./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/lcp.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/lcp.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 99469a4d9e5d9407366653a2d47248a07b3d0735 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/lcp.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 99469a4d9e5d9407366653a2d47248a07b3d0735 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:13:20,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:13:20,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:13:20,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:13:20,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:13:20,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:13:20,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:13:20,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:13:20,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:13:20,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:13:20,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:13:20,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:13:20,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:13:20,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:13:20,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:13:20,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:13:21,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:13:21,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:13:21,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:13:21,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:13:21,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:13:21,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:13:21,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:13:21,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:13:21,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:13:21,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:13:21,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:13:21,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:13:21,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:13:21,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:13:21,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:13:21,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:13:21,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:13:21,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:13:21,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:13:21,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:13:21,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:13:21,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:13:21,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:13:21,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:13:21,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:13:21,044 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:13:21,074 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:13:21,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:13:21,076 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:13:21,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:13:21,076 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:13:21,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:13:21,077 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:13:21,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:13:21,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:13:21,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:13:21,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:13:21,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:13:21,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:13:21,079 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:13:21,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:13:21,080 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:13:21,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:13:21,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:13:21,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:13:21,081 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:13:21,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:13:21,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:13:21,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:13:21,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:13:21,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:13:21,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:13:21,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:13:21,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:13:21,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:13:21,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99469a4d9e5d9407366653a2d47248a07b3d0735 [2020-11-30 01:13:21,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:13:21,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:13:21,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:13:21,420 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:13:21,427 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:13:21,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/../../sv-benchmarks/c/verifythis/lcp.c [2020-11-30 01:13:21,543 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/data/0e6c21589/f05d4110745c449f98acd47e8fe25580/FLAGa6d1b778b [2020-11-30 01:13:22,086 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:13:22,087 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/sv-benchmarks/c/verifythis/lcp.c [2020-11-30 01:13:22,094 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/data/0e6c21589/f05d4110745c449f98acd47e8fe25580/FLAGa6d1b778b [2020-11-30 01:13:22,440 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/data/0e6c21589/f05d4110745c449f98acd47e8fe25580 [2020-11-30 01:13:22,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:13:22,446 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:13:22,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:13:22,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:13:22,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:13:22,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:13:22" (1/1) ... [2020-11-30 01:13:22,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6729b3da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:22, skipping insertion in model container [2020-11-30 01:13:22,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:13:22" (1/1) ... [2020-11-30 01:13:22,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:13:22,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:13:22,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:13:22,743 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:13:22,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:13:22,793 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:13:22,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:22 WrapperNode [2020-11-30 01:13:22,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:13:22,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:13:22,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:13:22,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:13:22,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:22" (1/1) ... [2020-11-30 01:13:22,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:22" (1/1) ... [2020-11-30 01:13:22,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:13:22,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:13:22,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:13:22,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:13:22,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:22" (1/1) ... [2020-11-30 01:13:22,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:22" (1/1) ... [2020-11-30 01:13:22,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:22" (1/1) ... [2020-11-30 01:13:22,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:22" (1/1) ... [2020-11-30 01:13:22,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:22" (1/1) ... [2020-11-30 01:13:22,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:22" (1/1) ... [2020-11-30 01:13:22,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:22" (1/1) ... [2020-11-30 01:13:22,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:13:22,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:13:22,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:13:22,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:13:22,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:13:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:13:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:13:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 01:13:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:13:22,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:13:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:13:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:13:23,494 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:13:23,495 INFO L298 CfgBuilder]: Removed 25 assume(true) statements. [2020-11-30 01:13:23,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:13:23 BoogieIcfgContainer [2020-11-30 01:13:23,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:13:23,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:13:23,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:13:23,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:13:23,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:13:22" (1/3) ... [2020-11-30 01:13:23,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b59a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:13:23, skipping insertion in model container [2020-11-30 01:13:23,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:22" (2/3) ... [2020-11-30 01:13:23,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b59a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:13:23, skipping insertion in model container [2020-11-30 01:13:23,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:13:23" (3/3) ... [2020-11-30 01:13:23,509 INFO L111 eAbstractionObserver]: Analyzing ICFG lcp.c [2020-11-30 01:13:23,524 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:13:23,529 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-30 01:13:23,552 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-30 01:13:23,613 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:13:23,614 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:13:23,614 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:13:23,614 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:13:23,614 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:13:23,614 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:13:23,615 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:13:23,615 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:13:23,638 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-11-30 01:13:23,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 01:13:23,649 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:13:23,651 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:23,651 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:13:23,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:23,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1579702917, now seen corresponding path program 1 times [2020-11-30 01:13:23,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:13:23,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019278486] [2020-11-30 01:13:23,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:13:23,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:13:23,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:13:23,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019278486] [2020-11-30 01:13:23,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:13:23,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:13:23,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980095293] [2020-11-30 01:13:23,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:13:23,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:13:23,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:13:23,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:13:23,990 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2020-11-30 01:13:24,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:13:24,014 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2020-11-30 01:13:24,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:13:24,016 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-11-30 01:13:24,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:13:24,038 INFO L225 Difference]: With dead ends: 53 [2020-11-30 01:13:24,039 INFO L226 Difference]: Without dead ends: 22 [2020-11-30 01:13:24,042 INFO L677 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 [2020-11-30 01:13:24,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-30 01:13:24,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-30 01:13:24,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 01:13:24,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-11-30 01:13:24,092 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 14 [2020-11-30 01:13:24,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:13:24,094 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-11-30 01:13:24,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:13:24,094 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-11-30 01:13:24,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:13:24,096 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:13:24,096 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:24,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:13:24,098 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:13:24,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:24,102 INFO L82 PathProgramCache]: Analyzing trace with hash 588290746, now seen corresponding path program 1 times [2020-11-30 01:13:24,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:13:24,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722914255] [2020-11-30 01:13:24,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:13:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:13:24,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:13:24,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722914255] [2020-11-30 01:13:24,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:13:24,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:13:24,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018621229] [2020-11-30 01:13:24,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:13:24,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:13:24,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:13:24,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:13:24,382 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 6 states. [2020-11-30 01:13:24,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:13:24,563 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-11-30 01:13:24,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:13:24,565 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-30 01:13:24,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:13:24,566 INFO L225 Difference]: With dead ends: 35 [2020-11-30 01:13:24,566 INFO L226 Difference]: Without dead ends: 23 [2020-11-30 01:13:24,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:13:24,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-30 01:13:24,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-11-30 01:13:24,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-30 01:13:24,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-11-30 01:13:24,583 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-11-30 01:13:24,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:13:24,585 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-11-30 01:13:24,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:13:24,585 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-11-30 01:13:24,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:13:24,589 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:13:24,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:24,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:13:24,591 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:13:24,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:24,595 INFO L82 PathProgramCache]: Analyzing trace with hash -221055880, now seen corresponding path program 1 times [2020-11-30 01:13:24,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:13:24,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202452236] [2020-11-30 01:13:24,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:13:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:13:24,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:13:24,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202452236] [2020-11-30 01:13:24,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:13:24,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:13:24,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024950335] [2020-11-30 01:13:24,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:13:24,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:13:24,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:13:24,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:13:24,752 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 6 states. [2020-11-30 01:13:24,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:13:24,861 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2020-11-30 01:13:24,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:13:24,862 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-30 01:13:24,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:13:24,863 INFO L225 Difference]: With dead ends: 23 [2020-11-30 01:13:24,863 INFO L226 Difference]: Without dead ends: 21 [2020-11-30 01:13:24,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:13:24,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-30 01:13:24,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-30 01:13:24,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-30 01:13:24,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-30 01:13:24,869 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 16 [2020-11-30 01:13:24,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:13:24,870 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-30 01:13:24,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:13:24,871 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-30 01:13:24,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 01:13:24,872 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:13:24,872 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:24,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:13:24,872 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:13:24,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:24,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1285045979, now seen corresponding path program 1 times [2020-11-30 01:13:24,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:13:24,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152584217] [2020-11-30 01:13:24,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:13:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:13:25,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:13:25,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152584217] [2020-11-30 01:13:25,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:13:25,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 01:13:25,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108141727] [2020-11-30 01:13:25,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:13:25,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:13:25,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:13:25,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:13:25,249 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 7 states. [2020-11-30 01:13:25,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:13:25,697 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2020-11-30 01:13:25,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:13:25,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-30 01:13:25,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:13:25,703 INFO L225 Difference]: With dead ends: 35 [2020-11-30 01:13:25,703 INFO L226 Difference]: Without dead ends: 25 [2020-11-30 01:13:25,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-30 01:13:25,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-30 01:13:25,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2020-11-30 01:13:25,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-30 01:13:25,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2020-11-30 01:13:25,711 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 19 [2020-11-30 01:13:25,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:13:25,712 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2020-11-30 01:13:25,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:13:25,712 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2020-11-30 01:13:25,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 01:13:25,715 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:13:25,715 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:25,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:13:25,716 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:13:25,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:25,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1576111284, now seen corresponding path program 1 times [2020-11-30 01:13:25,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:13:25,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344857570] [2020-11-30 01:13:25,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:13:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:13:25,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 01:13:25,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344857570] [2020-11-30 01:13:25,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598791315] [2020-11-30 01:13:25,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:13:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:13:26,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 20 conjunts are in the unsatisfiable core [2020-11-30 01:13:26,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:13:26,149 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:26,157 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:26,166 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:26,168 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:26,181 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:26,183 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:26,205 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:26,276 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:26,282 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:26,288 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:26,290 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:26,318 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 01:13:26,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:13:26,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-11-30 01:13:26,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384362323] [2020-11-30 01:13:26,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:13:26,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:13:26,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:13:26,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:13:26,321 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 8 states. [2020-11-30 01:13:26,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:13:26,590 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2020-11-30 01:13:26,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:13:26,591 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-11-30 01:13:26,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:13:26,592 INFO L225 Difference]: With dead ends: 26 [2020-11-30 01:13:26,592 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:13:26,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:13:26,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:13:26,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:13:26,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:13:26,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:13:26,594 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-11-30 01:13:26,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:13:26,594 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:13:26,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:13:26,594 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:13:26,594 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:13:26,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:13:26,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:13:26,970 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2020-11-30 01:13:27,013 INFO L274 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-11-30 01:13:27,013 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2020-11-30 01:13:27,014 INFO L277 CegarLoopResult]: At program point L48(lines 35 49) the Hoare annotation is: true [2020-11-30 01:13:27,014 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-11-30 01:13:27,014 INFO L274 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-11-30 01:13:27,014 INFO L274 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-11-30 01:13:27,014 INFO L274 CegarLoopResult]: For program point L11-3(line 11) no Hoare annotation was computed. [2020-11-30 01:13:27,015 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:13:27,015 INFO L274 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-11-30 01:13:27,015 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:13:27,015 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:13:27,015 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2020-11-30 01:13:27,015 INFO L274 CegarLoopResult]: For program point L24(lines 24 33) no Hoare annotation was computed. [2020-11-30 01:13:27,015 INFO L274 CegarLoopResult]: For program point L12(lines 12 14) no Hoare annotation was computed. [2020-11-30 01:13:27,016 INFO L274 CegarLoopResult]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2020-11-30 01:13:27,016 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:13:27,016 INFO L270 CegarLoopResult]: At program point L21(lines 16 22) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= ULTIMATE.start_main_~n~0 ULTIMATE.start_lcp_~n) (or (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~y~0 |ULTIMATE.start_lcp_#res|)) (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~x~0 |ULTIMATE.start_lcp_#res|))) (= (select |#memory_int| ULTIMATE.start_lcp_~a.base) .cse0) (or (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_lcp_~l~0 ULTIMATE.start_main_~x~0)) (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_lcp_~l~0 ULTIMATE.start_main_~y~0))) (<= ULTIMATE.start_lcp_~x ULTIMATE.start_main_~x~0) (= (select |#memory_int| |ULTIMATE.start_main_#t~malloc18.base|) .cse0) (= (select |#memory_int| ULTIMATE.start_main_~a~0.base) .cse0) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_lcp_~y))) [2020-11-30 01:13:27,016 INFO L274 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-11-30 01:13:27,017 INFO L274 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-11-30 01:13:27,017 INFO L274 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed. [2020-11-30 01:13:27,017 INFO L274 CegarLoopResult]: For program point L5-1(lines 5 7) no Hoare annotation was computed. [2020-11-30 01:13:27,017 INFO L274 CegarLoopResult]: For program point L5-2(lines 5 7) no Hoare annotation was computed. [2020-11-30 01:13:27,017 INFO L274 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-11-30 01:13:27,017 INFO L274 CegarLoopResult]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:13:27,018 INFO L270 CegarLoopResult]: At program point L18-5(lines 18 20) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= ULTIMATE.start_main_~n~0 ULTIMATE.start_lcp_~n) (= (select |#memory_int| ULTIMATE.start_lcp_~a.base) .cse0) (<= ULTIMATE.start_lcp_~x ULTIMATE.start_main_~x~0) (= (select |#memory_int| |ULTIMATE.start_main_#t~malloc18.base|) .cse0) (= (select |#memory_int| ULTIMATE.start_main_~a~0.base) .cse0) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_lcp_~y))) [2020-11-30 01:13:27,018 INFO L274 CegarLoopResult]: For program point L18-6(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:13:27,018 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-11-30 01:13:27,018 INFO L274 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed. [2020-11-30 01:13:27,018 INFO L274 CegarLoopResult]: For program point L6-4(line 6) no Hoare annotation was computed. [2020-11-30 01:13:27,033 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-30 01:13:27,037 INFO L168 Benchmark]: Toolchain (without parser) took 4589.73 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 78.9 MB in the beginning and 106.1 MB in the end (delta: -27.2 MB). Peak memory consumption was 64.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:27,038 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 77.6 MB. Free memory was 37.3 MB in the beginning and 37.3 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:13:27,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.18 ms. Allocated memory is still 111.1 MB. Free memory was 78.9 MB in the beginning and 86.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:27,047 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.95 ms. Allocated memory is still 111.1 MB. Free memory was 86.2 MB in the beginning and 84.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:27,048 INFO L168 Benchmark]: Boogie Preprocessor took 63.24 ms. Allocated memory is still 111.1 MB. Free memory was 84.0 MB in the beginning and 82.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:27,048 INFO L168 Benchmark]: RCFGBuilder took 573.77 ms. Allocated memory is still 111.1 MB. Free memory was 82.6 MB in the beginning and 64.4 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:27,049 INFO L168 Benchmark]: TraceAbstraction took 3534.67 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 63.8 MB in the beginning and 106.1 MB in the end (delta: -42.3 MB). Peak memory consumption was 50.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:27,061 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 77.6 MB. Free memory was 37.3 MB in the beginning and 37.3 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 347.18 ms. Allocated memory is still 111.1 MB. Free memory was 78.9 MB in the beginning and 86.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.95 ms. Allocated memory is still 111.1 MB. Free memory was 86.2 MB in the beginning and 84.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.24 ms. Allocated memory is still 111.1 MB. Free memory was 84.0 MB in the beginning and 82.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 573.77 ms. Allocated memory is still 111.1 MB. Free memory was 82.6 MB in the beginning and 64.4 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3534.67 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 63.8 MB in the beginning and 106.1 MB in the end (delta: -42.3 MB). Peak memory consumption was 50.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 11]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:13:30,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:13:30,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:13:30,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:13:30,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:13:30,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:13:30,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:13:30,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:13:30,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:13:30,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:13:30,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:13:30,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:13:30,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:13:30,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:13:30,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:13:30,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:13:30,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:13:30,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:13:30,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:13:30,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:13:30,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:13:30,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:13:30,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:13:30,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:13:30,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:13:30,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:13:30,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:13:30,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:13:30,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:13:30,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:13:30,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:13:30,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:13:30,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:13:30,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:13:30,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:13:30,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:13:30,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:13:30,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:13:30,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:13:30,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:13:30,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:13:30,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 01:13:30,321 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:13:30,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:13:30,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:13:30,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:13:30,324 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:13:30,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:13:30,325 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:13:30,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:13:30,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:13:30,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:13:30,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:13:30,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:13:30,328 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:13:30,329 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:13:30,329 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:13:30,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:13:30,330 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:13:30,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:13:30,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:13:30,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:13:30,332 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:13:30,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:13:30,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:13:30,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:13:30,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:13:30,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:13:30,335 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 01:13:30,335 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:13:30,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:13:30,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:13:30,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:13:30,336 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99469a4d9e5d9407366653a2d47248a07b3d0735 [2020-11-30 01:13:30,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:13:30,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:13:30,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:13:30,835 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:13:30,836 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:13:30,837 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/../../sv-benchmarks/c/verifythis/lcp.c [2020-11-30 01:13:30,935 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/data/fc897ed40/4824260a49ac4499b93750191dec0dde/FLAG93c357506 [2020-11-30 01:13:31,598 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:13:31,599 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/sv-benchmarks/c/verifythis/lcp.c [2020-11-30 01:13:31,607 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/data/fc897ed40/4824260a49ac4499b93750191dec0dde/FLAG93c357506 [2020-11-30 01:13:31,944 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/data/fc897ed40/4824260a49ac4499b93750191dec0dde [2020-11-30 01:13:31,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:13:31,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:13:31,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:13:31,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:13:31,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:13:31,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:13:31" (1/1) ... [2020-11-30 01:13:31,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a97aa3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:31, skipping insertion in model container [2020-11-30 01:13:31,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:13:31" (1/1) ... [2020-11-30 01:13:31,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:13:31,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:13:32,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:13:32,267 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:13:32,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:13:32,327 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:13:32,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32 WrapperNode [2020-11-30 01:13:32,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:13:32,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:13:32,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:13:32,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:13:32,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:32,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:32,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:13:32,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:13:32,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:13:32,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:13:32,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:32,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:32,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:32,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:32,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:32,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:32,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:32,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:13:32,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:13:32,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:13:32,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:13:32,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:13:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:13:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:13:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 01:13:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 01:13:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:13:32,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:13:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:13:33,298 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:13:33,299 INFO L298 CfgBuilder]: Removed 25 assume(true) statements. [2020-11-30 01:13:33,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:13:33 BoogieIcfgContainer [2020-11-30 01:13:33,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:13:33,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:13:33,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:13:33,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:13:33,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:13:31" (1/3) ... [2020-11-30 01:13:33,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0c3b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:13:33, skipping insertion in model container [2020-11-30 01:13:33,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (2/3) ... [2020-11-30 01:13:33,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0c3b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:13:33, skipping insertion in model container [2020-11-30 01:13:33,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:13:33" (3/3) ... [2020-11-30 01:13:33,313 INFO L111 eAbstractionObserver]: Analyzing ICFG lcp.c [2020-11-30 01:13:33,327 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:13:33,332 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-30 01:13:33,346 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-30 01:13:33,391 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:13:33,392 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:13:33,392 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:13:33,392 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:13:33,392 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:13:33,393 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:13:33,393 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:13:33,393 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:13:33,409 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-11-30 01:13:33,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 01:13:33,416 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:13:33,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:33,417 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:13:33,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:33,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1579702917, now seen corresponding path program 1 times [2020-11-30 01:13:33,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:13:33,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742776333] [2020-11-30 01:13:33,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 01:13:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:13:33,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 01:13:33,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:13:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:13:33,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:13:33,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:13:33,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742776333] [2020-11-30 01:13:33,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:13:33,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 01:13:33,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136023841] [2020-11-30 01:13:33,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:13:33,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:13:33,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:13:33,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:13:33,753 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2020-11-30 01:13:33,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:13:33,779 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2020-11-30 01:13:33,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:13:33,781 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-11-30 01:13:33,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:13:33,792 INFO L225 Difference]: With dead ends: 53 [2020-11-30 01:13:33,793 INFO L226 Difference]: Without dead ends: 22 [2020-11-30 01:13:33,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:13:33,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-30 01:13:33,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-30 01:13:33,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 01:13:33,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-11-30 01:13:33,844 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 14 [2020-11-30 01:13:33,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:13:33,845 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-11-30 01:13:33,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:13:33,846 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-11-30 01:13:33,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:13:33,847 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:13:33,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:34,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:13:34,058 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:13:34,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:34,059 INFO L82 PathProgramCache]: Analyzing trace with hash 588290746, now seen corresponding path program 1 times [2020-11-30 01:13:34,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:13:34,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887137949] [2020-11-30 01:13:34,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 01:13:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:13:34,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 01:13:34,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:13:34,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:13:34,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:13:34,305 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:13:34,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:13:34,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887137949] [2020-11-30 01:13:34,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:13:34,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-11-30 01:13:34,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620402473] [2020-11-30 01:13:34,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:13:34,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:13:34,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:13:34,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:13:34,406 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 7 states. [2020-11-30 01:13:34,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:13:34,586 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2020-11-30 01:13:34,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:13:34,589 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-11-30 01:13:34,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:13:34,590 INFO L225 Difference]: With dead ends: 37 [2020-11-30 01:13:34,590 INFO L226 Difference]: Without dead ends: 25 [2020-11-30 01:13:34,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:13:34,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-30 01:13:34,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-30 01:13:34,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-30 01:13:34,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-11-30 01:13:34,604 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 16 [2020-11-30 01:13:34,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:13:34,605 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-11-30 01:13:34,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:13:34,606 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-11-30 01:13:34,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 01:13:34,608 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:13:34,608 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:34,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:13:34,809 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:13:34,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:34,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1407848843, now seen corresponding path program 1 times [2020-11-30 01:13:34,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:13:34,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123412795] [2020-11-30 01:13:34,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 01:13:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:13:35,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 36 conjunts are in the unsatisfiable core [2020-11-30 01:13:35,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:13:35,496 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:35,606 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:37,857 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-11-30 01:13:37,859 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:13:37,859 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 104 [2020-11-30 01:13:37,870 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:13:37,872 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:13:37,874 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:37,880 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:13:37,882 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:13:37,885 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 1] term [2020-11-30 01:13:37,885 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:37,895 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:13:37,897 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:37,910 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:13:37,912 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:37,926 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:13:37,955 INFO L625 ElimStorePlain]: treesize reduction 104, result has 2.8 percent of original size [2020-11-30 01:13:37,955 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:13:37,956 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:53, output treesize:3 [2020-11-30 01:13:37,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:13:37,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:13:44,423 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:13:51,449 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-30 01:13:51,450 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:13:51,450 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 152 [2020-11-30 01:13:51,455 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-11-30 01:13:51,457 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-11-30 01:13:51,458 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:13:51,467 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-11-30 01:13:51,469 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-11-30 01:13:51,471 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 01:13:51,473 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-11-30 01:13:51,482 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-11-30 01:13:51,486 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 01:13:51,487 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-11-30 01:13:51,495 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 4 xjuncts. [2020-11-30 01:13:52,590 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2020-11-30 01:13:52,593 INFO L625 ElimStorePlain]: treesize reduction 501, result has 26.1 percent of original size [2020-11-30 01:13:52,595 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-11-30 01:13:52,596 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 01:13:52,605 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:13:52,606 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:62, output treesize:177 [2020-11-30 01:13:52,608 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-11-30 01:13:52,609 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 01:13:53,527 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-11-30 01:13:53,530 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 01:13:54,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123412795] [2020-11-30 01:13:54,805 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Unsupported sort (_ BitVec 32) [2020-11-30 01:13:54,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1653475010] [2020-11-30 01:13:54,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-30 01:13:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:13:55,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-30 01:13:55,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:13:55,046 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2020-11-30 01:13:55,046 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:13:55,052 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:13:55,053 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:13:55,053 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:7, output treesize:6 [2020-11-30 01:13:55,432 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:13:55,531 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 01:13:55,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:14:15,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 01:14:15,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:14:15,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-11-30 01:14:15,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831437629] [2020-11-30 01:14:15,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 01:14:15,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:14:15,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 01:14:15,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=522, Unknown=14, NotChecked=0, Total=600 [2020-11-30 01:14:15,467 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 9 states. [2020-11-30 01:14:15,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:14:15,835 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2020-11-30 01:14:15,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:14:15,838 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-11-30 01:14:15,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:14:15,840 INFO L225 Difference]: With dead ends: 39 [2020-11-30 01:14:15,840 INFO L226 Difference]: Without dead ends: 27 [2020-11-30 01:14:15,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 36.3s TimeCoverageRelationStatistics Valid=99, Invalid=643, Unknown=14, NotChecked=0, Total=756 [2020-11-30 01:14:15,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-30 01:14:15,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2020-11-30 01:14:15,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-30 01:14:15,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-11-30 01:14:15,846 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 19 [2020-11-30 01:14:15,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:14:15,846 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-11-30 01:14:15,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 01:14:15,846 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-11-30 01:14:15,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 01:14:15,847 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:14:15,847 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:14:16,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3,5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-30 01:14:16,249 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:14:16,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:14:16,249 INFO L82 PathProgramCache]: Analyzing trace with hash 598502217, now seen corresponding path program 1 times [2020-11-30 01:14:16,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:14:16,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155174669] [2020-11-30 01:14:16,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-30 01:14:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:14:16,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 36 conjunts are in the unsatisfiable core [2020-11-30 01:14:16,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:14:16,945 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:14:17,035 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:14:19,174 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:14:19,175 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 104 [2020-11-30 01:14:19,178 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 01:14:19,179 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:14:19,180 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:14:19,185 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:14:19,187 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:14:19,188 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:14:19,199 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:14:19,201 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:14:19,206 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:14:19,251 INFO L625 ElimStorePlain]: treesize reduction 117, result has 2.5 percent of original size [2020-11-30 01:14:19,251 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:14:19,252 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:53, output treesize:3 [2020-11-30 01:14:19,306 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:14:19,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:14:25,660 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:14:34,557 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-30 01:14:34,557 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:14:34,558 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 152 [2020-11-30 01:14:34,560 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-11-30 01:14:34,562 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-11-30 01:14:34,563 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:14:34,587 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-11-30 01:14:34,588 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-11-30 01:14:34,590 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:14:34,600 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 4 xjuncts. [2020-11-30 01:14:35,850 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-11-30 01:14:35,851 INFO L625 ElimStorePlain]: treesize reduction 1038, result has 16.3 percent of original size [2020-11-30 01:14:35,852 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 01:14:35,854 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 01:14:35,856 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 01:14:35,859 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 01:14:35,861 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 01:14:35,862 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:62, output treesize:202 [2020-11-30 01:14:35,863 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 01:14:35,864 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 01:14:35,880 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 01:14:35,883 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 01:14:37,323 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 01:14:37,324 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 01:14:37,326 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 01:14:37,328 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 01:14:38,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155174669] [2020-11-30 01:14:38,122 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Unsupported sort (_ BitVec 32) [2020-11-30 01:14:38,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1783703410] [2020-11-30 01:14:38,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-30 01:14:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:14:38,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-30 01:14:38,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:14:38,352 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2020-11-30 01:14:38,353 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 01:14:38,356 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 01:14:38,356 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 01:14:38,356 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:7, output treesize:6 [2020-11-30 01:14:38,623 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:14:38,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 01:14:38,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:15:05,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 01:15:05,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:15:05,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-30 01:15:05,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033676470] [2020-11-30 01:15:05,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:15:05,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:15:05,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:15:05,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=471, Unknown=19, NotChecked=0, Total=552 [2020-11-30 01:15:05,717 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 10 states. [2020-11-30 01:15:05,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:15:05,980 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2020-11-30 01:15:05,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:15:05,982 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2020-11-30 01:15:05,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:15:05,983 INFO L225 Difference]: With dead ends: 25 [2020-11-30 01:15:05,983 INFO L226 Difference]: Without dead ends: 23 [2020-11-30 01:15:05,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 45.1s TimeCoverageRelationStatistics Valid=102, Invalid=581, Unknown=19, NotChecked=0, Total=702 [2020-11-30 01:15:05,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-30 01:15:05,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-11-30 01:15:05,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-30 01:15:05,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2020-11-30 01:15:05,988 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 19 [2020-11-30 01:15:05,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:15:05,989 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2020-11-30 01:15:05,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:15:05,989 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2020-11-30 01:15:05,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 01:15:05,990 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:15:05,990 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:15:06,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk,6 mathsat -unsat_core_generation=3 [2020-11-30 01:15:06,391 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:15:06,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:15:06,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1576111284, now seen corresponding path program 1 times [2020-11-30 01:15:06,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:15:06,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372379064] [2020-11-30 01:15:06,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-30 01:15:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:15:06,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 30 conjunts are in the unsatisfiable core [2020-11-30 01:15:06,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:15:06,648 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:15:06,703 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:15:07,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:15:07,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:15:08,311 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 01:15:09,985 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-30 01:15:12,881 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-11-30 01:15:12,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:15:12,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372379064] [2020-11-30 01:15:12,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:15:12,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 22 [2020-11-30 01:15:12,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072261923] [2020-11-30 01:15:12,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-30 01:15:12,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:15:12,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-30 01:15:12,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=373, Unknown=1, NotChecked=0, Total=462 [2020-11-30 01:15:12,893 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 22 states. [2020-11-30 01:15:13,963 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2020-11-30 01:15:14,187 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 24 [2020-11-30 01:15:14,506 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 31 [2020-11-30 01:15:14,706 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 24 [2020-11-30 01:15:15,099 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 36 [2020-11-30 01:15:15,937 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 33 [2020-11-30 01:15:16,874 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2020-11-30 01:15:17,310 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 31 [2020-11-30 01:16:15,130 WARN L193 SmtUtils]: Spent 57.55 s on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-11-30 01:16:15,649 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 34 [2020-11-30 01:16:16,563 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 43 [2020-11-30 01:16:17,309 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-11-30 01:16:17,942 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 30 [2020-11-30 01:16:18,567 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 32 [2020-11-30 01:16:19,937 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 83 DAG size of output: 51 [2020-11-30 01:16:21,180 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2020-11-30 01:16:25,796 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-11-30 01:16:26,223 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 22 [2020-11-30 01:16:30,975 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 30 [2020-11-30 01:16:33,738 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2020-11-30 01:16:34,299 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-11-30 01:16:40,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:40,602 INFO L93 Difference]: Finished difference Result 72 states and 81 transitions. [2020-11-30 01:16:40,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-30 01:16:40,605 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 22 [2020-11-30 01:16:40,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:16:40,605 INFO L225 Difference]: With dead ends: 72 [2020-11-30 01:16:40,606 INFO L226 Difference]: Without dead ends: 35 [2020-11-30 01:16:40,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 77.6s TimeCoverageRelationStatistics Valid=488, Invalid=1580, Unknown=2, NotChecked=0, Total=2070 [2020-11-30 01:16:40,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-30 01:16:40,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2020-11-30 01:16:40,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-30 01:16:40,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-11-30 01:16:40,614 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 22 [2020-11-30 01:16:40,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:16:40,615 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-11-30 01:16:40,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-11-30 01:16:40,615 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-11-30 01:16:40,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-30 01:16:40,616 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:16:40,616 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:16:40,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-30 01:16:40,835 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:16:40,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:40,835 INFO L82 PathProgramCache]: Analyzing trace with hash -436056987, now seen corresponding path program 2 times [2020-11-30 01:16:40,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:16:40,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772172417] [2020-11-30 01:16:40,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfc17d55-e870-4f52-8e1d-38b67c022a90/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-30 01:16:40,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-11-30 01:16:40,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 01:16:40,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 23 conjunts are in the unsatisfiable core [2020-11-30 01:16:41,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:16:41,025 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:16:41,374 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-11-30 01:16:41,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:16:41,812 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 01:16:42,277 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-11-30 01:16:45,453 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 4 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-30 01:16:45,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772172417] [2020-11-30 01:16:45,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:16:45,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2020-11-30 01:16:45,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767744229] [2020-11-30 01:16:45,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-30 01:16:45,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:16:45,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-30 01:16:45,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=169, Unknown=1, NotChecked=0, Total=210 [2020-11-30 01:16:45,457 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 15 states. [2020-11-30 01:16:47,369 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2020-11-30 01:16:47,967 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-11-30 01:16:48,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:16:48,002 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2020-11-30 01:16:48,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-30 01:16:48,005 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 31 [2020-11-30 01:16:48,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:16:48,006 INFO L225 Difference]: With dead ends: 47 [2020-11-30 01:16:48,006 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:16:48,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=100, Invalid=319, Unknown=1, NotChecked=0, Total=420 [2020-11-30 01:16:48,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:16:48,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:16:48,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:16:48,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:16:48,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2020-11-30 01:16:48,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:16:48,008 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:16:48,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-30 01:16:48,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:16:48,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:16:48,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-30 01:16:48,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:16:48,332 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-11-30 01:16:51,551 WARN L193 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 78 DAG size of output: 44 [2020-11-30 01:16:51,597 INFO L274 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-11-30 01:16:51,597 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2020-11-30 01:16:51,597 INFO L277 CegarLoopResult]: At program point L48(lines 35 49) the Hoare annotation is: true [2020-11-30 01:16:51,597 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-11-30 01:16:51,597 INFO L274 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-11-30 01:16:51,597 INFO L274 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-11-30 01:16:51,598 INFO L274 CegarLoopResult]: For program point L11-3(line 11) no Hoare annotation was computed. [2020-11-30 01:16:51,598 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:16:51,598 INFO L274 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-11-30 01:16:51,598 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:16:51,598 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:16:51,598 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2020-11-30 01:16:51,598 INFO L274 CegarLoopResult]: For program point L24(lines 24 33) no Hoare annotation was computed. [2020-11-30 01:16:51,598 INFO L274 CegarLoopResult]: For program point L12(lines 12 14) no Hoare annotation was computed. [2020-11-30 01:16:51,598 INFO L274 CegarLoopResult]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2020-11-30 01:16:51,599 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:16:51,599 INFO L270 CegarLoopResult]: At program point L21(lines 16 22) the Hoare annotation is: (or (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= (select |#memory_int| ULTIMATE.start_lcp_~a.base) .cse0) (bvslt ULTIMATE.start_main_~n~0 (_ bv1073741824 32)) (= (select |#memory_int| |ULTIMATE.start_main_#t~malloc18.base|) .cse0) (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32)) (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (= (select |#memory_int| ULTIMATE.start_main_~a~0.base) .cse0) (bvsge ULTIMATE.start_main_~y~0 (_ bv0 32)) (or (not (bvslt (bvadd ULTIMATE.start_main_~y~0 |ULTIMATE.start_lcp_#res|) ULTIMATE.start_main_~n~0)) (not (bvslt (bvadd ULTIMATE.start_main_~x~0 |ULTIMATE.start_lcp_#res|) ULTIMATE.start_main_~n~0))) (or (not (bvslt (bvadd ULTIMATE.start_lcp_~l~0 ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~n~0)) (not (bvslt (bvadd ULTIMATE.start_lcp_~l~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~n~0))) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32)))) (and (= ULTIMATE.start_lcp_~l~0 (_ bv0 32)) (= |ULTIMATE.start_lcp_#res| (_ bv0 32)))) [2020-11-30 01:16:51,599 INFO L274 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-11-30 01:16:51,599 INFO L274 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-11-30 01:16:51,599 INFO L274 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed. [2020-11-30 01:16:51,599 INFO L274 CegarLoopResult]: For program point L5-1(lines 5 7) no Hoare annotation was computed. [2020-11-30 01:16:51,599 INFO L274 CegarLoopResult]: For program point L5-2(lines 5 7) no Hoare annotation was computed. [2020-11-30 01:16:51,599 INFO L274 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-11-30 01:16:51,600 INFO L274 CegarLoopResult]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:16:51,600 INFO L270 CegarLoopResult]: At program point L18-5(lines 18 20) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= (select |#memory_int| ULTIMATE.start_lcp_~a.base) .cse0) (bvslt ULTIMATE.start_main_~n~0 (_ bv1073741824 32)) (= (select |#memory_int| |ULTIMATE.start_main_#t~malloc18.base|) .cse0) (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32)) (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (= (select |#memory_int| ULTIMATE.start_main_~a~0.base) .cse0) (bvsge ULTIMATE.start_main_~y~0 (_ bv0 32)) (= ULTIMATE.start_lcp_~y ULTIMATE.start_main_~y~0) (= ULTIMATE.start_lcp_~x ULTIMATE.start_main_~x~0) (= ULTIMATE.start_lcp_~n ULTIMATE.start_main_~n~0) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32)))) [2020-11-30 01:16:51,600 INFO L274 CegarLoopResult]: For program point L18-6(lines 18 20) no Hoare annotation was computed. [2020-11-30 01:16:51,600 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-11-30 01:16:51,600 INFO L274 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed. [2020-11-30 01:16:51,600 INFO L274 CegarLoopResult]: For program point L6-4(line 6) no Hoare annotation was computed. [2020-11-30 01:16:51,606 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-30 01:16:51,611 INFO L168 Benchmark]: Toolchain (without parser) took 199659.16 ms. Allocated memory was 62.9 MB in the beginning and 88.1 MB in the end (delta: 25.2 MB). Free memory was 43.1 MB in the beginning and 27.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:51,611 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 62.9 MB. Free memory is still 44.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:16:51,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.08 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 31.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:51,612 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.63 ms. Allocated memory is still 62.9 MB. Free memory was 31.9 MB in the beginning and 45.0 MB in the end (delta: -13.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:51,613 INFO L168 Benchmark]: Boogie Preprocessor took 37.38 ms. Allocated memory is still 62.9 MB. Free memory was 45.0 MB in the beginning and 43.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:16:51,614 INFO L168 Benchmark]: RCFGBuilder took 819.83 ms. Allocated memory is still 62.9 MB. Free memory was 43.5 MB in the beginning and 42.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:51,615 INFO L168 Benchmark]: TraceAbstraction took 198303.59 ms. Allocated memory was 62.9 MB in the beginning and 88.1 MB in the end (delta: 25.2 MB). Free memory was 41.9 MB in the beginning and 27.1 MB in the end (delta: 14.8 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:51,618 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 62.9 MB. Free memory is still 44.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 379.08 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 31.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.63 ms. Allocated memory is still 62.9 MB. Free memory was 31.9 MB in the beginning and 45.0 MB in the end (delta: -13.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.38 ms. Allocated memory is still 62.9 MB. Free memory was 45.0 MB in the beginning and 43.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 819.83 ms. Allocated memory is still 62.9 MB. Free memory was 43.5 MB in the beginning and 42.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 198303.59 ms. Allocated memory was 62.9 MB in the beginning and 88.1 MB in the end (delta: 25.2 MB). Free memory was 41.9 MB in the beginning and 27.1 MB in the end (delta: 14.8 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 11]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...