./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/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 8faf10aa923bb224adb2f6131dd138bdff3c99e0 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/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 8faf10aa923bb224adb2f6131dd138bdff3c99e0 .......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:40:09,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:40:09,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:40:09,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:40:09,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:40:09,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:40:09,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:40:09,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:40:09,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:40:09,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:40:09,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:40:09,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:40:09,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:40:09,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:40:09,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:40:09,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:40:09,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:40:09,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:40:09,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:40:09,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:40:09,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:40:09,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:40:09,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:40:09,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:40:09,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:40:09,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:40:09,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:40:09,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:40:09,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:40:09,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:40:09,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:40:09,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:40:09,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:40:09,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:40:09,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:40:09,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:40:09,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:40:09,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:40:09,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:40:09,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:40:09,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:40:09,163 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:40:09,188 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:40:09,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:40:09,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:40:09,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:40:09,190 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:40:09,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:40:09,191 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:40:09,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:40:09,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:40:09,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:40:09,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:40:09,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:40:09,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:40:09,192 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:40:09,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:40:09,193 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:40:09,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:40:09,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:40:09,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:40:09,194 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:40:09,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:40:09,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:40:09,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:40:09,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:40:09,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:40:09,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:40:09,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:40:09,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:40:09,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:40:09,196 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_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8faf10aa923bb224adb2f6131dd138bdff3c99e0 [2020-12-01 15:40:09,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:40:09,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:40:09,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:40:09,488 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:40:09,491 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:40:09,492 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c [2020-12-01 15:40:09,550 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/data/1fa10b5db/acccc3a9bebc4dac89bb7fae6fe7e2dc/FLAG3d215999a [2020-12-01 15:40:09,998 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:40:09,998 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c [2020-12-01 15:40:10,020 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/data/1fa10b5db/acccc3a9bebc4dac89bb7fae6fe7e2dc/FLAG3d215999a [2020-12-01 15:40:10,374 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/data/1fa10b5db/acccc3a9bebc4dac89bb7fae6fe7e2dc [2020-12-01 15:40:10,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:40:10,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:40:10,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:40:10,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:40:10,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:40:10,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:40:10" (1/1) ... [2020-12-01 15:40:10,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e32f656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:10, skipping insertion in model container [2020-12-01 15:40:10,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:40:10" (1/1) ... [2020-12-01 15:40:10,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:40:10,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:40:10,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:40:10,601 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:40:10,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:40:10,649 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:40:10,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:10 WrapperNode [2020-12-01 15:40:10,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:40:10,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:40:10,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:40:10,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:40:10,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:10" (1/1) ... [2020-12-01 15:40:10,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:10" (1/1) ... [2020-12-01 15:40:10,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:40:10,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:40:10,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:40:10,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:40:10,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:10" (1/1) ... [2020-12-01 15:40:10,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:10" (1/1) ... [2020-12-01 15:40:10,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:10" (1/1) ... [2020-12-01 15:40:10,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:10" (1/1) ... [2020-12-01 15:40:10,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:10" (1/1) ... [2020-12-01 15:40:10,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:10" (1/1) ... [2020-12-01 15:40:10,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:10" (1/1) ... [2020-12-01 15:40:10,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:40:10,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:40:10,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:40:10,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:40:10,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/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 [2020-12-01 15:40:10,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:40:10,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:40:10,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:40:10,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:40:11,032 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:40:11,032 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-12-01 15:40:11,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:40:11 BoogieIcfgContainer [2020-12-01 15:40:11,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:40:11,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:40:11,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:40:11,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:40:11,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:40:10" (1/3) ... [2020-12-01 15:40:11,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169a3fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:40:11, skipping insertion in model container [2020-12-01 15:40:11,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:10" (2/3) ... [2020-12-01 15:40:11,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169a3fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:40:11, skipping insertion in model container [2020-12-01 15:40:11,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:40:11" (3/3) ... [2020-12-01 15:40:11,043 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound2.c [2020-12-01 15:40:11,057 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:40:11,060 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-01 15:40:11,071 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-01 15:40:11,094 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:40:11,095 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:40:11,095 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:40:11,095 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:40:11,095 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:40:11,096 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:40:11,096 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:40:11,096 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:40:11,124 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-12-01 15:40:11,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 15:40:11,129 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:11,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:11,130 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:11,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:11,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2020-12-01 15:40:11,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:11,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111471284] [2020-12-01 15:40:11,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:11,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:40:11,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111471284] [2020-12-01 15:40:11,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:11,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:40:11,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907742284] [2020-12-01 15:40:11,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:40:11,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:11,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:40:11,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:40:11,361 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2020-12-01 15:40:11,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:11,380 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2020-12-01 15:40:11,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:40:11,381 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-01 15:40:11,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:11,391 INFO L225 Difference]: With dead ends: 31 [2020-12-01 15:40:11,391 INFO L226 Difference]: Without dead ends: 13 [2020-12-01 15:40:11,404 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 [2020-12-01 15:40:11,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-01 15:40:11,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-12-01 15:40:11,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-01 15:40:11,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-12-01 15:40:11,448 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2020-12-01 15:40:11,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:11,449 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-12-01 15:40:11,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:40:11,450 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-12-01 15:40:11,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 15:40:11,450 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:11,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:11,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:40:11,452 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:11,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:11,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2020-12-01 15:40:11,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:11,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810970077] [2020-12-01 15:40:11,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:11,490 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 15:40:11,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1348616731] [2020-12-01 15:40:11,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/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 [2020-12-01 15:40:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:11,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 15:40:11,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:40:11,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:40:11,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810970077] [2020-12-01 15:40:11,666 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 15:40:11,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348616731] [2020-12-01 15:40:11,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:11,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:40:11,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635610622] [2020-12-01 15:40:11,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:40:11,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:11,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:40:11,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:40:11,671 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2020-12-01 15:40:11,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:11,745 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-12-01 15:40:11,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:40:11,746 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-01 15:40:11,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:11,746 INFO L225 Difference]: With dead ends: 23 [2020-12-01 15:40:11,747 INFO L226 Difference]: Without dead ends: 17 [2020-12-01 15:40:11,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:40:11,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-01 15:40:11,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-12-01 15:40:11,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-01 15:40:11,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-12-01 15:40:11,753 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2020-12-01 15:40:11,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:11,753 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-12-01 15:40:11,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:40:11,754 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-12-01 15:40:11,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:40:11,754 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:11,755 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:11,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-01 15:40:11,968 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:11,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:11,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1863233344, now seen corresponding path program 1 times [2020-12-01 15:40:11,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:11,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007450200] [2020-12-01 15:40:11,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:11,983 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 15:40:11,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1385010797] [2020-12-01 15:40:11,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:40:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:12,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 15:40:12,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:40:12,164 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:40:12,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007450200] [2020-12-01 15:40:12,164 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 15:40:12,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385010797] [2020-12-01 15:40:12,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:40:12,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-01 15:40:12,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139317488] [2020-12-01 15:40:12,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:40:12,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:12,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:40:12,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:40:12,167 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 6 states. [2020-12-01 15:40:12,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:12,314 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2020-12-01 15:40:12,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:40:12,315 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-12-01 15:40:12,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:12,316 INFO L225 Difference]: With dead ends: 26 [2020-12-01 15:40:12,316 INFO L226 Difference]: Without dead ends: 20 [2020-12-01 15:40:12,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:40:12,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-01 15:40:12,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-12-01 15:40:12,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-01 15:40:12,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-12-01 15:40:12,337 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2020-12-01 15:40:12,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:12,338 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-12-01 15:40:12,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:40:12,338 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-12-01 15:40:12,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:40:12,339 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:12,339 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:12,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:40:12,543 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:12,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:12,543 INFO L82 PathProgramCache]: Analyzing trace with hash 578669199, now seen corresponding path program 2 times [2020-12-01 15:40:12,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:12,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396761248] [2020-12-01 15:40:12,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:12,574 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 15:40:12,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [201667740] [2020-12-01 15:40:12,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:40:12,625 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:40:12,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:40:12,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-01 15:40:12,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:40:12,725 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:40:12,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396761248] [2020-12-01 15:40:12,726 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 15:40:12,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201667740] [2020-12-01 15:40:12,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:40:12,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-01 15:40:12,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466997065] [2020-12-01 15:40:12,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:40:12,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:12,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:40:12,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:40:12,731 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 7 states. [2020-12-01 15:40:12,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:12,822 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-12-01 15:40:12,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:40:12,823 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-12-01 15:40:12,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:12,824 INFO L225 Difference]: With dead ends: 29 [2020-12-01 15:40:12,824 INFO L226 Difference]: Without dead ends: 23 [2020-12-01 15:40:12,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:40:12,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-12-01 15:40:12,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2020-12-01 15:40:12,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-01 15:40:12,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-12-01 15:40:12,839 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13 [2020-12-01 15:40:12,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:12,839 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-12-01 15:40:12,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:40:12,841 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-12-01 15:40:12,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 15:40:12,844 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:12,844 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:13,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:40:13,044 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:13,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:13,045 INFO L82 PathProgramCache]: Analyzing trace with hash -858731936, now seen corresponding path program 3 times [2020-12-01 15:40:13,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:13,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063989452] [2020-12-01 15:40:13,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:13,066 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 15:40:13,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [34224726] [2020-12-01 15:40:13,067 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:40:13,128 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-01 15:40:13,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:40:13,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 15:40:13,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:40:13,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063989452] [2020-12-01 15:40:13,197 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 15:40:13,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34224726] [2020-12-01 15:40:13,198 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2020-12-01 15:40:13,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:13,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-12-01 15:40:13,199 ERROR L205 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2020-12-01 15:40:13,199 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:40:13,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:40:13,432 WARN L254 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-12-01 15:40:13,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:40:13 BoogieIcfgContainer [2020-12-01 15:40:13,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:40:13,433 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:40:13,433 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:40:13,434 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:40:13,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:40:11" (3/4) ... [2020-12-01 15:40:13,439 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:40:13,439 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:40:13,441 INFO L168 Benchmark]: Toolchain (without parser) took 3061.62 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 55.8 MB in the beginning and 77.3 MB in the end (delta: -21.5 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:40:13,441 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 86.0 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:40:13,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.63 ms. Allocated memory is still 86.0 MB. Free memory was 55.6 MB in the beginning and 63.1 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:40:13,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.68 ms. Allocated memory is still 86.0 MB. Free memory was 63.1 MB in the beginning and 61.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:40:13,443 INFO L168 Benchmark]: Boogie Preprocessor took 21.83 ms. Allocated memory is still 86.0 MB. Free memory was 61.7 MB in the beginning and 60.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:40:13,444 INFO L168 Benchmark]: RCFGBuilder took 325.10 ms. Allocated memory is still 86.0 MB. Free memory was 60.5 MB in the beginning and 49.1 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:40:13,445 INFO L168 Benchmark]: TraceAbstraction took 2396.88 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 48.5 MB in the beginning and 77.3 MB in the end (delta: -28.7 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:40:13,446 INFO L168 Benchmark]: Witness Printer took 6.10 ms. Allocated memory is still 115.3 MB. Free memory is still 77.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:40:13,449 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 86.0 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 270.63 ms. Allocated memory is still 86.0 MB. Free memory was 55.6 MB in the beginning and 63.1 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.68 ms. Allocated memory is still 86.0 MB. Free memory was 63.1 MB in the beginning and 61.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.83 ms. Allocated memory is still 86.0 MB. Free memory was 61.7 MB in the beginning and 60.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 325.10 ms. Allocated memory is still 86.0 MB. Free memory was 60.5 MB in the beginning and 49.1 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2396.88 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 48.5 MB in the beginning and 77.3 MB in the end (delta: -28.7 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. * Witness Printer took 6.10 ms. Allocated memory is still 115.3 MB. Free memory is still 77.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L18] int k; [L19] long long y, x, c; [L20] k = __VERIFIER_nondet_int() [L7] COND FALSE !(!cond) [L23] y = 0 [L24] x = 0 [L25] c = 0 [L27] COND TRUE 1 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y + x [L27] COND TRUE 1 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y + x [L27] COND TRUE 1 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y + x [L27] COND TRUE 1 [L10] COND TRUE !(cond) [L3] __assert_fail("0", "ps2-ll.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 49 SDslu, 64 SDs, 0 SdLazy, 87 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 1305 SizeOfPredicates, 20 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-69874e2 [2020-12-01 15:40:15,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:40:15,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:40:15,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:40:15,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:40:15,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:40:15,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:40:16,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:40:16,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:40:16,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:40:16,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:40:16,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:40:16,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:40:16,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:40:16,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:40:16,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:40:16,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:40:16,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:40:16,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:40:16,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:40:16,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:40:16,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:40:16,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:40:16,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:40:16,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:40:16,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:40:16,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:40:16,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:40:16,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:40:16,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:40:16,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:40:16,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:40:16,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:40:16,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:40:16,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:40:16,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:40:16,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:40:16,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:40:16,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:40:16,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:40:16,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:40:16,079 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:40:16,124 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:40:16,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:40:16,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:40:16,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:40:16,126 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:40:16,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:40:16,126 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:40:16,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:40:16,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:40:16,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:40:16,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:40:16,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:40:16,128 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:40:16,128 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:40:16,128 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:40:16,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:40:16,129 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:40:16,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:40:16,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:40:16,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:40:16,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:40:16,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:40:16,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:40:16,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:40:16,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:40:16,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:40:16,131 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:40:16,131 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:40:16,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:40:16,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:40:16,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:40:16,132 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_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8faf10aa923bb224adb2f6131dd138bdff3c99e0 [2020-12-01 15:40:16,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:40:16,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:40:16,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:40:16,607 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:40:16,608 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:40:16,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c [2020-12-01 15:40:16,682 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/data/ddde56504/04dcda2e027840e092a81b2393676384/FLAGcd03f0c0a [2020-12-01 15:40:17,192 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:40:17,192 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c [2020-12-01 15:40:17,199 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/data/ddde56504/04dcda2e027840e092a81b2393676384/FLAGcd03f0c0a [2020-12-01 15:40:17,602 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/bin/uautomizer/data/ddde56504/04dcda2e027840e092a81b2393676384 [2020-12-01 15:40:17,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:40:17,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:40:17,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:40:17,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:40:17,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:40:17,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:40:17" (1/1) ... [2020-12-01 15:40:17,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f03ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:17, skipping insertion in model container [2020-12-01 15:40:17,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:40:17" (1/1) ... [2020-12-01 15:40:17,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:40:17,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:40:17,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:40:17,835 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:40:17,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:40:17,940 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:40:17,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:17 WrapperNode [2020-12-01 15:40:17,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:40:17,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:40:17,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:40:17,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:40:17,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:17" (1/1) ... [2020-12-01 15:40:17,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:17" (1/1) ... [2020-12-01 15:40:17,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:40:17,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:40:17,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:40:17,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:40:18,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:17" (1/1) ... [2020-12-01 15:40:18,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:17" (1/1) ... [2020-12-01 15:40:18,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:17" (1/1) ... [2020-12-01 15:40:18,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:17" (1/1) ... [2020-12-01 15:40:18,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:17" (1/1) ... [2020-12-01 15:40:18,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:17" (1/1) ... [2020-12-01 15:40:18,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:17" (1/1) ... [2020-12-01 15:40:18,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:40:18,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:40:18,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:40:18,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:40:18,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/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 [2020-12-01 15:40:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:40:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:40:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:40:18,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:40:18,619 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:40:18,620 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-12-01 15:40:18,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:40:18 BoogieIcfgContainer [2020-12-01 15:40:18,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:40:18,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:40:18,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:40:18,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:40:18,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:40:17" (1/3) ... [2020-12-01 15:40:18,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ca030d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:40:18, skipping insertion in model container [2020-12-01 15:40:18,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:17" (2/3) ... [2020-12-01 15:40:18,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ca030d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:40:18, skipping insertion in model container [2020-12-01 15:40:18,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:40:18" (3/3) ... [2020-12-01 15:40:18,629 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound2.c [2020-12-01 15:40:18,644 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:40:18,646 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-01 15:40:18,657 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-01 15:40:18,695 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:40:18,696 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:40:18,696 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:40:18,697 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:40:18,697 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:40:18,697 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:40:18,697 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:40:18,698 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:40:18,712 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-12-01 15:40:18,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 15:40:18,724 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:18,725 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:18,726 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:18,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:18,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2020-12-01 15:40:18,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:40:18,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [678550170] [2020-12-01 15:40:18,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/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 [2020-12-01 15:40:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:18,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 15:40:18,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:40:18,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:40:18,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:40:18,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:40:18,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [678550170] [2020-12-01 15:40:18,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:18,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 15:40:18,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925528898] [2020-12-01 15:40:18,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:40:18,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:40:18,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:40:18,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:40:18,933 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2020-12-01 15:40:18,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:18,949 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2020-12-01 15:40:18,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:40:18,950 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-01 15:40:18,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:18,958 INFO L225 Difference]: With dead ends: 31 [2020-12-01 15:40:18,958 INFO L226 Difference]: Without dead ends: 13 [2020-12-01 15:40:18,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:40:18,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-01 15:40:18,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-12-01 15:40:18,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-01 15:40:18,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-12-01 15:40:18,992 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2020-12-01 15:40:18,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:18,992 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-12-01 15:40:18,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:40:18,993 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-12-01 15:40:18,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 15:40:18,993 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:18,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:19,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:40:19,206 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:19,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:19,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2020-12-01 15:40:19,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:40:19,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64591594] [2020-12-01 15:40:19,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/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 [2020-12-01 15:40:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:19,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:40:19,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:40:19,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:40:19,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:40:19,902 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-01 15:40:19,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:40:19,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64591594] [2020-12-01 15:40:19,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:19,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-12-01 15:40:19,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494392282] [2020-12-01 15:40:19,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:40:19,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:40:19,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:40:19,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:40:19,938 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2020-12-01 15:40:20,857 WARN L197 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-01 15:40:21,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:21,680 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2020-12-01 15:40:21,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:40:21,681 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2020-12-01 15:40:21,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:21,682 INFO L225 Difference]: With dead ends: 28 [2020-12-01 15:40:21,682 INFO L226 Difference]: Without dead ends: 20 [2020-12-01 15:40:21,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:40:21,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-01 15:40:21,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-12-01 15:40:21,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-01 15:40:21,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-12-01 15:40:21,689 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 7 [2020-12-01 15:40:21,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:21,689 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-12-01 15:40:21,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:40:21,690 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-12-01 15:40:21,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:40:21,690 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:21,690 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:21,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 15:40:21,891 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:21,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:21,892 INFO L82 PathProgramCache]: Analyzing trace with hash 578669199, now seen corresponding path program 1 times [2020-12-01 15:40:21,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:40:21,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382870423] [2020-12-01 15:40:21,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76ce8f63-5fe9-4615-b263-cc6a28c7e68b/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 [2020-12-01 15:40:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:22,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 15:40:22,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:40:22,445 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:40:22,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:40:23,398 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-01 15:40:24,745 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-01 15:40:24,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1382870423] [2020-12-01 15:40:24,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:40:24,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 8 [2020-12-01 15:40:24,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849546008] [2020-12-01 15:40:24,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:40:24,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:40:24,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:40:24,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:40:24,749 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 8 states. [2020-12-01 15:40:26,097 WARN L197 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-01 15:40:26,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:26,249 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2020-12-01 15:40:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:40:26,250 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-12-01 15:40:26,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:26,250 INFO L225 Difference]: With dead ends: 24 [2020-12-01 15:40:26,250 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:40:26,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-12-01 15:40:26,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:40:26,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:40:26,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:40:26,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:40:26,252 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-01 15:40:26,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:26,252 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:40:26,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:40:26,252 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:40:26,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:40:26,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 15:40:26,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:40:27,588 WARN L197 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 36 DAG size of output: 20 [2020-12-01 15:40:28,512 WARN L197 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 16 [2020-12-01 15:40:28,514 INFO L258 CegarLoopResult]: At program point L27-2(lines 27 36) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) (_ bv0 32)))) (or (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= .cse0 (bvadd (bvneg (bvmul ((_ sign_extend 32) (_ bv2 32)) ULTIMATE.start_main_~x~0)) ULTIMATE.start_main_~y~0 (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)))) (and (= .cse0 ULTIMATE.start_main_~x~0) (= .cse0 ULTIMATE.start_main_~y~0)))) [2020-12-01 15:40:28,515 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 15:40:28,515 INFO L262 CegarLoopResult]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2020-12-01 15:40:28,515 INFO L262 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2020-12-01 15:40:28,515 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2020-12-01 15:40:28,515 INFO L262 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-12-01 15:40:28,515 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:40:28,515 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:40:28,515 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:40:28,515 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 15:40:28,515 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:40:28,515 INFO L262 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2020-12-01 15:40:28,516 INFO L258 CegarLoopResult]: At program point L10-1(lines 30 31) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= ((_ sign_extend 32) (_ bv0 32)) (bvadd (bvneg (bvmul ((_ sign_extend 32) (_ bv2 32)) ULTIMATE.start_main_~x~0)) ULTIMATE.start_main_~y~0 (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)))) [2020-12-01 15:40:28,516 INFO L262 CegarLoopResult]: For program point L10-2(lines 10 13) no Hoare annotation was computed. [2020-12-01 15:40:28,516 INFO L265 CegarLoopResult]: At program point L10-3(lines 9 15) the Hoare annotation is: true [2020-12-01 15:40:28,516 INFO L265 CegarLoopResult]: At program point L39(lines 17 40) the Hoare annotation is: true [2020-12-01 15:40:28,516 INFO L262 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-12-01 15:40:28,522 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) 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:796) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:240) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) 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) [2020-12-01 15:40:28,526 INFO L168 Benchmark]: Toolchain (without parser) took 10918.88 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 27.0 MB in the beginning and 41.2 MB in the end (delta: -14.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:40:28,527 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 50.3 MB. Free memory was 32.0 MB in the beginning and 31.9 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:40:28,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.75 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.7 MB in the beginning and 45.6 MB in the end (delta: -18.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:40:28,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.42 ms. Allocated memory is still 62.9 MB. Free memory was 45.4 MB in the beginning and 44.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:40:28,529 INFO L168 Benchmark]: Boogie Preprocessor took 36.11 ms. Allocated memory is still 62.9 MB. Free memory was 44.0 MB in the beginning and 42.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:40:28,530 INFO L168 Benchmark]: RCFGBuilder took 590.05 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 30.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:40:28,531 INFO L168 Benchmark]: TraceAbstraction took 9901.46 ms. Allocated memory is still 62.9 MB. Free memory was 30.3 MB in the beginning and 41.2 MB in the end (delta: -11.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:40:28,534 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 50.3 MB. Free memory was 32.0 MB in the beginning and 31.9 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 333.75 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.7 MB in the beginning and 45.6 MB in the end (delta: -18.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.42 ms. Allocated memory is still 62.9 MB. Free memory was 45.4 MB in the beginning and 44.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.11 ms. Allocated memory is still 62.9 MB. Free memory was 44.0 MB in the beginning and 42.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 590.05 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 30.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9901.46 ms. Allocated memory is still 62.9 MB. Free memory was 30.3 MB in the beginning and 41.2 MB in the end (delta: -11.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: 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 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) 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...