./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.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_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/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 aea7f1374c5d76c33344f6e41fb1f8c900f52c61 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/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 aea7f1374c5d76c33344f6e41fb1f8c900f52c61 ......................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:30:36,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:30:36,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:30:36,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:30:36,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:30:36,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:30:36,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:30:36,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:30:36,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:30:36,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:30:36,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:30:36,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:30:36,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:30:36,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:30:36,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:30:36,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:30:36,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:30:36,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:30:36,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:30:36,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:30:36,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:30:36,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:30:36,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:30:36,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:30:36,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:30:36,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:30:36,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:30:36,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:30:36,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:30:36,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:30:36,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:30:36,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:30:36,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:30:36,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:30:36,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:30:36,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:30:36,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:30:36,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:30:36,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:30:36,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:30:36,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:30:36,732 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:30:36,790 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:30:36,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:30:36,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:30:36,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:30:36,795 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:30:36,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:30:36,795 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:30:36,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:30:36,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:30:36,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:30:36,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:30:36,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:30:36,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:30:36,799 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:30:36,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:30:36,799 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:30:36,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:30:36,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:30:36,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:30:36,801 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:30:36,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:30:36,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:30:36,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:30:36,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:30:36,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:30:36,803 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:30:36,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:30:36,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:30:36,804 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:30:36,804 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_7acc9b59-e095-4dce-956e-5a55df06e372/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aea7f1374c5d76c33344f6e41fb1f8c900f52c61 [2020-12-01 15:30:37,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:30:37,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:30:37,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:30:37,253 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:30:37,254 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:30:37,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c [2020-12-01 15:30:37,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/data/596665a5b/843f23801027450bbd548db5a3f7938b/FLAGa4dfad686 [2020-12-01 15:30:38,181 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:30:38,182 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c [2020-12-01 15:30:38,197 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/data/596665a5b/843f23801027450bbd548db5a3f7938b/FLAGa4dfad686 [2020-12-01 15:30:38,532 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/data/596665a5b/843f23801027450bbd548db5a3f7938b [2020-12-01 15:30:38,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:30:38,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:30:38,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:30:38,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:30:38,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:30:38,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:30:38" (1/1) ... [2020-12-01 15:30:38,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43154081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:38, skipping insertion in model container [2020-12-01 15:30:38,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:30:38" (1/1) ... [2020-12-01 15:30:38,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:30:38,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:30:38,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:30:38,854 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:30:38,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:30:38,893 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:30:38,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:38 WrapperNode [2020-12-01 15:30:38,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:30:38,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:30:38,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:30:38,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:30:38,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:38" (1/1) ... [2020-12-01 15:30:38,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:38" (1/1) ... [2020-12-01 15:30:38,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:30:38,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:30:38,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:30:38,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:30:38,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:38" (1/1) ... [2020-12-01 15:30:38,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:38" (1/1) ... [2020-12-01 15:30:38,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:38" (1/1) ... [2020-12-01 15:30:38,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:38" (1/1) ... [2020-12-01 15:30:38,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:38" (1/1) ... [2020-12-01 15:30:38,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:38" (1/1) ... [2020-12-01 15:30:38,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:38" (1/1) ... [2020-12-01 15:30:38,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:30:38,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:30:38,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:30:38,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:30:38,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/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 15:30:39,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:30:39,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:30:39,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:30:39,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:30:39,341 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:30:39,341 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-12-01 15:30:39,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:30:39 BoogieIcfgContainer [2020-12-01 15:30:39,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:30:39,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:30:39,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:30:39,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:30:39,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:30:38" (1/3) ... [2020-12-01 15:30:39,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694d2b0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:30:39, skipping insertion in model container [2020-12-01 15:30:39,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:38" (2/3) ... [2020-12-01 15:30:39,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694d2b0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:30:39, skipping insertion in model container [2020-12-01 15:30:39,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:30:39" (3/3) ... [2020-12-01 15:30:39,355 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound10.c [2020-12-01 15:30:39,374 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:30:39,378 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-01 15:30:39,392 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-01 15:30:39,422 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:30:39,422 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:30:39,422 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:30:39,422 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:30:39,423 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:30:39,423 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:30:39,423 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:30:39,423 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:30:39,439 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-12-01 15:30:39,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 15:30:39,445 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:39,446 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:39,462 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:39,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:39,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2020-12-01 15:30:39,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:30:39,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131300652] [2020-12-01 15:30:39,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:30:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:30:39,658 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 15:30:39,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131300652] [2020-12-01 15:30:39,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:30:39,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:30:39,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794765748] [2020-12-01 15:30:39,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:30:39,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:30:39,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:30:39,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:30:39,686 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2020-12-01 15:30:39,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:30:39,708 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2020-12-01 15:30:39,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:30:39,709 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-01 15:30:39,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:30:39,720 INFO L225 Difference]: With dead ends: 31 [2020-12-01 15:30:39,721 INFO L226 Difference]: Without dead ends: 13 [2020-12-01 15:30:39,724 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 15:30:39,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-01 15:30:39,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-12-01 15:30:39,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-01 15:30:39,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-12-01 15:30:39,767 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2020-12-01 15:30:39,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:30:39,768 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-12-01 15:30:39,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:30:39,768 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-12-01 15:30:39,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 15:30:39,769 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:39,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:39,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:30:39,770 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:39,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:39,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2020-12-01 15:30:39,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:30:39,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826180168] [2020-12-01 15:30:39,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:30:39,794 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 15:30:39,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1076776574] [2020-12-01 15:30:39,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/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 15:30:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:30:39,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 15:30:39,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:30:40,016 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 15:30:40,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826180168] [2020-12-01 15:30:40,017 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 15:30:40,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076776574] [2020-12-01 15:30:40,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:30:40,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:30:40,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949624223] [2020-12-01 15:30:40,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:30:40,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:30:40,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:30:40,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:30:40,023 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2020-12-01 15:30:40,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:30:40,194 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-12-01 15:30:40,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:30:40,196 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-01 15:30:40,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:30:40,197 INFO L225 Difference]: With dead ends: 23 [2020-12-01 15:30:40,197 INFO L226 Difference]: Without dead ends: 17 [2020-12-01 15:30:40,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:30:40,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-01 15:30:40,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-12-01 15:30:40,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-01 15:30:40,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-12-01 15:30:40,212 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2020-12-01 15:30:40,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:30:40,214 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-12-01 15:30:40,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:30:40,214 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-12-01 15:30:40,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:30:40,217 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:40,217 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:40,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-01 15:30:40,438 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:40,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:40,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1863233344, now seen corresponding path program 1 times [2020-12-01 15:30:40,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:30:40,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255447331] [2020-12-01 15:30:40,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:30:40,475 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 15:30:40,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1175514120] [2020-12-01 15:30:40,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/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 15:30:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:30:40,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 15:30:40,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:30:40,728 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 15:30:40,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255447331] [2020-12-01 15:30:40,729 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 15:30:40,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175514120] [2020-12-01 15:30:40,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:30:40,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-01 15:30:40,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134893875] [2020-12-01 15:30:40,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:30:40,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:30:40,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:30:40,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:30:40,744 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 6 states. [2020-12-01 15:30:40,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:30:40,994 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2020-12-01 15:30:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:30:40,996 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-12-01 15:30:40,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:30:40,997 INFO L225 Difference]: With dead ends: 26 [2020-12-01 15:30:40,998 INFO L226 Difference]: Without dead ends: 20 [2020-12-01 15:30:40,999 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 15:30:41,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-01 15:30:41,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-12-01 15:30:41,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-01 15:30:41,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-12-01 15:30:41,011 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2020-12-01 15:30:41,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:30:41,012 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-12-01 15:30:41,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:30:41,012 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-12-01 15:30:41,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:30:41,013 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:41,014 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:41,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:30:41,230 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:41,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:41,231 INFO L82 PathProgramCache]: Analyzing trace with hash 578669199, now seen corresponding path program 2 times [2020-12-01 15:30:41,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:30:41,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76784703] [2020-12-01 15:30:41,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:30:41,248 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 15:30:41,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1459295128] [2020-12-01 15:30:41,249 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/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 15:30:41,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:30:41,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:30:41,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-01 15:30:41,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:30:41,458 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 15:30:41,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76784703] [2020-12-01 15:30:41,459 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 15:30:41,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459295128] [2020-12-01 15:30:41,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:30:41,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-01 15:30:41,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891362427] [2020-12-01 15:30:41,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:30:41,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:30:41,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:30:41,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:30:41,462 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 7 states. [2020-12-01 15:30:41,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:30:41,659 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-12-01 15:30:41,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:30:41,660 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-12-01 15:30:41,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:30:41,661 INFO L225 Difference]: With dead ends: 29 [2020-12-01 15:30:41,661 INFO L226 Difference]: Without dead ends: 23 [2020-12-01 15:30:41,661 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:30:41,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-12-01 15:30:41,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2020-12-01 15:30:41,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-01 15:30:41,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-12-01 15:30:41,668 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13 [2020-12-01 15:30:41,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:30:41,668 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-12-01 15:30:41,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:30:41,669 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-12-01 15:30:41,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 15:30:41,669 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:41,670 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:41,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:30:41,878 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:41,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:41,879 INFO L82 PathProgramCache]: Analyzing trace with hash -858731936, now seen corresponding path program 3 times [2020-12-01 15:30:41,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:30:41,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558357801] [2020-12-01 15:30:41,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:30:41,895 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 15:30:41,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [163222613] [2020-12-01 15:30:41,896 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/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 15:30:41,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-01 15:30:41,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:30:41,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 15:30:41,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:30:42,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558357801] [2020-12-01 15:30:42,083 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 15:30:42,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163222613] [2020-12-01 15:30:42,083 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2020-12-01 15:30:42,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:30:42,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-12-01 15:30:42,084 ERROR L205 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2020-12-01 15:30:42,084 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:30:42,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:30:42,336 WARN L254 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-12-01 15:30:42,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:30:42 BoogieIcfgContainer [2020-12-01 15:30:42,337 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:30:42,338 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:30:42,338 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:30:42,338 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:30:42,339 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:30:39" (3/4) ... [2020-12-01 15:30:42,343 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:30:42,343 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:30:42,346 INFO L168 Benchmark]: Toolchain (without parser) took 3806.80 ms. Allocated memory was 113.2 MB in the beginning and 140.5 MB in the end (delta: 27.3 MB). Free memory was 75.5 MB in the beginning and 92.8 MB in the end (delta: -17.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:30:42,347 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 113.2 MB. Free memory was 91.5 MB in the beginning and 91.4 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:30:42,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.93 ms. Allocated memory is still 113.2 MB. Free memory was 75.4 MB in the beginning and 88.7 MB in the end (delta: -13.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:30:42,358 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.82 ms. Allocated memory is still 113.2 MB. Free memory was 88.7 MB in the beginning and 87.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:30:42,359 INFO L168 Benchmark]: Boogie Preprocessor took 27.45 ms. Allocated memory is still 113.2 MB. Free memory was 87.2 MB in the beginning and 86.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:30:42,360 INFO L168 Benchmark]: RCFGBuilder took 374.68 ms. Allocated memory is still 113.2 MB. Free memory was 86.2 MB in the beginning and 74.6 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:30:42,361 INFO L168 Benchmark]: TraceAbstraction took 2991.78 ms. Allocated memory was 113.2 MB in the beginning and 140.5 MB in the end (delta: 27.3 MB). Free memory was 74.1 MB in the beginning and 92.8 MB in the end (delta: -18.7 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:30:42,361 INFO L168 Benchmark]: Witness Printer took 5.41 ms. Allocated memory is still 140.5 MB. Free memory is still 92.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:30:42,365 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 113.2 MB. Free memory was 91.5 MB in the beginning and 91.4 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 354.93 ms. Allocated memory is still 113.2 MB. Free memory was 75.4 MB in the beginning and 88.7 MB in the end (delta: -13.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.82 ms. Allocated memory is still 113.2 MB. Free memory was 88.7 MB in the beginning and 87.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.45 ms. Allocated memory is still 113.2 MB. Free memory was 87.2 MB in the beginning and 86.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 374.68 ms. Allocated memory is still 113.2 MB. Free memory was 86.2 MB in the beginning and 74.6 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2991.78 ms. Allocated memory was 113.2 MB in the beginning and 140.5 MB in the end (delta: 27.3 MB). Free memory was 74.1 MB in the beginning and 92.8 MB in the end (delta: -18.7 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.41 ms. Allocated memory is still 140.5 MB. Free memory is still 92.8 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: 2.8s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 0.7s, 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, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s 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, 0.1s SatisfiabilityAnalysisTime, 0.4s 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 15:30:45,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:30:45,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:30:45,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:30:45,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:30:45,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:30:45,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:30:45,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:30:45,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:30:45,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:30:45,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:30:45,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:30:45,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:30:45,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:30:45,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:30:45,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:30:45,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:30:45,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:30:45,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:30:45,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:30:45,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:30:45,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:30:45,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:30:45,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:30:45,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:30:45,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:30:45,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:30:45,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:30:45,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:30:45,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:30:45,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:30:45,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:30:45,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:30:45,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:30:45,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:30:45,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:30:45,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:30:45,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:30:45,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:30:45,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:30:45,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:30:45,846 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:30:45,907 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:30:45,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:30:45,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:30:45,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:30:45,912 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:30:45,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:30:45,913 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:30:45,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:30:45,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:30:45,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:30:45,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:30:45,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:30:45,916 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:30:45,917 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:30:45,917 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:30:45,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:30:45,918 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:30:45,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:30:45,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:30:45,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:30:45,919 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:30:45,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:30:45,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:30:45,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:30:45,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:30:45,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:30:45,921 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:30:45,921 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:30:45,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:30:45,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:30:45,922 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:30:45,922 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_7acc9b59-e095-4dce-956e-5a55df06e372/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aea7f1374c5d76c33344f6e41fb1f8c900f52c61 [2020-12-01 15:30:46,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:30:46,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:30:46,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:30:46,565 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:30:46,566 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:30:46,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c [2020-12-01 15:30:46,676 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/data/924e8fed1/427c9876ec684243a0112eacfda35faf/FLAG50f862178 [2020-12-01 15:30:47,295 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:30:47,297 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c [2020-12-01 15:30:47,306 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/data/924e8fed1/427c9876ec684243a0112eacfda35faf/FLAG50f862178 [2020-12-01 15:30:47,644 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/bin/uautomizer/data/924e8fed1/427c9876ec684243a0112eacfda35faf [2020-12-01 15:30:47,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:30:47,652 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:30:47,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:30:47,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:30:47,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:30:47,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:30:47" (1/1) ... [2020-12-01 15:30:47,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a9e1207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:47, skipping insertion in model container [2020-12-01 15:30:47,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:30:47" (1/1) ... [2020-12-01 15:30:47,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:30:47,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:30:47,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:30:48,014 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:30:48,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:30:48,083 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:30:48,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:48 WrapperNode [2020-12-01 15:30:48,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:30:48,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:30:48,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:30:48,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:30:48,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:48" (1/1) ... [2020-12-01 15:30:48,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:48" (1/1) ... [2020-12-01 15:30:48,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:30:48,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:30:48,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:30:48,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:30:48,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:48" (1/1) ... [2020-12-01 15:30:48,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:48" (1/1) ... [2020-12-01 15:30:48,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:48" (1/1) ... [2020-12-01 15:30:48,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:48" (1/1) ... [2020-12-01 15:30:48,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:48" (1/1) ... [2020-12-01 15:30:48,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:48" (1/1) ... [2020-12-01 15:30:48,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:48" (1/1) ... [2020-12-01 15:30:48,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:30:48,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:30:48,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:30:48,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:30:48,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/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 15:30:48,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:30:48,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:30:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:30:48,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:30:49,097 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:30:49,098 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-12-01 15:30:49,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:30:49 BoogieIcfgContainer [2020-12-01 15:30:49,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:30:49,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:30:49,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:30:49,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:30:49,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:30:47" (1/3) ... [2020-12-01 15:30:49,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c82a021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:30:49, skipping insertion in model container [2020-12-01 15:30:49,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:48" (2/3) ... [2020-12-01 15:30:49,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c82a021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:30:49, skipping insertion in model container [2020-12-01 15:30:49,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:30:49" (3/3) ... [2020-12-01 15:30:49,109 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound10.c [2020-12-01 15:30:49,127 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:30:49,131 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-01 15:30:49,145 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-01 15:30:49,173 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:30:49,184 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:30:49,185 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:30:49,185 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:30:49,185 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:30:49,185 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:30:49,185 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:30:49,186 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:30:49,201 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-12-01 15:30:49,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 15:30:49,207 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:49,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:49,208 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:49,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:49,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2020-12-01 15:30:49,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:30:49,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1305235754] [2020-12-01 15:30:49,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/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 15:30:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:30:49,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 15:30:49,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:30:49,531 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 15:30:49,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:30:49,556 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 15:30:49,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1305235754] [2020-12-01 15:30:49,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:30:49,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 15:30:49,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821580643] [2020-12-01 15:30:49,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:30:49,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:30:49,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:30:49,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:30:49,598 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2020-12-01 15:30:49,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:30:49,616 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2020-12-01 15:30:49,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:30:49,618 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-01 15:30:49,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:30:49,629 INFO L225 Difference]: With dead ends: 31 [2020-12-01 15:30:49,630 INFO L226 Difference]: Without dead ends: 13 [2020-12-01 15:30:49,633 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 15:30:49,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-01 15:30:49,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-12-01 15:30:49,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-01 15:30:49,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-12-01 15:30:49,669 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2020-12-01 15:30:49,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:30:49,670 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-12-01 15:30:49,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:30:49,671 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-12-01 15:30:49,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 15:30:49,672 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:49,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:49,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:30:49,891 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:49,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:49,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2020-12-01 15:30:49,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:30:49,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858536665] [2020-12-01 15:30:49,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/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 15:30:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:30:50,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:30:50,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:30:50,188 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 15:30:50,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:30:50,921 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-01 15:30:50,947 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 15:30:50,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858536665] [2020-12-01 15:30:50,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:30:50,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-12-01 15:30:50,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395264195] [2020-12-01 15:30:50,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:30:50,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:30:50,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:30:50,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:30:50,951 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2020-12-01 15:30:52,175 WARN L197 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-01 15:30:54,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:30:54,997 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2020-12-01 15:30:54,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:30:54,998 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2020-12-01 15:30:54,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:30:54,999 INFO L225 Difference]: With dead ends: 28 [2020-12-01 15:30:54,999 INFO L226 Difference]: Without dead ends: 20 [2020-12-01 15:30:55,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:30:55,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-01 15:30:55,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-12-01 15:30:55,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-01 15:30:55,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-12-01 15:30:55,010 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 7 [2020-12-01 15:30:55,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:30:55,011 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-12-01 15:30:55,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:30:55,011 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-12-01 15:30:55,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:30:55,012 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:55,012 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:55,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 15:30:55,226 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:55,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:55,227 INFO L82 PathProgramCache]: Analyzing trace with hash 578669199, now seen corresponding path program 1 times [2020-12-01 15:30:55,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:30:55,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133488720] [2020-12-01 15:30:55,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7acc9b59-e095-4dce-956e-5a55df06e372/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 15:30:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:30:55,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 15:30:55,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:30:55,784 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 15:30:55,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:30:59,230 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 15:30:59,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133488720] [2020-12-01 15:30:59,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:30:59,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 8 [2020-12-01 15:30:59,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463939851] [2020-12-01 15:30:59,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:30:59,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:30:59,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:30:59,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:30:59,234 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 8 states. [2020-12-01 15:31:00,849 WARN L197 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-01 15:31:01,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:31:01,017 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2020-12-01 15:31:01,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:31:01,017 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-12-01 15:31:01,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:31:01,018 INFO L225 Difference]: With dead ends: 24 [2020-12-01 15:31:01,018 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:31:01,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-12-01 15:31:01,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:31:01,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:31:01,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:31:01,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:31:01,020 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-01 15:31:01,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:31:01,020 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:31:01,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:31:01,021 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:31:01,021 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:31:01,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 15:31:01,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:31:02,911 WARN L197 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 36 DAG size of output: 20 [2020-12-01 15:31:04,416 WARN L197 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 43 DAG size of output: 16 [2020-12-01 15:31:04,420 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 15:31:04,420 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 15:31:04,421 INFO L262 CegarLoopResult]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2020-12-01 15:31:04,421 INFO L262 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2020-12-01 15:31:04,421 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2020-12-01 15:31:04,421 INFO L262 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-12-01 15:31:04,422 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:31:04,422 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:31:04,422 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:31:04,422 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 15:31:04,423 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:31:04,423 INFO L262 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2020-12-01 15:31:04,423 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 15:31:04,424 INFO L262 CegarLoopResult]: For program point L10-2(lines 10 13) no Hoare annotation was computed. [2020-12-01 15:31:04,424 INFO L265 CegarLoopResult]: At program point L10-3(lines 9 15) the Hoare annotation is: true [2020-12-01 15:31:04,424 INFO L265 CegarLoopResult]: At program point L39(lines 17 40) the Hoare annotation is: true [2020-12-01 15:31:04,424 INFO L262 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-12-01 15:31:04,439 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 15:31:04,449 INFO L168 Benchmark]: Toolchain (without parser) took 16794.04 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 35.2 MB in the beginning and 36.0 MB in the end (delta: -777.9 kB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:31:04,451 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:31:04,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.05 ms. Allocated memory is still 56.6 MB. Free memory was 35.0 MB in the beginning and 25.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:31:04,456 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.96 ms. Allocated memory is still 56.6 MB. Free memory was 25.1 MB in the beginning and 23.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:31:04,458 INFO L168 Benchmark]: Boogie Preprocessor took 98.89 ms. Allocated memory is still 56.6 MB. Free memory was 23.6 MB in the beginning and 39.7 MB in the end (delta: -16.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:31:04,467 INFO L168 Benchmark]: RCFGBuilder took 847.73 ms. Allocated memory is still 56.6 MB. Free memory was 39.5 MB in the beginning and 27.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:31:04,468 INFO L168 Benchmark]: TraceAbstraction took 15343.30 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 27.2 MB in the beginning and 36.0 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-12-01 15:31:04,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 428.05 ms. Allocated memory is still 56.6 MB. Free memory was 35.0 MB in the beginning and 25.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.96 ms. Allocated memory is still 56.6 MB. Free memory was 25.1 MB in the beginning and 23.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 98.89 ms. Allocated memory is still 56.6 MB. Free memory was 23.6 MB in the beginning and 39.7 MB in the end (delta: -16.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 847.73 ms. Allocated memory is still 56.6 MB. Free memory was 39.5 MB in the beginning and 27.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15343.30 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 27.2 MB in the beginning and 36.0 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.0 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...