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-16 00:08:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-16 00:08:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-16 00:08:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-16 00:08:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-16 00:08:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-16 00:08:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-16 00:08:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-16 00:08:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-16 00:08:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-16 00:08:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-16 00:08:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-16 00:08:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-16 00:08:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-16 00:08:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-16 00:08:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-16 00:08:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-16 00:08:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-16 00:08:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-16 00:08:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-16 00:08:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-16 00:08:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-16 00:08:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-16 00:08:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-16 00:08:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-16 00:08:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-16 00:08:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-16 00:08:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-16 00:08:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-16 00:08:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-16 00:08:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-16 00:08:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-16 00:08:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-16 00:08:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-16 00:08:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-16 00:08:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-16 00:08:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-16 00:08:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-16 00:08:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-16 00:08:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-16 00:08:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-16 00:08:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-16 00:08:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-16 00:08:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-16 00:08:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-16 00:08:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-16 00:08:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-16 00:08:23,494 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-16 00:08:23,495 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-16 00:08:23,495 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-16 00:08:23,496 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-16 00:08:23,496 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-16 00:08:23,496 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-16 00:08:23,496 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-16 00:08:23,496 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-16 00:08:23,496 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-16 00:08:23,496 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-16 00:08:23,497 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-16 00:08:23,497 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-16 00:08:23,497 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-16 00:08:23,498 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-16 00:08:23,498 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-16 00:08:23,498 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-16 00:08:23,498 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-16 00:08:23,499 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-16 00:08:23,499 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-16 00:08:23,500 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-16 00:08:23,501 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-16 00:08:23,501 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-16 00:08:23,501 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-16 00:08:23,501 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-16 00:08:23,502 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-16 00:08:23,502 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-16 00:08:23,502 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-16 00:08:23,502 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-16 00:08:23,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-16 00:08:23,502 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-16 00:08:23,502 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-16 00:08:23,503 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-16 00:08:23,503 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-16 00:08:23,503 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-16 00:08:23,503 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-16 00:08:23,503 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-16 00:08:23,503 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-16 00:08:23,503 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-16 00:08:23,503 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-16 00:08:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-16 00:08:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-16 00:08:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-16 00:08:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-16 00:08:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-16 00:08:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-16 00:08:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-16 00:08:23,504 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-16 00:08:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-16 00:08:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-16 00:08:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-16 00:08:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-16 00:08:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-16 00:08:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-16 00:08:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:08:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-16 00:08:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:08:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:08:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-16 00:08:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:08:24,362 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:08:24,362 INFO L284 CfgBuilder]: Removed 31 assume(true) statements. [2019-11-16 00:08:24,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:08:24 BoogieIcfgContainer [2019-11-16 00:08:24,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:08:24,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:08:24,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:08:24,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:08:24,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:08:22" (1/3) ... [2019-11-16 00:08:24,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0f0004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:08:24, skipping insertion in model container [2019-11-16 00:08:24,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:23" (2/3) ... [2019-11-16 00:08:24,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0f0004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:08:24, skipping insertion in model container [2019-11-16 00:08:24,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:08:24" (3/3) ... [2019-11-16 00:08:24,370 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-queue-2.i [2019-11-16 00:08:24,379 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:08:24,393 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 56 error locations. [2019-11-16 00:08:24,402 INFO L249 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2019-11-16 00:08:24,441 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:08:24,442 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-16 00:08:24,442 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:08:24,442 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:08:24,442 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:08:24,442 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:08:24,442 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:08:24,442 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:08:24,477 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-11-16 00:08:24,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-16 00:08:24,488 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:24,489 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:08:24,490 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:24,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:24,496 INFO L82 PathProgramCache]: Analyzing trace with hash 275253267, now seen corresponding path program 1 times [2019-11-16 00:08:24,502 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:24,502 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640862596] [2019-11-16 00:08:24,502 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:24,502 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:24,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:24,679 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640862596] [2019-11-16 00:08:24,680 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:08:24,680 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-16 00:08:24,680 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545726664] [2019-11-16 00:08:24,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-16 00:08:24,684 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:08:24,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-16 00:08:24,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-16 00:08:24,700 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 4 states. [2019-11-16 00:08:25,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:08:25,116 INFO L93 Difference]: Finished difference Result 144 states and 155 transitions. [2019-11-16 00:08:25,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-16 00:08:25,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-16 00:08:25,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:08:25,129 INFO L225 Difference]: With dead ends: 144 [2019-11-16 00:08:25,129 INFO L226 Difference]: Without dead ends: 140 [2019-11-16 00:08:25,131 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:08:25,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-11-16 00:08:25,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 136. [2019-11-16 00:08:25,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-11-16 00:08:25,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 148 transitions. [2019-11-16 00:08:25,175 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 148 transitions. Word has length 7 [2019-11-16 00:08:25,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:08:25,176 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 148 transitions. [2019-11-16 00:08:25,176 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-16 00:08:25,176 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 148 transitions. [2019-11-16 00:08:25,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-16 00:08:25,177 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:25,177 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:08:25,177 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:25,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:25,178 INFO L82 PathProgramCache]: Analyzing trace with hash 275253268, now seen corresponding path program 1 times [2019-11-16 00:08:25,178 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:25,178 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205966726] [2019-11-16 00:08:25,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:25,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:25,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:25,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:25,252 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205966726] [2019-11-16 00:08:25,253 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:08:25,253 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-16 00:08:25,253 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225631240] [2019-11-16 00:08:25,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-16 00:08:25,254 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:08:25,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-16 00:08:25,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-16 00:08:25,255 INFO L87 Difference]: Start difference. First operand 136 states and 148 transitions. Second operand 4 states. [2019-11-16 00:08:25,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:08:25,585 INFO L93 Difference]: Finished difference Result 130 states and 140 transitions. [2019-11-16 00:08:25,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-16 00:08:25,586 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-16 00:08:25,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:08:25,587 INFO L225 Difference]: With dead ends: 130 [2019-11-16 00:08:25,587 INFO L226 Difference]: Without dead ends: 130 [2019-11-16 00:08:25,588 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-16 00:08:25,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-11-16 00:08:25,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2019-11-16 00:08:25,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-11-16 00:08:25,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 137 transitions. [2019-11-16 00:08:25,599 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 137 transitions. Word has length 7 [2019-11-16 00:08:25,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:08:25,599 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 137 transitions. [2019-11-16 00:08:25,599 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-16 00:08:25,599 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 137 transitions. [2019-11-16 00:08:25,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-16 00:08:25,600 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:25,600 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:08:25,601 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:25,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:25,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1234366853, now seen corresponding path program 1 times [2019-11-16 00:08:25,602 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:25,604 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396133625] [2019-11-16 00:08:25,605 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:25,605 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:25,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:25,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:25,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396133625] [2019-11-16 00:08:25,731 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:08:25,731 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-16 00:08:25,731 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052736255] [2019-11-16 00:08:25,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:08:25,732 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:08:25,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:08:25,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:08:25,738 INFO L87 Difference]: Start difference. First operand 126 states and 137 transitions. Second operand 5 states. [2019-11-16 00:08:26,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:08:26,078 INFO L93 Difference]: Finished difference Result 134 states and 144 transitions. [2019-11-16 00:08:26,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:08:26,079 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-16 00:08:26,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:08:26,081 INFO L225 Difference]: With dead ends: 134 [2019-11-16 00:08:26,081 INFO L226 Difference]: Without dead ends: 134 [2019-11-16 00:08:26,082 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:08:26,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-11-16 00:08:26,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 128. [2019-11-16 00:08:26,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-11-16 00:08:26,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 142 transitions. [2019-11-16 00:08:26,093 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 142 transitions. Word has length 12 [2019-11-16 00:08:26,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:08:26,094 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 142 transitions. [2019-11-16 00:08:26,094 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:08:26,094 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 142 transitions. [2019-11-16 00:08:26,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-16 00:08:26,095 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:26,095 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:08:26,096 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:26,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:26,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1234366852, now seen corresponding path program 1 times [2019-11-16 00:08:26,096 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:26,097 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357834186] [2019-11-16 00:08:26,097 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:26,097 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:26,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:26,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:26,195 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357834186] [2019-11-16 00:08:26,195 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:08:26,195 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-16 00:08:26,195 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428136044] [2019-11-16 00:08:26,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:08:26,196 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:08:26,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:08:26,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:08:26,197 INFO L87 Difference]: Start difference. First operand 128 states and 142 transitions. Second operand 5 states. [2019-11-16 00:08:26,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:08:26,606 INFO L93 Difference]: Finished difference Result 196 states and 211 transitions. [2019-11-16 00:08:26,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:08:26,606 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-16 00:08:26,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:08:26,608 INFO L225 Difference]: With dead ends: 196 [2019-11-16 00:08:26,608 INFO L226 Difference]: Without dead ends: 196 [2019-11-16 00:08:26,609 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:08:26,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-11-16 00:08:26,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 132. [2019-11-16 00:08:26,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-16 00:08:26,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 146 transitions. [2019-11-16 00:08:26,619 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 146 transitions. Word has length 12 [2019-11-16 00:08:26,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:08:26,619 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 146 transitions. [2019-11-16 00:08:26,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:08:26,620 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 146 transitions. [2019-11-16 00:08:26,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-16 00:08:26,620 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:26,620 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:08:26,621 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:26,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:26,621 INFO L82 PathProgramCache]: Analyzing trace with hash 487063775, now seen corresponding path program 1 times [2019-11-16 00:08:26,621 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:26,621 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89693068] [2019-11-16 00:08:26,622 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:26,622 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:26,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:26,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:26,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:26,742 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89693068] [2019-11-16 00:08:26,742 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:08:26,742 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-16 00:08:26,743 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318485169] [2019-11-16 00:08:26,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-16 00:08:26,743 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:08:26,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-16 00:08:26,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:08:26,744 INFO L87 Difference]: Start difference. First operand 132 states and 146 transitions. Second operand 7 states. [2019-11-16 00:08:27,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:08:27,325 INFO L93 Difference]: Finished difference Result 216 states and 235 transitions. [2019-11-16 00:08:27,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-16 00:08:27,325 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-11-16 00:08:27,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:08:27,327 INFO L225 Difference]: With dead ends: 216 [2019-11-16 00:08:27,327 INFO L226 Difference]: Without dead ends: 216 [2019-11-16 00:08:27,327 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-16 00:08:27,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2019-11-16 00:08:27,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 131. [2019-11-16 00:08:27,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-11-16 00:08:27,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 145 transitions. [2019-11-16 00:08:27,337 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 145 transitions. Word has length 15 [2019-11-16 00:08:27,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:08:27,337 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 145 transitions. [2019-11-16 00:08:27,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-16 00:08:27,337 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 145 transitions. [2019-11-16 00:08:27,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-16 00:08:27,338 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:27,338 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:08:27,338 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:27,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:27,339 INFO L82 PathProgramCache]: Analyzing trace with hash 487063776, now seen corresponding path program 1 times [2019-11-16 00:08:27,339 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:27,339 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137135196] [2019-11-16 00:08:27,339 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:27,339 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:27,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:27,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:27,450 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137135196] [2019-11-16 00:08:27,450 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:08:27,450 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-16 00:08:27,450 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210171687] [2019-11-16 00:08:27,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-16 00:08:27,451 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:08:27,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-16 00:08:27,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:08:27,452 INFO L87 Difference]: Start difference. First operand 131 states and 145 transitions. Second operand 7 states. [2019-11-16 00:08:28,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:08:28,046 INFO L93 Difference]: Finished difference Result 219 states and 242 transitions. [2019-11-16 00:08:28,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-16 00:08:28,047 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-11-16 00:08:28,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:08:28,048 INFO L225 Difference]: With dead ends: 219 [2019-11-16 00:08:28,048 INFO L226 Difference]: Without dead ends: 219 [2019-11-16 00:08:28,049 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-16 00:08:28,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2019-11-16 00:08:28,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 121. [2019-11-16 00:08:28,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-11-16 00:08:28,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 134 transitions. [2019-11-16 00:08:28,056 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 134 transitions. Word has length 15 [2019-11-16 00:08:28,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:08:28,057 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 134 transitions. [2019-11-16 00:08:28,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-16 00:08:28,057 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 134 transitions. [2019-11-16 00:08:28,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-16 00:08:28,058 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:28,058 INFO L380 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] [2019-11-16 00:08:28,058 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:28,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:28,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1361847797, now seen corresponding path program 1 times [2019-11-16 00:08:28,059 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:28,059 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175460151] [2019-11-16 00:08:28,059 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:28,060 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:28,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:28,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:28,100 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175460151] [2019-11-16 00:08:28,100 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:08:28,100 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-16 00:08:28,100 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373204255] [2019-11-16 00:08:28,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-16 00:08:28,101 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:08:28,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-16 00:08:28,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-16 00:08:28,102 INFO L87 Difference]: Start difference. First operand 121 states and 134 transitions. Second operand 4 states. [2019-11-16 00:08:28,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:08:28,259 INFO L93 Difference]: Finished difference Result 173 states and 193 transitions. [2019-11-16 00:08:28,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-16 00:08:28,260 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-11-16 00:08:28,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:08:28,261 INFO L225 Difference]: With dead ends: 173 [2019-11-16 00:08:28,261 INFO L226 Difference]: Without dead ends: 173 [2019-11-16 00:08:28,262 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-16 00:08:28,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-11-16 00:08:28,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 133. [2019-11-16 00:08:28,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-11-16 00:08:28,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 147 transitions. [2019-11-16 00:08:28,268 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 147 transitions. Word has length 22 [2019-11-16 00:08:28,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:08:28,268 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 147 transitions. [2019-11-16 00:08:28,268 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-16 00:08:28,268 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 147 transitions. [2019-11-16 00:08:28,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-16 00:08:28,274 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:28,275 INFO L380 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] [2019-11-16 00:08:28,275 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:28,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:28,276 INFO L82 PathProgramCache]: Analyzing trace with hash -2035988458, now seen corresponding path program 1 times [2019-11-16 00:08:28,276 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:28,276 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600856158] [2019-11-16 00:08:28,277 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:28,277 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:28,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:28,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:28,336 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600856158] [2019-11-16 00:08:28,336 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:08:28,336 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-16 00:08:28,336 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764619388] [2019-11-16 00:08:28,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-16 00:08:28,337 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:08:28,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-16 00:08:28,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-16 00:08:28,351 INFO L87 Difference]: Start difference. First operand 133 states and 147 transitions. Second operand 4 states. [2019-11-16 00:08:28,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:08:28,544 INFO L93 Difference]: Finished difference Result 133 states and 146 transitions. [2019-11-16 00:08:28,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-16 00:08:28,544 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-11-16 00:08:28,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:08:28,545 INFO L225 Difference]: With dead ends: 133 [2019-11-16 00:08:28,545 INFO L226 Difference]: Without dead ends: 133 [2019-11-16 00:08:28,546 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-16 00:08:28,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-11-16 00:08:28,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-11-16 00:08:28,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-11-16 00:08:28,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 146 transitions. [2019-11-16 00:08:28,551 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 146 transitions. Word has length 24 [2019-11-16 00:08:28,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:08:28,551 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 146 transitions. [2019-11-16 00:08:28,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-16 00:08:28,551 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 146 transitions. [2019-11-16 00:08:28,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-16 00:08:28,552 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:28,552 INFO L380 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] [2019-11-16 00:08:28,552 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:28,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:28,557 INFO L82 PathProgramCache]: Analyzing trace with hash -2035964976, now seen corresponding path program 1 times [2019-11-16 00:08:28,558 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:28,558 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294964103] [2019-11-16 00:08:28,558 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:28,558 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:28,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:28,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:28,648 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294964103] [2019-11-16 00:08:28,648 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:08:28,648 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-16 00:08:28,648 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695058477] [2019-11-16 00:08:28,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:08:28,648 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:08:28,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:08:28,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:08:28,649 INFO L87 Difference]: Start difference. First operand 133 states and 146 transitions. Second operand 5 states. [2019-11-16 00:08:28,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:08:28,847 INFO L93 Difference]: Finished difference Result 166 states and 182 transitions. [2019-11-16 00:08:28,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:08:28,848 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-11-16 00:08:28,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:08:28,849 INFO L225 Difference]: With dead ends: 166 [2019-11-16 00:08:28,849 INFO L226 Difference]: Without dead ends: 166 [2019-11-16 00:08:28,849 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:08:28,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-11-16 00:08:28,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 144. [2019-11-16 00:08:28,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-16 00:08:28,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 161 transitions. [2019-11-16 00:08:28,854 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 161 transitions. Word has length 24 [2019-11-16 00:08:28,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:08:28,855 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 161 transitions. [2019-11-16 00:08:28,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:08:28,855 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 161 transitions. [2019-11-16 00:08:28,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-16 00:08:28,856 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:28,856 INFO L380 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] [2019-11-16 00:08:28,857 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:28,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:28,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1921639418, now seen corresponding path program 1 times [2019-11-16 00:08:28,857 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:28,857 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845849657] [2019-11-16 00:08:28,858 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:28,858 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:28,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:28,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:28,980 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845849657] [2019-11-16 00:08:28,980 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:08:28,980 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-16 00:08:28,980 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167781566] [2019-11-16 00:08:28,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-16 00:08:28,980 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:08:28,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-16 00:08:28,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:08:28,981 INFO L87 Difference]: Start difference. First operand 144 states and 161 transitions. Second operand 7 states. [2019-11-16 00:08:29,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:08:29,280 INFO L93 Difference]: Finished difference Result 142 states and 155 transitions. [2019-11-16 00:08:29,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-16 00:08:29,281 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2019-11-16 00:08:29,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:08:29,282 INFO L225 Difference]: With dead ends: 142 [2019-11-16 00:08:29,283 INFO L226 Difference]: Without dead ends: 142 [2019-11-16 00:08:29,283 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-11-16 00:08:29,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-11-16 00:08:29,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2019-11-16 00:08:29,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-11-16 00:08:29,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 151 transitions. [2019-11-16 00:08:29,287 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 151 transitions. Word has length 26 [2019-11-16 00:08:29,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:08:29,287 INFO L462 AbstractCegarLoop]: Abstraction has 138 states and 151 transitions. [2019-11-16 00:08:29,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-16 00:08:29,287 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 151 transitions. [2019-11-16 00:08:29,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-16 00:08:29,288 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:29,288 INFO L380 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] [2019-11-16 00:08:29,288 INFO L410 AbstractCegarLoop]: === Iteration 11 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:29,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:29,289 INFO L82 PathProgramCache]: Analyzing trace with hash -598320516, now seen corresponding path program 1 times [2019-11-16 00:08:29,289 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:29,289 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483983073] [2019-11-16 00:08:29,289 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:29,289 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:29,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:29,377 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483983073] [2019-11-16 00:08:29,377 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:08:29,377 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-16 00:08:29,377 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670882210] [2019-11-16 00:08:29,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:08:29,378 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:08:29,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:08:29,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:08:29,378 INFO L87 Difference]: Start difference. First operand 138 states and 151 transitions. Second operand 5 states. [2019-11-16 00:08:29,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:08:29,611 INFO L93 Difference]: Finished difference Result 138 states and 150 transitions. [2019-11-16 00:08:29,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:08:29,612 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-11-16 00:08:29,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:08:29,613 INFO L225 Difference]: With dead ends: 138 [2019-11-16 00:08:29,613 INFO L226 Difference]: Without dead ends: 138 [2019-11-16 00:08:29,613 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:08:29,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-11-16 00:08:29,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-11-16 00:08:29,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-11-16 00:08:29,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 150 transitions. [2019-11-16 00:08:29,616 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 150 transitions. Word has length 26 [2019-11-16 00:08:29,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:08:29,616 INFO L462 AbstractCegarLoop]: Abstraction has 138 states and 150 transitions. [2019-11-16 00:08:29,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:08:29,617 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 150 transitions. [2019-11-16 00:08:29,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-16 00:08:29,617 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:29,617 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:08:29,617 INFO L410 AbstractCegarLoop]: === Iteration 12 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:29,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:29,618 INFO L82 PathProgramCache]: Analyzing trace with hash -451797013, now seen corresponding path program 1 times [2019-11-16 00:08:29,618 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:29,618 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801713832] [2019-11-16 00:08:29,618 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:29,618 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:29,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:29,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:29,714 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801713832] [2019-11-16 00:08:29,714 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019483483] [2019-11-16 00:08:29,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:08:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:29,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-16 00:08:29,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:08:30,004 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-16 00:08:30,005 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:30,017 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:08:30,019 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-16 00:08:30,020 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:30,024 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:08:30,025 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-16 00:08:30,025 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2019-11-16 00:08:30,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:30,029 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:08:30,029 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 10 [2019-11-16 00:08:30,029 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064630020] [2019-11-16 00:08:30,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-16 00:08:30,030 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:08:30,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-16 00:08:30,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-11-16 00:08:30,030 INFO L87 Difference]: Start difference. First operand 138 states and 150 transitions. Second operand 10 states. [2019-11-16 00:08:30,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:08:30,527 INFO L93 Difference]: Finished difference Result 165 states and 181 transitions. [2019-11-16 00:08:30,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-16 00:08:30,527 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2019-11-16 00:08:30,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:08:30,528 INFO L225 Difference]: With dead ends: 165 [2019-11-16 00:08:30,529 INFO L226 Difference]: Without dead ends: 165 [2019-11-16 00:08:30,529 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2019-11-16 00:08:30,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-11-16 00:08:30,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2019-11-16 00:08:30,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-11-16 00:08:30,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 161 transitions. [2019-11-16 00:08:30,534 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 161 transitions. Word has length 29 [2019-11-16 00:08:30,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:08:30,535 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 161 transitions. [2019-11-16 00:08:30,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-16 00:08:30,535 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 161 transitions. [2019-11-16 00:08:30,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-16 00:08:30,536 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:30,536 INFO L380 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] [2019-11-16 00:08:30,752 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:08:30,752 INFO L410 AbstractCegarLoop]: === Iteration 13 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:30,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:30,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1120806669, now seen corresponding path program 1 times [2019-11-16 00:08:30,753 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:30,753 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212458635] [2019-11-16 00:08:30,753 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:30,753 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:30,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:30,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:30,836 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212458635] [2019-11-16 00:08:30,836 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309181630] [2019-11-16 00:08:30,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:08:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:30,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-16 00:08:30,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:08:31,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:31,052 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:08:31,052 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-11-16 00:08:31,052 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617038735] [2019-11-16 00:08:31,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-16 00:08:31,053 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:08:31,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-16 00:08:31,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-16 00:08:31,053 INFO L87 Difference]: Start difference. First operand 148 states and 161 transitions. Second operand 9 states. [2019-11-16 00:08:31,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:08:31,464 INFO L93 Difference]: Finished difference Result 158 states and 170 transitions. [2019-11-16 00:08:31,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-16 00:08:31,465 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2019-11-16 00:08:31,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:08:31,466 INFO L225 Difference]: With dead ends: 158 [2019-11-16 00:08:31,466 INFO L226 Difference]: Without dead ends: 139 [2019-11-16 00:08:31,466 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-11-16 00:08:31,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-11-16 00:08:31,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2019-11-16 00:08:31,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-11-16 00:08:31,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 151 transitions. [2019-11-16 00:08:31,470 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 151 transitions. Word has length 30 [2019-11-16 00:08:31,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:08:31,471 INFO L462 AbstractCegarLoop]: Abstraction has 139 states and 151 transitions. [2019-11-16 00:08:31,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-16 00:08:31,471 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 151 transitions. [2019-11-16 00:08:31,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-16 00:08:31,472 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:31,472 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:08:31,672 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:08:31,673 INFO L410 AbstractCegarLoop]: === Iteration 14 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:31,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:31,673 INFO L82 PathProgramCache]: Analyzing trace with hash -2125372333, now seen corresponding path program 1 times [2019-11-16 00:08:31,673 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:31,673 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794648909] [2019-11-16 00:08:31,673 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:31,674 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:31,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:31,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:31,708 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794648909] [2019-11-16 00:08:31,708 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:08:31,708 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-16 00:08:31,709 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171460552] [2019-11-16 00:08:31,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-16 00:08:31,709 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:08:31,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-16 00:08:31,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-16 00:08:31,710 INFO L87 Difference]: Start difference. First operand 139 states and 151 transitions. Second operand 4 states. [2019-11-16 00:08:31,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:08:31,879 INFO L93 Difference]: Finished difference Result 207 states and 225 transitions. [2019-11-16 00:08:31,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-16 00:08:31,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2019-11-16 00:08:31,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:08:31,881 INFO L225 Difference]: With dead ends: 207 [2019-11-16 00:08:31,881 INFO L226 Difference]: Without dead ends: 207 [2019-11-16 00:08:31,882 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-16 00:08:31,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2019-11-16 00:08:31,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 156. [2019-11-16 00:08:31,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-16 00:08:31,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 169 transitions. [2019-11-16 00:08:31,886 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 169 transitions. Word has length 35 [2019-11-16 00:08:31,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:08:31,887 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 169 transitions. [2019-11-16 00:08:31,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-16 00:08:31,887 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 169 transitions. [2019-11-16 00:08:31,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-16 00:08:31,888 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:31,888 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:08:31,888 INFO L410 AbstractCegarLoop]: === Iteration 15 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:31,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:31,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1832593597, now seen corresponding path program 1 times [2019-11-16 00:08:31,889 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:31,889 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480037731] [2019-11-16 00:08:31,889 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:31,889 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:31,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:32,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:32,152 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480037731] [2019-11-16 00:08:32,152 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676518561] [2019-11-16 00:08:32,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:08:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:32,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-16 00:08:32,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:08:32,321 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:08:32,322 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-16 00:08:32,322 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:32,359 INFO L567 ElimStorePlain]: treesize reduction 14, result has 60.0 percent of original size [2019-11-16 00:08:32,359 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-16 00:08:32,359 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2019-11-16 00:08:32,384 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-16 00:08:32,384 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:32,393 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:08:32,394 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-16 00:08:32,394 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:29 [2019-11-16 00:08:32,517 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:08:32,518 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 51 [2019-11-16 00:08:32,518 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:32,542 INFO L567 ElimStorePlain]: treesize reduction 24, result has 54.7 percent of original size [2019-11-16 00:08:32,542 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-16 00:08:32,543 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:29 [2019-11-16 00:08:32,620 INFO L341 Elim1Store]: treesize reduction 38, result has 56.3 percent of original size [2019-11-16 00:08:32,620 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 79 [2019-11-16 00:08:32,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:08:32,623 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:32,638 INFO L567 ElimStorePlain]: treesize reduction 32, result has 51.5 percent of original size [2019-11-16 00:08:32,638 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-16 00:08:32,639 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:65, output treesize:34 [2019-11-16 00:08:32,696 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:08:32,697 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 31 [2019-11-16 00:08:32,697 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:32,707 INFO L567 ElimStorePlain]: treesize reduction 12, result has 55.6 percent of original size [2019-11-16 00:08:32,708 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-16 00:08:32,708 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:41, output treesize:15 [2019-11-16 00:08:32,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:32,770 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:08:32,770 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11] total 24 [2019-11-16 00:08:32,771 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036530824] [2019-11-16 00:08:32,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-16 00:08:32,771 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:08:32,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-16 00:08:32,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2019-11-16 00:08:32,772 INFO L87 Difference]: Start difference. First operand 156 states and 169 transitions. Second operand 25 states. [2019-11-16 00:08:34,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:08:34,233 INFO L93 Difference]: Finished difference Result 225 states and 245 transitions. [2019-11-16 00:08:34,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-11-16 00:08:34,233 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 42 [2019-11-16 00:08:34,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:08:34,234 INFO L225 Difference]: With dead ends: 225 [2019-11-16 00:08:34,235 INFO L226 Difference]: Without dead ends: 225 [2019-11-16 00:08:34,236 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=368, Invalid=1272, Unknown=0, NotChecked=0, Total=1640 [2019-11-16 00:08:34,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2019-11-16 00:08:34,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 182. [2019-11-16 00:08:34,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-11-16 00:08:34,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 200 transitions. [2019-11-16 00:08:34,241 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 200 transitions. Word has length 42 [2019-11-16 00:08:34,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:08:34,241 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 200 transitions. [2019-11-16 00:08:34,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-16 00:08:34,241 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 200 transitions. [2019-11-16 00:08:34,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-16 00:08:34,242 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:34,242 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:08:34,442 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:08:34,443 INFO L410 AbstractCegarLoop]: === Iteration 16 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:34,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:34,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1832593596, now seen corresponding path program 1 times [2019-11-16 00:08:34,443 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:34,443 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240447993] [2019-11-16 00:08:34,444 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:34,444 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:34,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:34,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:34,709 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240447993] [2019-11-16 00:08:34,709 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430904659] [2019-11-16 00:08:34,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:08:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:34,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-16 00:08:34,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:08:34,825 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_59|], 1=[|v_#valid_71|]} [2019-11-16 00:08:34,831 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-16 00:08:34,831 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:34,852 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:08:34,861 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:08:34,862 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-16 00:08:34,862 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:34,873 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:08:34,874 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-16 00:08:34,874 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2019-11-16 00:08:34,881 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-16 00:08:34,882 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:34,895 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:08:34,899 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-16 00:08:34,899 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:34,911 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:08:34,912 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-16 00:08:34,913 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:31 [2019-11-16 00:08:35,000 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:08:35,001 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 51 [2019-11-16 00:08:35,001 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:35,026 INFO L567 ElimStorePlain]: treesize reduction 24, result has 63.6 percent of original size [2019-11-16 00:08:35,030 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2019-11-16 00:08:35,030 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:35,040 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:08:35,041 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-16 00:08:35,041 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:54, output treesize:38 [2019-11-16 00:08:35,112 INFO L341 Elim1Store]: treesize reduction 38, result has 56.3 percent of original size [2019-11-16 00:08:35,112 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 105 [2019-11-16 00:08:35,113 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:08:35,114 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:35,147 INFO L567 ElimStorePlain]: treesize reduction 32, result has 70.9 percent of original size [2019-11-16 00:08:35,151 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-16 00:08:35,152 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 25 [2019-11-16 00:08:35,153 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:35,168 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:08:35,169 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-16 00:08:35,169 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:109, output treesize:47 [2019-11-16 00:08:35,242 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:08:35,242 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 38 [2019-11-16 00:08:35,243 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:35,261 INFO L567 ElimStorePlain]: treesize reduction 12, result has 72.1 percent of original size [2019-11-16 00:08:35,269 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2019-11-16 00:08:35,270 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-16 00:08:35,277 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:08:35,278 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-16 00:08:35,278 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:61, output treesize:9 [2019-11-16 00:08:35,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:08:35,321 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:08:35,321 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 20 [2019-11-16 00:08:35,322 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851616985] [2019-11-16 00:08:35,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-11-16 00:08:35,323 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:08:35,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-11-16 00:08:35,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2019-11-16 00:08:35,324 INFO L87 Difference]: Start difference. First operand 182 states and 200 transitions. Second operand 21 states. [2019-11-16 00:08:36,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:08:36,804 INFO L93 Difference]: Finished difference Result 218 states and 239 transitions. [2019-11-16 00:08:36,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-16 00:08:36,805 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 42 [2019-11-16 00:08:36,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:08:36,806 INFO L225 Difference]: With dead ends: 218 [2019-11-16 00:08:36,806 INFO L226 Difference]: Without dead ends: 218 [2019-11-16 00:08:36,807 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=277, Invalid=1283, Unknown=0, NotChecked=0, Total=1560 [2019-11-16 00:08:36,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2019-11-16 00:08:36,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 186. [2019-11-16 00:08:36,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2019-11-16 00:08:36,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 203 transitions. [2019-11-16 00:08:36,813 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 203 transitions. Word has length 42 [2019-11-16 00:08:36,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:08:36,813 INFO L462 AbstractCegarLoop]: Abstraction has 186 states and 203 transitions. [2019-11-16 00:08:36,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-11-16 00:08:36,814 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 203 transitions. [2019-11-16 00:08:36,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-16 00:08:36,814 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:36,814 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:08:37,015 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:08:37,015 INFO L410 AbstractCegarLoop]: === Iteration 17 === [mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-16 00:08:37,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:37,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1998928410, now seen corresponding path program 1 times [2019-11-16 00:08:37,016 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:08:37,016 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495756830] [2019-11-16 00:08:37,016 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:37,016 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:08:37,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:08:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:08:37,035 ERROR L253 erpolLogProxyWrapper]: Interpolant 9 not inductive [2019-11-16 00:08:37,045 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:221) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:863) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:385) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:193) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:305) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-16 00:08:37,059 INFO L168 Benchmark]: Toolchain (without parser) took 14246.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.4 MB). Free memory was 940.8 MB in the beginning and 984.2 MB in the end (delta: -43.4 MB). Peak memory consumption was 159.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:08:37,063 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:08:37,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:08:37,064 INFO L168 Benchmark]: Boogie Preprocessor took 66.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:08:37,065 INFO L168 Benchmark]: RCFGBuilder took 948.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:08:37,065 INFO L168 Benchmark]: TraceAbstraction took 12693.01 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 90.7 MB). Free memory was 1.0 GB in the beginning and 984.2 MB in the end (delta: 33.8 MB). Peak memory consumption was 124.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:08:37,067 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 535.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 948.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12693.01 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 90.7 MB). Free memory was 1.0 GB in the beginning and 984.2 MB in the end (delta: 33.8 MB). Peak memory consumption was 124.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:221) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-16 00:08:39,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:08:39,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:08:39,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:08:39,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:08:39,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:08:39,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:08:39,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:08:39,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:08:39,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:08:39,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:08:39,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:08:39,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:08:39,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:08:39,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:08:39,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:08:39,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:08:39,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:08:39,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:08:39,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:08:39,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:08:39,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:08:39,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:08:39,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:08:39,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:08:39,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:08:39,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:08:39,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:08:39,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:08:39,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:08:39,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:08:39,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:08:39,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:08:39,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:08:39,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:08:39,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:08:39,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:08:39,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:08:39,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:08:39,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:08:39,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:08:39,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2019-11-16 00:08:39,310 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:08:39,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:08:39,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:08:39,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:08:39,314 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:08:39,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:08:39,315 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:08:39,315 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 00:08:39,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:08:39,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:08:39,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:08:39,316 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-16 00:08:39,317 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-16 00:08:39,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:08:39,317 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:08:39,317 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:08:39,318 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:08:39,318 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:08:39,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:08:39,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:08:39,319 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:08:39,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:08:39,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:08:39,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:08:39,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:08:39,320 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:08:39,321 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:08:39,321 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:08:39,321 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_1764f801-ffe9-46f3-a0e1-8538d8f1df99/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-memcleanup) ) 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 -> e5083763cd1026dac92f37bc5a05779baf01a71b [2019-11-16 00:08:39,388 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:08:39,398 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:08:39,401 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:08:39,403 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:08:39,403 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:08:39,404 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/../../sv-benchmarks/c/forester-heap/sll-queue-2.i [2019-11-16 00:08:39,473 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/data/f06e0c908/2d6d3731e7ad4b869e1a65f5bf4e7b33/FLAGbaff3e2e2 [2019-11-16 00:08:39,937 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:08:39,938 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/sv-benchmarks/c/forester-heap/sll-queue-2.i [2019-11-16 00:08:39,957 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/data/f06e0c908/2d6d3731e7ad4b869e1a65f5bf4e7b33/FLAGbaff3e2e2 [2019-11-16 00:08:40,260 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/data/f06e0c908/2d6d3731e7ad4b869e1a65f5bf4e7b33 [2019-11-16 00:08:40,263 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:08:40,264 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-16 00:08:40,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:08:40,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:08:40,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:08:40,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:08:40" (1/1) ... [2019-11-16 00:08:40,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@609e8dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:40, skipping insertion in model container [2019-11-16 00:08:40,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:08:40" (1/1) ... [2019-11-16 00:08:40,281 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:08:40,336 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:08:40,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:08:40,801 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:08:40,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:08:40,903 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:08:40,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:40 WrapperNode [2019-11-16 00:08:40,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:08:40,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:08:40,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:08:40,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:08:40,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:40" (1/1) ... [2019-11-16 00:08:40,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:40" (1/1) ... [2019-11-16 00:08:40,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:40" (1/1) ... [2019-11-16 00:08:40,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:40" (1/1) ... [2019-11-16 00:08:40,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:40" (1/1) ... [2019-11-16 00:08:40,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:40" (1/1) ... [2019-11-16 00:08:40,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:40" (1/1) ... [2019-11-16 00:08:40,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:08:40,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:08:40,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:08:40,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:08:40,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/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 [2019-11-16 00:08:41,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-16 00:08:41,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:08:41,034 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-16 00:08:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-16 00:08:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-16 00:08:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-16 00:08:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-16 00:08:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-16 00:08:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-16 00:08:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-16 00:08:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-16 00:08:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-16 00:08:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-16 00:08:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-16 00:08:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-16 00:08:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-16 00:08:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-16 00:08:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-16 00:08:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-16 00:08:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-16 00:08:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-16 00:08:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-16 00:08:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-16 00:08:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-16 00:08:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-16 00:08:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-16 00:08:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-16 00:08:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-16 00:08:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-16 00:08:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-16 00:08:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-16 00:08:41,039 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-16 00:08:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-16 00:08:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-16 00:08:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-16 00:08:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-16 00:08:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-16 00:08:41,040 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-16 00:08:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-16 00:08:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-16 00:08:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-16 00:08:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-16 00:08:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-16 00:08:41,041 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-16 00:08:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-16 00:08:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-16 00:08:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-16 00:08:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-16 00:08:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-16 00:08:41,042 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-16 00:08:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-16 00:08:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-16 00:08:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-16 00:08:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-16 00:08:41,043 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-16 00:08:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-16 00:08:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-16 00:08:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-16 00:08:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-16 00:08:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-16 00:08:41,044 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-16 00:08:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-16 00:08:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-16 00:08:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-16 00:08:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-16 00:08:41,045 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-16 00:08:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-16 00:08:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-16 00:08:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-16 00:08:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-16 00:08:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-16 00:08:41,046 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-16 00:08:41,047 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-16 00:08:41,047 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-16 00:08:41,047 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-16 00:08:41,047 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-16 00:08:41,047 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-16 00:08:41,048 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-16 00:08:41,048 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-16 00:08:41,048 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-16 00:08:41,048 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-16 00:08:41,048 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-16 00:08:41,049 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-16 00:08:41,049 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-16 00:08:41,049 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-16 00:08:41,049 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-16 00:08:41,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-16 00:08:41,049 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-16 00:08:41,050 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-16 00:08:41,050 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-16 00:08:41,050 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-16 00:08:41,050 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-16 00:08:41,050 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-16 00:08:41,051 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-16 00:08:41,051 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-16 00:08:41,051 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-16 00:08:41,051 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-16 00:08:41,051 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-16 00:08:41,052 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-16 00:08:41,052 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-16 00:08:41,052 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-16 00:08:41,052 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-16 00:08:41,052 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-16 00:08:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-16 00:08:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-16 00:08:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-16 00:08:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-16 00:08:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-16 00:08:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-16 00:08:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-16 00:08:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-16 00:08:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-16 00:08:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-16 00:08:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-16 00:08:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:08:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-16 00:08:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:08:41,997 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:08:41,998 INFO L284 CfgBuilder]: Removed 31 assume(true) statements. [2019-11-16 00:08:41,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:08:41 BoogieIcfgContainer [2019-11-16 00:08:41,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:08:42,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:08:42,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:08:42,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:08:42,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:08:40" (1/3) ... [2019-11-16 00:08:42,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2280b998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:08:42, skipping insertion in model container [2019-11-16 00:08:42,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:40" (2/3) ... [2019-11-16 00:08:42,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2280b998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:08:42, skipping insertion in model container [2019-11-16 00:08:42,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:08:41" (3/3) ... [2019-11-16 00:08:42,009 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-queue-2.i [2019-11-16 00:08:42,018 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:08:42,026 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 56 error locations. [2019-11-16 00:08:42,040 INFO L249 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2019-11-16 00:08:42,057 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:08:42,058 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-16 00:08:42,058 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:08:42,058 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:08:42,058 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:08:42,059 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:08:42,059 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:08:42,060 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:08:42,085 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2019-11-16 00:08:42,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-16 00:08:42,095 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:08:42,103 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:08:42,105 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr51REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-11-16 00:08:42,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:08:42,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1764912395, now seen corresponding path program 1 times [2019-11-16 00:08:42,120 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:08:42,120 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1320779164] [2019-11-16 00:08:42,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1764f801-ffe9-46f3-a0e1-8538d8f1df99/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-16 00:08:42,351 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-16 00:08:42,352 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort C_DOUBLE not declared at de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.NonDeclaringTermTransferrer.transferSort(NonDeclaringTermTransferrer.java:111) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.DeclarableFunctionSymbol.defineOrDeclare(DeclarableFunctionSymbol.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:168) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.SmtFunctionsAndAxioms.transferSymbols(SmtFunctionsAndAxioms.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleTraceCheck.createExternalManagedScript(IpTcStrategyModuleTraceCheck.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCvc4.constructManagedScript(IpTcStrategyModuleCvc4.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-16 00:08:42,356 INFO L168 Benchmark]: Toolchain (without parser) took 2091.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 947.0 MB in the beginning and 1.0 GB in the end (delta: -95.1 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:08:42,357 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:08:42,357 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -179.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:08:42,358 INFO L168 Benchmark]: Boogie Preprocessor took 73.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:08:42,359 INFO L168 Benchmark]: RCFGBuilder took 1019.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:08:42,360 INFO L168 Benchmark]: TraceAbstraction took 354.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:08:42,362 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 639.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -179.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1019.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 354.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Sort C_DOUBLE not declared de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Sort C_DOUBLE not declared: de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...