./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 56b28f59847d63942ec468b0c95f39e5b8c0763a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:50:59,732 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:50:59,733 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:50:59,742 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:50:59,742 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:50:59,743 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:50:59,744 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:50:59,745 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:50:59,746 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:50:59,747 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:50:59,748 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:50:59,748 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:50:59,749 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:50:59,750 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:50:59,750 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:50:59,751 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:50:59,751 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:50:59,753 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:50:59,754 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:50:59,755 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:50:59,756 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:50:59,757 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:50:59,759 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:50:59,759 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:50:59,759 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:50:59,760 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:50:59,761 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:50:59,761 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:50:59,762 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:50:59,762 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:50:59,763 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:50:59,763 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:50:59,763 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:50:59,764 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:50:59,764 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:50:59,765 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:50:59,765 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-18 11:50:59,775 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:50:59,775 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:50:59,776 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:50:59,776 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:50:59,776 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:50:59,776 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:50:59,777 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:50:59,777 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:50:59,777 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:50:59,777 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:50:59,777 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:50:59,777 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 11:50:59,777 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 11:50:59,777 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 11:50:59,778 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:50:59,778 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:50:59,778 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:50:59,778 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:50:59,778 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:50:59,778 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:50:59,778 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:50:59,779 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:50:59,779 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:50:59,779 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:50:59,779 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:50:59,779 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:50:59,779 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56b28f59847d63942ec468b0c95f39e5b8c0763a [2018-11-18 11:50:59,803 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:50:59,813 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:50:59,816 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:50:59,818 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:50:59,818 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:50:59,819 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-memsafety/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-11-18 11:50:59,863 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/data/9b1d97304/e92b4928eccd41bf91b36cea14662676/FLAG818c4432f [2018-11-18 11:51:00,224 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:51:00,225 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/sv-benchmarks/c/ldv-memsafety/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-11-18 11:51:00,229 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/data/9b1d97304/e92b4928eccd41bf91b36cea14662676/FLAG818c4432f [2018-11-18 11:51:00,644 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/data/9b1d97304/e92b4928eccd41bf91b36cea14662676 [2018-11-18 11:51:00,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:51:00,648 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 11:51:00,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:51:00,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:51:00,652 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:51:00,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:51:00" (1/1) ... [2018-11-18 11:51:00,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3328d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:00, skipping insertion in model container [2018-11-18 11:51:00,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:51:00" (1/1) ... [2018-11-18 11:51:00,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:51:00,678 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:51:00,797 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:51:00,804 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:51:00,816 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:51:00,829 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:51:00,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:00 WrapperNode [2018-11-18 11:51:00,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:51:00,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:51:00,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:51:00,830 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:51:00,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:00" (1/1) ... [2018-11-18 11:51:00,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:00" (1/1) ... [2018-11-18 11:51:00,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:00" (1/1) ... [2018-11-18 11:51:00,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:00" (1/1) ... [2018-11-18 11:51:00,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:00" (1/1) ... [2018-11-18 11:51:00,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:00" (1/1) ... [2018-11-18 11:51:00,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:00" (1/1) ... [2018-11-18 11:51:00,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:51:00,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:51:00,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:51:00,858 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:51:00,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/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 [2018-11-18 11:51:00,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:51:00,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:51:00,941 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-11-18 11:51:00,941 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:51:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-11-18 11:51:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 11:51:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:51:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:51:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 11:51:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:51:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:51:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:51:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 11:51:01,135 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:51:01,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:51:01 BoogieIcfgContainer [2018-11-18 11:51:01,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:51:01,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:51:01,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:51:01,139 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:51:01,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:51:00" (1/3) ... [2018-11-18 11:51:01,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27106e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:51:01, skipping insertion in model container [2018-11-18 11:51:01,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:00" (2/3) ... [2018-11-18 11:51:01,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27106e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:51:01, skipping insertion in model container [2018-11-18 11:51:01,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:51:01" (3/3) ... [2018-11-18 11:51:01,142 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-11-18 11:51:01,152 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:51:01,158 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-18 11:51:01,173 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-18 11:51:01,194 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:51:01,195 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:51:01,195 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 11:51:01,195 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:51:01,195 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:51:01,196 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:51:01,196 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:51:01,196 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:51:01,196 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:51:01,207 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-18 11:51:01,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 11:51:01,216 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:01,216 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:01,219 INFO L423 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:01,224 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:01,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1597032710, now seen corresponding path program 1 times [2018-11-18 11:51:01,226 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:01,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:01,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:01,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:01,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:01,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:51:01,318 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:51:01,318 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:51:01,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:51:01,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:51:01,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:51:01,332 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-18 11:51:01,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:01,350 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2018-11-18 11:51:01,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:51:01,352 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-18 11:51:01,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:01,359 INFO L225 Difference]: With dead ends: 43 [2018-11-18 11:51:01,359 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 11:51:01,361 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:51:01,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 11:51:01,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-18 11:51:01,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 11:51:01,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-11-18 11:51:01,389 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 11 [2018-11-18 11:51:01,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:01,389 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-11-18 11:51:01,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:51:01,389 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-11-18 11:51:01,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 11:51:01,390 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:01,390 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:01,390 INFO L423 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:01,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:01,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1820883224, now seen corresponding path program 1 times [2018-11-18 11:51:01,391 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:01,391 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:01,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:01,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:01,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:01,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:51:01,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:51:01,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:51:01,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:51:01,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:51:01,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:51:01,445 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 3 states. [2018-11-18 11:51:01,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:01,500 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2018-11-18 11:51:01,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:51:01,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-18 11:51:01,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:01,504 INFO L225 Difference]: With dead ends: 59 [2018-11-18 11:51:01,505 INFO L226 Difference]: Without dead ends: 59 [2018-11-18 11:51:01,505 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:51:01,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-18 11:51:01,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 44. [2018-11-18 11:51:01,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-18 11:51:01,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2018-11-18 11:51:01,512 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 12 [2018-11-18 11:51:01,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:01,512 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2018-11-18 11:51:01,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:51:01,513 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2018-11-18 11:51:01,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 11:51:01,513 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:01,513 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:01,513 INFO L423 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:01,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:01,513 INFO L82 PathProgramCache]: Analyzing trace with hash 697121729, now seen corresponding path program 1 times [2018-11-18 11:51:01,513 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:01,514 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:01,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:01,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:01,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:01,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:51:01,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:51:01,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:51:01,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:51:01,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:51:01,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:51:01,544 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 3 states. [2018-11-18 11:51:01,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:01,573 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2018-11-18 11:51:01,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:51:01,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-18 11:51:01,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:01,576 INFO L225 Difference]: With dead ends: 55 [2018-11-18 11:51:01,576 INFO L226 Difference]: Without dead ends: 55 [2018-11-18 11:51:01,576 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:51:01,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-18 11:51:01,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2018-11-18 11:51:01,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-18 11:51:01,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2018-11-18 11:51:01,581 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 13 [2018-11-18 11:51:01,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:01,582 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2018-11-18 11:51:01,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:51:01,582 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2018-11-18 11:51:01,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 11:51:01,582 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:01,582 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:01,583 INFO L423 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:01,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:01,583 INFO L82 PathProgramCache]: Analyzing trace with hash 135937166, now seen corresponding path program 1 times [2018-11-18 11:51:01,583 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:01,583 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:01,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:01,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:01,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:01,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:51:01,690 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:51:01,690 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:51:01,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:51:01,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:51:01,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:51:01,691 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 6 states. [2018-11-18 11:51:01,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:01,786 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2018-11-18 11:51:01,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:51:01,787 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-11-18 11:51:01,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:01,787 INFO L225 Difference]: With dead ends: 49 [2018-11-18 11:51:01,788 INFO L226 Difference]: Without dead ends: 49 [2018-11-18 11:51:01,788 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:51:01,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-18 11:51:01,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2018-11-18 11:51:01,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-18 11:51:01,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2018-11-18 11:51:01,792 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 14 [2018-11-18 11:51:01,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:01,792 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2018-11-18 11:51:01,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:51:01,792 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2018-11-18 11:51:01,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 11:51:01,793 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:01,793 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:01,793 INFO L423 AbstractCegarLoop]: === Iteration 5 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:01,793 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:01,794 INFO L82 PathProgramCache]: Analyzing trace with hash 135937165, now seen corresponding path program 1 times [2018-11-18 11:51:01,794 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:01,794 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:01,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:01,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:01,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:01,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:51:01,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:51:01,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 11:51:01,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:51:01,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:51:01,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:51:01,825 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 5 states. [2018-11-18 11:51:01,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:01,869 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2018-11-18 11:51:01,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:51:01,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-18 11:51:01,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:01,871 INFO L225 Difference]: With dead ends: 45 [2018-11-18 11:51:01,871 INFO L226 Difference]: Without dead ends: 45 [2018-11-18 11:51:01,872 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:51:01,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-18 11:51:01,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-18 11:51:01,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-18 11:51:01,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2018-11-18 11:51:01,875 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 14 [2018-11-18 11:51:01,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:01,875 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2018-11-18 11:51:01,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:51:01,875 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2018-11-18 11:51:01,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 11:51:01,876 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:01,876 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:01,876 INFO L423 AbstractCegarLoop]: === Iteration 6 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:01,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:01,879 INFO L82 PathProgramCache]: Analyzing trace with hash -497753495, now seen corresponding path program 1 times [2018-11-18 11:51:01,879 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:01,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:01,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:01,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:01,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:01,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:01,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:51:01,937 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:51:01,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 11:51:01,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:51:01,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:51:01,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:51:01,938 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 6 states. [2018-11-18 11:51:02,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:02,038 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2018-11-18 11:51:02,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:51:02,038 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-11-18 11:51:02,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:02,039 INFO L225 Difference]: With dead ends: 66 [2018-11-18 11:51:02,039 INFO L226 Difference]: Without dead ends: 66 [2018-11-18 11:51:02,040 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:51:02,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-18 11:51:02,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 49. [2018-11-18 11:51:02,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-18 11:51:02,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-11-18 11:51:02,045 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 17 [2018-11-18 11:51:02,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:02,045 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-11-18 11:51:02,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:51:02,045 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-11-18 11:51:02,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 11:51:02,046 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:02,046 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:02,046 INFO L423 AbstractCegarLoop]: === Iteration 7 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:02,046 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:02,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1254753657, now seen corresponding path program 1 times [2018-11-18 11:51:02,047 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:02,047 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:02,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:02,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:02,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:02,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:51:02,106 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:51:02,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 11:51:02,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 11:51:02,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 11:51:02,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:51:02,107 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 7 states. [2018-11-18 11:51:02,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:02,233 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2018-11-18 11:51:02,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:51:02,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-18 11:51:02,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:02,235 INFO L225 Difference]: With dead ends: 78 [2018-11-18 11:51:02,235 INFO L226 Difference]: Without dead ends: 75 [2018-11-18 11:51:02,235 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:51:02,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-18 11:51:02,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 58. [2018-11-18 11:51:02,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-18 11:51:02,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2018-11-18 11:51:02,240 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 19 [2018-11-18 11:51:02,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:02,241 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2018-11-18 11:51:02,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 11:51:02,241 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2018-11-18 11:51:02,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 11:51:02,242 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:02,242 INFO L375 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] [2018-11-18 11:51:02,242 INFO L423 AbstractCegarLoop]: === Iteration 8 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:02,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:02,243 INFO L82 PathProgramCache]: Analyzing trace with hash 539365409, now seen corresponding path program 1 times [2018-11-18 11:51:02,243 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:02,243 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:02,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:02,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:02,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:02,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:51:02,290 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:51:02,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:51:02,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:51:02,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:51:02,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:51:02,292 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 3 states. [2018-11-18 11:51:02,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:02,306 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2018-11-18 11:51:02,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:51:02,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-11-18 11:51:02,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:02,307 INFO L225 Difference]: With dead ends: 56 [2018-11-18 11:51:02,307 INFO L226 Difference]: Without dead ends: 56 [2018-11-18 11:51:02,308 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:51:02,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-18 11:51:02,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-11-18 11:51:02,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-18 11:51:02,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2018-11-18 11:51:02,312 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 23 [2018-11-18 11:51:02,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:02,312 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2018-11-18 11:51:02,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:51:02,313 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2018-11-18 11:51:02,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 11:51:02,313 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:02,313 INFO L375 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] [2018-11-18 11:51:02,313 INFO L423 AbstractCegarLoop]: === Iteration 9 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:02,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:02,314 INFO L82 PathProgramCache]: Analyzing trace with hash 539365410, now seen corresponding path program 1 times [2018-11-18 11:51:02,314 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:02,314 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:02,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:02,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:02,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:02,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:51:02,337 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:51:02,337 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:51:02,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:51:02,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:51:02,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:51:02,338 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 3 states. [2018-11-18 11:51:02,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:02,358 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2018-11-18 11:51:02,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:51:02,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-11-18 11:51:02,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:02,359 INFO L225 Difference]: With dead ends: 60 [2018-11-18 11:51:02,359 INFO L226 Difference]: Without dead ends: 60 [2018-11-18 11:51:02,359 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:51:02,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-18 11:51:02,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2018-11-18 11:51:02,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-18 11:51:02,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2018-11-18 11:51:02,363 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 23 [2018-11-18 11:51:02,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:02,363 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2018-11-18 11:51:02,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:51:02,363 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2018-11-18 11:51:02,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 11:51:02,364 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:02,364 INFO L375 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] [2018-11-18 11:51:02,364 INFO L423 AbstractCegarLoop]: === Iteration 10 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:02,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:02,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1636713196, now seen corresponding path program 1 times [2018-11-18 11:51:02,365 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:02,365 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:02,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:02,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:02,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:02,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:51:02,388 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:51:02,388 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:51:02,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:02,420 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:51:02,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:51:02,464 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:51:02,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-11-18 11:51:02,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:51:02,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:51:02,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:51:02,465 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 5 states. [2018-11-18 11:51:02,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:02,503 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2018-11-18 11:51:02,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:51:02,503 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-18 11:51:02,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:02,504 INFO L225 Difference]: With dead ends: 84 [2018-11-18 11:51:02,504 INFO L226 Difference]: Without dead ends: 84 [2018-11-18 11:51:02,504 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:51:02,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-11-18 11:51:02,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 67. [2018-11-18 11:51:02,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-18 11:51:02,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2018-11-18 11:51:02,509 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 31 [2018-11-18 11:51:02,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:02,510 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2018-11-18 11:51:02,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:51:02,510 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2018-11-18 11:51:02,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 11:51:02,511 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:02,511 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:02,511 INFO L423 AbstractCegarLoop]: === Iteration 11 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:02,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:02,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1366080393, now seen corresponding path program 1 times [2018-11-18 11:51:02,512 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:02,512 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:02,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:02,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:02,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:02,588 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 11:51:02,588 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:51:02,589 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:51:02,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:02,625 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:51:02,666 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 11:51:02,690 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 11:51:02,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2018-11-18 11:51:02,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 11:51:02,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 11:51:02,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:51:02,692 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand 9 states. [2018-11-18 11:51:02,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:02,811 INFO L93 Difference]: Finished difference Result 77 states and 80 transitions. [2018-11-18 11:51:02,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:51:02,812 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-11-18 11:51:02,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:02,813 INFO L225 Difference]: With dead ends: 77 [2018-11-18 11:51:02,813 INFO L226 Difference]: Without dead ends: 74 [2018-11-18 11:51:02,813 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:51:02,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-18 11:51:02,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 67. [2018-11-18 11:51:02,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-18 11:51:02,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2018-11-18 11:51:02,819 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 36 [2018-11-18 11:51:02,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:02,819 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2018-11-18 11:51:02,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 11:51:02,819 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2018-11-18 11:51:02,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 11:51:02,820 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:02,820 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:02,821 INFO L423 AbstractCegarLoop]: === Iteration 12 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:02,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:02,821 INFO L82 PathProgramCache]: Analyzing trace with hash 16259142, now seen corresponding path program 1 times [2018-11-18 11:51:02,821 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:02,821 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:02,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:02,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:02,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:02,890 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 11:51:02,891 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:51:02,891 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:51:02,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:02,931 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:51:02,950 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 11:51:02,968 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:51:02,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 3] total 9 [2018-11-18 11:51:02,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 11:51:02,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 11:51:02,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:51:02,969 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand 10 states. [2018-11-18 11:51:03,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:03,073 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2018-11-18 11:51:03,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 11:51:03,074 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2018-11-18 11:51:03,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:03,074 INFO L225 Difference]: With dead ends: 85 [2018-11-18 11:51:03,074 INFO L226 Difference]: Without dead ends: 85 [2018-11-18 11:51:03,075 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-11-18 11:51:03,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-11-18 11:51:03,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 65. [2018-11-18 11:51:03,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-18 11:51:03,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2018-11-18 11:51:03,078 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 38 [2018-11-18 11:51:03,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:03,078 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2018-11-18 11:51:03,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 11:51:03,078 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2018-11-18 11:51:03,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 11:51:03,079 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:03,079 INFO L375 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:03,079 INFO L423 AbstractCegarLoop]: === Iteration 13 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:03,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:03,079 INFO L82 PathProgramCache]: Analyzing trace with hash 407106671, now seen corresponding path program 2 times [2018-11-18 11:51:03,080 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:03,080 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:03,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:03,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:03,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:03,148 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 11:51:03,148 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:51:03,148 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:51:03,167 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 11:51:03,200 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 11:51:03,201 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:51:03,203 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:51:03,241 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 11:51:03,257 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:51:03,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2018-11-18 11:51:03,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 11:51:03,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 11:51:03,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:51:03,258 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand 10 states. [2018-11-18 11:51:03,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:03,364 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2018-11-18 11:51:03,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 11:51:03,365 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2018-11-18 11:51:03,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:03,366 INFO L225 Difference]: With dead ends: 82 [2018-11-18 11:51:03,366 INFO L226 Difference]: Without dead ends: 79 [2018-11-18 11:51:03,366 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-11-18 11:51:03,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-11-18 11:51:03,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 71. [2018-11-18 11:51:03,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-18 11:51:03,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 76 transitions. [2018-11-18 11:51:03,368 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 76 transitions. Word has length 42 [2018-11-18 11:51:03,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:03,368 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 76 transitions. [2018-11-18 11:51:03,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 11:51:03,368 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 76 transitions. [2018-11-18 11:51:03,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 11:51:03,369 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:03,369 INFO L375 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:03,370 INFO L423 AbstractCegarLoop]: === Iteration 14 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:03,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:03,370 INFO L82 PathProgramCache]: Analyzing trace with hash 528403047, now seen corresponding path program 3 times [2018-11-18 11:51:03,370 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:03,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:03,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:03,371 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:51:03,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:03,436 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-18 11:51:03,436 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:51:03,436 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:51:03,447 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 11:51:03,464 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-18 11:51:03,465 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:51:03,467 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:51:03,509 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 5 treesize of output 1 [2018-11-18 11:51:03,509 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 11:51:03,516 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2018-11-18 11:51:03,518 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:51:03,519 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-11-18 11:51:03,519 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 11:51:03,524 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:51:03,530 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 11:51:03,530 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:24, output treesize:17 [2018-11-18 11:51:03,631 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-11-18 11:51:03,647 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:51:03,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-11-18 11:51:03,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 11:51:03,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 11:51:03,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:51:03,648 INFO L87 Difference]: Start difference. First operand 71 states and 76 transitions. Second operand 8 states. [2018-11-18 11:51:03,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:03,710 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2018-11-18 11:51:03,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:51:03,710 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2018-11-18 11:51:03,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:03,711 INFO L225 Difference]: With dead ends: 76 [2018-11-18 11:51:03,711 INFO L226 Difference]: Without dead ends: 76 [2018-11-18 11:51:03,711 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:51:03,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-11-18 11:51:03,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2018-11-18 11:51:03,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-18 11:51:03,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 80 transitions. [2018-11-18 11:51:03,715 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 80 transitions. Word has length 48 [2018-11-18 11:51:03,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:03,715 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 80 transitions. [2018-11-18 11:51:03,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 11:51:03,715 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 80 transitions. [2018-11-18 11:51:03,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 11:51:03,716 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:03,716 INFO L375 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:03,717 INFO L423 AbstractCegarLoop]: === Iteration 15 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:03,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:03,717 INFO L82 PathProgramCache]: Analyzing trace with hash 939452465, now seen corresponding path program 2 times [2018-11-18 11:51:03,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:03,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:03,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:03,718 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:51:03,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:03,770 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-11-18 11:51:03,770 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:51:03,770 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:51:03,786 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 11:51:03,804 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 11:51:03,805 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:51:03,807 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:51:03,826 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 5 treesize of output 1 [2018-11-18 11:51:03,826 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 11:51:03,831 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 9 treesize of output 12 [2018-11-18 11:51:03,833 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:51:03,834 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-11-18 11:51:03,835 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 11:51:03,840 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:51:03,848 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 11:51:03,848 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2018-11-18 11:51:03,955 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2018-11-18 11:51:03,971 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 11:51:03,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2018-11-18 11:51:03,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 11:51:03,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 11:51:03,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:51:03,972 INFO L87 Difference]: Start difference. First operand 74 states and 80 transitions. Second operand 9 states. [2018-11-18 11:51:04,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:04,141 INFO L93 Difference]: Finished difference Result 102 states and 107 transitions. [2018-11-18 11:51:04,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 11:51:04,142 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2018-11-18 11:51:04,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:04,143 INFO L225 Difference]: With dead ends: 102 [2018-11-18 11:51:04,143 INFO L226 Difference]: Without dead ends: 102 [2018-11-18 11:51:04,143 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2018-11-18 11:51:04,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-11-18 11:51:04,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 93. [2018-11-18 11:51:04,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-11-18 11:51:04,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 101 transitions. [2018-11-18 11:51:04,147 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 101 transitions. Word has length 56 [2018-11-18 11:51:04,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:04,147 INFO L480 AbstractCegarLoop]: Abstraction has 93 states and 101 transitions. [2018-11-18 11:51:04,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 11:51:04,147 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 101 transitions. [2018-11-18 11:51:04,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-11-18 11:51:04,152 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:04,152 INFO L375 BasicCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:04,153 INFO L423 AbstractCegarLoop]: === Iteration 16 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:04,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:04,153 INFO L82 PathProgramCache]: Analyzing trace with hash -912013926, now seen corresponding path program 1 times [2018-11-18 11:51:04,153 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:04,153 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:04,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:04,154 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:51:04,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:04,219 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2018-11-18 11:51:04,220 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:51:04,220 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:51:04,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:04,273 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:51:04,357 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 204 proven. 10 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-11-18 11:51:04,374 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:51:04,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2018-11-18 11:51:04,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 11:51:04,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 11:51:04,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-11-18 11:51:04,375 INFO L87 Difference]: Start difference. First operand 93 states and 101 transitions. Second operand 14 states. [2018-11-18 11:51:04,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:04,615 INFO L93 Difference]: Finished difference Result 169 states and 178 transitions. [2018-11-18 11:51:04,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 11:51:04,616 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 109 [2018-11-18 11:51:04,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:04,617 INFO L225 Difference]: With dead ends: 169 [2018-11-18 11:51:04,617 INFO L226 Difference]: Without dead ends: 169 [2018-11-18 11:51:04,618 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2018-11-18 11:51:04,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-11-18 11:51:04,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 129. [2018-11-18 11:51:04,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-11-18 11:51:04,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 140 transitions. [2018-11-18 11:51:04,626 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 140 transitions. Word has length 109 [2018-11-18 11:51:04,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:04,626 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 140 transitions. [2018-11-18 11:51:04,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 11:51:04,626 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 140 transitions. [2018-11-18 11:51:04,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-18 11:51:04,628 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:04,632 INFO L375 BasicCegarLoop]: trace histogram [17, 12, 12, 12, 12, 12, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:04,633 INFO L423 AbstractCegarLoop]: === Iteration 17 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-18 11:51:04,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:04,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1125322585, now seen corresponding path program 2 times [2018-11-18 11:51:04,633 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:04,633 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:04,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:04,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:04,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:04,751 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2018-11-18 11:51:04,752 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:51:04,752 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:51:04,767 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 11:51:04,793 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 11:51:04,793 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:51:04,798 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:51:04,849 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:51:04,850 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-18 11:51:04,853 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-18 11:51:04,853 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 11:51:04,858 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:51:04,863 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 11:51:04,863 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-11-18 11:51:04,902 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:51:04,903 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-18 11:51:04,905 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-18 11:51:04,906 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 11:51:04,910 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:51:04,915 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 11:51:04,915 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-11-18 11:51:04,961 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:51:04,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-18 11:51:04,964 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-18 11:51:04,965 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 11:51:04,969 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:51:04,976 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 11:51:04,976 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-11-18 11:51:05,021 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:51:05,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-18 11:51:05,026 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-18 11:51:05,027 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 11:51:05,031 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:51:05,043 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 11:51:05,043 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-11-18 11:51:05,093 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 11:51:05,094 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-18 11:51:05,101 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-18 11:51:05,102 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 11:51:05,106 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:51:05,110 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 11:51:05,111 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-11-18 11:51:05,697 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2018-11-18 11:51:05,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 11:51:05,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2018-11-18 11:51:05,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 11:51:05,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 11:51:05,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=93, Unknown=1, NotChecked=0, Total=132 [2018-11-18 11:51:05,716 INFO L87 Difference]: Start difference. First operand 129 states and 140 transitions. Second operand 12 states. [2018-11-18 11:51:19,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:19,850 INFO L93 Difference]: Finished difference Result 160 states and 169 transitions. [2018-11-18 11:51:19,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 11:51:19,851 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 152 [2018-11-18 11:51:19,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:19,851 INFO L225 Difference]: With dead ends: 160 [2018-11-18 11:51:19,851 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 11:51:19,851 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 141 SyntacticMatches, 9 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=162, Invalid=437, Unknown=1, NotChecked=0, Total=600 [2018-11-18 11:51:19,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 11:51:19,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 11:51:19,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 11:51:19,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 11:51:19,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2018-11-18 11:51:19,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:19,852 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:51:19,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 11:51:19,852 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:51:19,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 11:51:19,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:51:19 BoogieIcfgContainer [2018-11-18 11:51:19,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:51:19,856 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:51:19,856 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:51:19,856 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:51:19,856 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:51:01" (3/4) ... [2018-11-18 11:51:19,860 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 11:51:19,865 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 11:51:19,865 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2018-11-18 11:51:19,865 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 11:51:19,868 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-18 11:51:19,868 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 11:51:19,869 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 11:51:19,869 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 11:51:19,897 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5824d6b7-da50-4924-8061-aaa06d078024/bin-2019/uautomizer/witness.graphml [2018-11-18 11:51:19,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:51:19,898 INFO L168 Benchmark]: Toolchain (without parser) took 19250.60 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 304.6 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 121.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:51:19,899 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:51:19,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.41 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:51:19,900 INFO L168 Benchmark]: Boogie Preprocessor took 27.63 ms. Allocated memory is still 1.0 GB. Free memory was 948.2 MB in the beginning and 945.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:51:19,900 INFO L168 Benchmark]: RCFGBuilder took 278.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -143.6 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:51:19,901 INFO L168 Benchmark]: TraceAbstraction took 18719.16 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 185.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -53.1 MB). Peak memory consumption was 132.0 MB. Max. memory is 11.5 GB. [2018-11-18 11:51:19,901 INFO L168 Benchmark]: Witness Printer took 41.82 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:51:19,903 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.41 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.63 ms. Allocated memory is still 1.0 GB. Free memory was 948.2 MB in the beginning and 945.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 278.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -143.6 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18719.16 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 185.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -53.1 MB). Peak memory consumption was 132.0 MB. Max. memory is 11.5 GB. * Witness Printer took 41.82 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 27]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 27]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 30]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 30]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 23]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 43 locations, 8 error locations. SAFE Result, 18.6s OverallTime, 17 OverallIterations, 17 TraceHistogramMax, 15.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 510 SDtfs, 948 SDslu, 1262 SDs, 0 SdLazy, 1556 SolverSat, 207 SolverUnsat, 19 SolverUnknown, 0 SolverNotchecked, 14.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 631 GetRequests, 494 SyntacticMatches, 16 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 17 MinimizatonAttempts, 165 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1170 NumberOfCodeBlocks, 977 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1145 ConstructedInterpolants, 195 QuantifiedInterpolants, 591199 SizeOfPredicates, 12 NumberOfNonLiveVariables, 978 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 25 InterpolantComputations, 12 PerfectInterpolantSequences, 1972/2163 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...