./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8f8c2f09b0ca804a60fc0ab2806cac6afbdad74d ......................................................................................................................................................................................................................................................... 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_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8f8c2f09b0ca804a60fc0ab2806cac6afbdad74d ............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 14:00:54,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 14:00:54,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 14:00:54,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 14:00:54,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 14:00:54,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 14:00:54,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 14:00:54,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 14:00:54,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 14:00:54,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 14:00:54,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 14:00:54,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 14:00:54,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 14:00:54,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 14:00:54,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 14:00:54,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 14:00:54,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 14:00:54,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 14:00:54,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 14:00:54,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 14:00:54,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 14:00:54,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 14:00:54,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 14:00:54,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 14:00:54,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 14:00:54,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 14:00:54,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 14:00:54,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 14:00:54,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 14:00:54,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 14:00:54,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 14:00:54,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 14:00:54,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 14:00:54,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 14:00:54,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 14:00:54,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 14:00:54,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 14:00:54,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 14:00:54,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 14:00:54,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 14:00:54,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 14:00:54,839 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 14:00:54,857 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 14:00:54,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 14:00:54,857 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 14:00:54,858 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 14:00:54,858 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 14:00:54,858 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 14:00:54,858 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 14:00:54,858 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 14:00:54,858 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 14:00:54,858 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 14:00:54,858 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 14:00:54,858 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 14:00:54,859 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 14:00:54,859 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 14:00:54,859 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 14:00:54,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 14:00:54,859 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 14:00:54,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 14:00:54,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 14:00:54,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 14:00:54,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 14:00:54,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 14:00:54,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 14:00:54,860 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 14:00:54,860 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 14:00:54,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 14:00:54,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 14:00:54,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 14:00:54,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 14:00:54,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 14:00:54,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 14:00:54,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 14:00:54,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 14:00:54,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 14:00:54,861 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 14:00:54,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 14:00:54,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 14:00:54,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 14:00:54,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 14:00:54,862 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f8c2f09b0ca804a60fc0ab2806cac6afbdad74d [2020-12-09 14:00:55,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 14:00:55,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 14:00:55,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 14:00:55,059 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 14:00:55,060 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 14:00:55,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c [2020-12-09 14:00:55,110 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/data/6be8abcf7/65d0f333e7b84ec18f168ebc92bd8e6f/FLAG51b8af3e2 [2020-12-09 14:00:55,470 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 14:00:55,470 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c [2020-12-09 14:00:55,476 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/data/6be8abcf7/65d0f333e7b84ec18f168ebc92bd8e6f/FLAG51b8af3e2 [2020-12-09 14:00:55,486 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/data/6be8abcf7/65d0f333e7b84ec18f168ebc92bd8e6f [2020-12-09 14:00:55,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 14:00:55,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 14:00:55,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 14:00:55,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 14:00:55,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 14:00:55,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:00:55" (1/1) ... [2020-12-09 14:00:55,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24479bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:55, skipping insertion in model container [2020-12-09 14:00:55,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:00:55" (1/1) ... [2020-12-09 14:00:55,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 14:00:55,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 14:00:55,619 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c[709,722] [2020-12-09 14:00:55,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:00:55,649 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 14:00:55,658 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c[709,722] [2020-12-09 14:00:55,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:00:55,679 INFO L208 MainTranslator]: Completed translation [2020-12-09 14:00:55,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:55 WrapperNode [2020-12-09 14:00:55,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 14:00:55,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 14:00:55,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 14:00:55,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 14:00:55,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:55" (1/1) ... [2020-12-09 14:00:55,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:55" (1/1) ... [2020-12-09 14:00:55,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 14:00:55,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 14:00:55,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 14:00:55,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 14:00:55,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:55" (1/1) ... [2020-12-09 14:00:55,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:55" (1/1) ... [2020-12-09 14:00:55,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:55" (1/1) ... [2020-12-09 14:00:55,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:55" (1/1) ... [2020-12-09 14:00:55,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:55" (1/1) ... [2020-12-09 14:00:55,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:55" (1/1) ... [2020-12-09 14:00:55,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:55" (1/1) ... [2020-12-09 14:00:55,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 14:00:55,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 14:00:55,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 14:00:55,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 14:00:55,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/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 [2020-12-09 14:00:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 14:00:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 14:00:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 14:00:55,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 14:00:56,043 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 14:00:56,044 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2020-12-09 14:00:56,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:00:56 BoogieIcfgContainer [2020-12-09 14:00:56,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 14:00:56,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 14:00:56,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 14:00:56,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 14:00:56,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:00:55" (1/3) ... [2020-12-09 14:00:56,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff8d7df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:00:56, skipping insertion in model container [2020-12-09 14:00:56,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:55" (2/3) ... [2020-12-09 14:00:56,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff8d7df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:00:56, skipping insertion in model container [2020-12-09 14:00:56,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:00:56" (3/3) ... [2020-12-09 14:00:56,053 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound50.c [2020-12-09 14:00:56,067 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 14:00:56,069 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-09 14:00:56,076 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-09 14:00:56,092 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 14:00:56,092 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 14:00:56,092 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 14:00:56,092 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 14:00:56,093 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 14:00:56,093 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 14:00:56,093 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 14:00:56,093 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 14:00:56,102 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-12-09 14:00:56,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 14:00:56,105 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:00:56,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 14:00:56,106 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:00:56,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:00:56,110 INFO L82 PathProgramCache]: Analyzing trace with hash 3980175, now seen corresponding path program 1 times [2020-12-09 14:00:56,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:00:56,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267113065] [2020-12-09 14:00:56,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:00:56,180 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 14:00:56,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1922315330] [2020-12-09 14:00:56,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/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 [2020-12-09 14:00:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 14:00:56,222 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 14:00:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 14:00:56,233 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 14:00:56,255 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 14:00:56,256 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 14:00:56,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-09 14:00:56,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:00:56 BoogieIcfgContainer [2020-12-09 14:00:56,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 14:00:56,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 14:00:56,471 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 14:00:56,471 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 14:00:56,471 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:00:56" (3/4) ... [2020-12-09 14:00:56,473 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 14:00:56,473 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 14:00:56,475 INFO L168 Benchmark]: Toolchain (without parser) took 984.65 ms. Allocated memory is still 96.5 MB. Free memory was 56.9 MB in the beginning and 43.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2020-12-09 14:00:56,475 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 96.5 MB. Free memory is still 73.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:00:56,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.18 ms. Allocated memory is still 96.5 MB. Free memory was 56.6 MB in the beginning and 70.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2020-12-09 14:00:56,476 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.53 ms. Allocated memory is still 96.5 MB. Free memory was 70.3 MB in the beginning and 68.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:00:56,477 INFO L168 Benchmark]: Boogie Preprocessor took 23.83 ms. Allocated memory is still 96.5 MB. Free memory was 68.8 MB in the beginning and 67.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:00:56,478 INFO L168 Benchmark]: RCFGBuilder took 307.16 ms. Allocated memory is still 96.5 MB. Free memory was 67.4 MB in the beginning and 62.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 14:00:56,478 INFO L168 Benchmark]: TraceAbstraction took 423.39 ms. Allocated memory is still 96.5 MB. Free memory was 62.3 MB in the beginning and 44.2 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 14:00:56,479 INFO L168 Benchmark]: Witness Printer took 2.80 ms. Allocated memory is still 96.5 MB. Free memory was 44.2 MB in the beginning and 43.8 MB in the end (delta: 393.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:00:56,482 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 96.5 MB. Free memory is still 73.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 189.18 ms. Allocated memory is still 96.5 MB. Free memory was 56.6 MB in the beginning and 70.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.53 ms. Allocated memory is still 96.5 MB. Free memory was 70.3 MB in the beginning and 68.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.83 ms. Allocated memory is still 96.5 MB. Free memory was 68.8 MB in the beginning and 67.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 307.16 ms. Allocated memory is still 96.5 MB. Free memory was 67.4 MB in the beginning and 62.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 423.39 ms. Allocated memory is still 96.5 MB. Free memory was 62.3 MB in the beginning and 44.2 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Witness Printer took 2.80 ms. Allocated memory is still 96.5 MB. Free memory was 44.2 MB in the beginning and 43.8 MB in the end (delta: 393.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 28. Possible FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L29] x = a [L30] s = 3.25 [L31] r = 1 [L33] COND TRUE 1 [L17] COND TRUE !(cond) [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 0.2.0-7b2dab5 [2020-12-09 14:00:58,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 14:00:58,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 14:00:58,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 14:00:58,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 14:00:58,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 14:00:58,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 14:00:58,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 14:00:58,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 14:00:58,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 14:00:58,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 14:00:58,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 14:00:58,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 14:00:58,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 14:00:58,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 14:00:58,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 14:00:58,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 14:00:58,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 14:00:58,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 14:00:58,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 14:00:58,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 14:00:58,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 14:00:58,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 14:00:58,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 14:00:58,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 14:00:58,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 14:00:58,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 14:00:58,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 14:00:58,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 14:00:58,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 14:00:58,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 14:00:58,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 14:00:58,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 14:00:58,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 14:00:58,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 14:00:58,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 14:00:58,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 14:00:58,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 14:00:58,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 14:00:58,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 14:00:58,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 14:00:58,108 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 14:00:58,136 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 14:00:58,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 14:00:58,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 14:00:58,137 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 14:00:58,137 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 14:00:58,137 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 14:00:58,138 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 14:00:58,138 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 14:00:58,138 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 14:00:58,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 14:00:58,139 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 14:00:58,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 14:00:58,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 14:00:58,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 14:00:58,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 14:00:58,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 14:00:58,140 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 14:00:58,140 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 14:00:58,140 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 14:00:58,140 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 14:00:58,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 14:00:58,140 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 14:00:58,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 14:00:58,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 14:00:58,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 14:00:58,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 14:00:58,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 14:00:58,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 14:00:58,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 14:00:58,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 14:00:58,142 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 14:00:58,142 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 14:00:58,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 14:00:58,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 14:00:58,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 14:00:58,142 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_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f8c2f09b0ca804a60fc0ab2806cac6afbdad74d [2020-12-09 14:00:58,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 14:00:58,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 14:00:58,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 14:00:58,399 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 14:00:58,400 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 14:00:58,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c [2020-12-09 14:00:58,441 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/data/e0497f9c7/ad5dca5918204a998ee19d88069fdfbd/FLAG5fe9d3df4 [2020-12-09 14:00:58,854 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 14:00:58,854 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c [2020-12-09 14:00:58,861 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/data/e0497f9c7/ad5dca5918204a998ee19d88069fdfbd/FLAG5fe9d3df4 [2020-12-09 14:00:58,874 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/data/e0497f9c7/ad5dca5918204a998ee19d88069fdfbd [2020-12-09 14:00:58,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 14:00:58,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 14:00:58,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 14:00:58,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 14:00:58,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 14:00:58,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:00:58" (1/1) ... [2020-12-09 14:00:58,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f33a0e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:58, skipping insertion in model container [2020-12-09 14:00:58,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:00:58" (1/1) ... [2020-12-09 14:00:58,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 14:00:58,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 14:00:58,998 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c[709,722] [2020-12-09 14:00:59,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:00:59,025 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 14:00:59,034 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c[709,722] [2020-12-09 14:00:59,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:00:59,061 INFO L208 MainTranslator]: Completed translation [2020-12-09 14:00:59,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:59 WrapperNode [2020-12-09 14:00:59,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 14:00:59,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 14:00:59,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 14:00:59,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 14:00:59,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:59" (1/1) ... [2020-12-09 14:00:59,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:59" (1/1) ... [2020-12-09 14:00:59,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 14:00:59,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 14:00:59,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 14:00:59,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 14:00:59,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:59" (1/1) ... [2020-12-09 14:00:59,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:59" (1/1) ... [2020-12-09 14:00:59,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:59" (1/1) ... [2020-12-09 14:00:59,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:59" (1/1) ... [2020-12-09 14:00:59,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:59" (1/1) ... [2020-12-09 14:00:59,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:59" (1/1) ... [2020-12-09 14:00:59,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:59" (1/1) ... [2020-12-09 14:00:59,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 14:00:59,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 14:00:59,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 14:00:59,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 14:00:59,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/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 [2020-12-09 14:00:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 14:00:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 14:00:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 14:00:59,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 14:01:12,427 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 14:01:12,428 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2020-12-09 14:01:12,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:01:12 BoogieIcfgContainer [2020-12-09 14:01:12,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 14:01:12,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 14:01:12,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 14:01:12,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 14:01:12,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:00:58" (1/3) ... [2020-12-09 14:01:12,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7070bfa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:01:12, skipping insertion in model container [2020-12-09 14:01:12,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:00:59" (2/3) ... [2020-12-09 14:01:12,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7070bfa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:01:12, skipping insertion in model container [2020-12-09 14:01:12,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:01:12" (3/3) ... [2020-12-09 14:01:12,435 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound50.c [2020-12-09 14:01:12,445 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 14:01:12,448 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-09 14:01:12,455 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-09 14:01:12,470 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 14:01:12,471 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 14:01:12,471 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 14:01:12,471 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 14:01:12,471 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 14:01:12,471 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 14:01:12,471 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 14:01:12,471 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 14:01:12,480 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-12-09 14:01:12,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 14:01:12,483 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:12,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:12,484 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:01:12,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:12,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2020-12-09 14:01:12,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:01:12,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1735487351] [2020-12-09 14:01:12,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/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 [2020-12-09 14:01:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:12,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 14:01:12,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:01:12,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:12,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:01:12,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1735487351] [2020-12-09 14:01:12,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:01:12,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:01:12,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439859909] [2020-12-09 14:01:12,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 14:01:12,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:01:12,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 14:01:12,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 14:01:12,650 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-12-09 14:01:12,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:12,662 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2020-12-09 14:01:12,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 14:01:12,662 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-09 14:01:12,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:12,668 INFO L225 Difference]: With dead ends: 63 [2020-12-09 14:01:12,668 INFO L226 Difference]: Without dead ends: 29 [2020-12-09 14:01:12,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 14:01:12,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-09 14:01:12,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-09 14:01:12,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-09 14:01:12,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2020-12-09 14:01:12,691 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 7 [2020-12-09 14:01:12,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:12,691 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2020-12-09 14:01:12,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 14:01:12,691 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2020-12-09 14:01:12,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 14:01:12,692 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:12,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:12,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 14:01:12,894 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:01:12,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:12,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2020-12-09 14:01:12,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:01:12,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987392438] [2020-12-09 14:01:12,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/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 [2020-12-09 14:01:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:13,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 14:01:13,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:01:13,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:13,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:01:13,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987392438] [2020-12-09 14:01:13,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:01:13,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 14:01:13,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968666662] [2020-12-09 14:01:13,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 14:01:13,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:01:13,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 14:01:13,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 14:01:13,202 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 5 states. [2020-12-09 14:01:41,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:01:41,452 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2020-12-09 14:01:41,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 14:01:41,453 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-09 14:01:41,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:01:41,454 INFO L225 Difference]: With dead ends: 34 [2020-12-09 14:01:41,454 INFO L226 Difference]: Without dead ends: 32 [2020-12-09 14:01:41,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-09 14:01:41,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-09 14:01:41,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2020-12-09 14:01:41,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-09 14:01:41,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2020-12-09 14:01:41,460 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 7 [2020-12-09 14:01:41,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:01:41,460 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2020-12-09 14:01:41,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 14:01:41,460 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2020-12-09 14:01:41,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 14:01:41,461 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:01:41,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:01:41,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 14:01:41,663 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:01:41,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:01:41,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2020-12-09 14:01:41,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:01:41,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654459274] [2020-12-09 14:01:41,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/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 [2020-12-09 14:01:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:01:42,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 14:01:42,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 14:01:42,453 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-09 14:01:42,666 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 14:01:50,990 WARN L838 $PredicateComparison]: unable to prove that (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (and (= ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv4 32)) ULTIMATE.start_main_~a~0))) (fp.sub roundNearestTiesToEven .cse0 .cse0))) (_ bv0 32)) (fp.geq ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.leq ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv50 32)))))) is different from false [2020-12-09 14:01:50,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:01:50,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 14:01:50,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654459274] [2020-12-09 14:01:50,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:01:51,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 14:01:51,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976755488] [2020-12-09 14:01:51,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 14:01:51,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 14:01:51,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 14:01:51,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=18, Unknown=1, NotChecked=8, Total=42 [2020-12-09 14:01:51,001 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 7 states. [2020-12-09 14:01:51,241 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 14 [2020-12-09 14:01:51,484 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 18 [2020-12-09 14:02:08,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:02:08,652 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2020-12-09 14:02:08,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 14:02:08,754 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2020-12-09 14:02:08,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:02:08,755 INFO L225 Difference]: With dead ends: 35 [2020-12-09 14:02:08,755 INFO L226 Difference]: Without dead ends: 33 [2020-12-09 14:02:08,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=27, Invalid=32, Unknown=1, NotChecked=12, Total=72 [2020-12-09 14:02:08,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-09 14:02:08,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-09 14:02:08,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-09 14:02:08,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2020-12-09 14:02:08,761 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 9 [2020-12-09 14:02:08,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:02:08,761 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2020-12-09 14:02:08,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 14:02:08,761 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2020-12-09 14:02:08,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 14:02:08,761 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:02:08,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 14:02:08,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 14:02:08,963 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:02:08,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:02:08,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2020-12-09 14:02:08,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 14:02:08,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146757965] [2020-12-09 14:02:08,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 14:02:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 14:02:11,649 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 14:02:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 14:02:21,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 14:02:21,169 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-12-09 14:02:21,169 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 14:02:21,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 14:02:21,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:02:21 BoogieIcfgContainer [2020-12-09 14:02:21,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 14:02:21,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 14:02:21,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 14:02:21,391 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 14:02:21,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:01:12" (3/4) ... [2020-12-09 14:02:21,393 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 14:02:21,417 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a8633fea-dce5-41ab-a089-a38320486271/bin/utaipan/witness.graphml [2020-12-09 14:02:21,418 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 14:02:21,418 INFO L168 Benchmark]: Toolchain (without parser) took 82540.88 ms. Allocated memory was 56.6 MB in the beginning and 79.7 MB in the end (delta: 23.1 MB). Free memory was 36.2 MB in the beginning and 36.5 MB in the end (delta: -285.3 kB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. [2020-12-09 14:02:21,419 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 39.2 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:02:21,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.14 ms. Allocated memory is still 56.6 MB. Free memory was 35.9 MB in the beginning and 40.3 MB in the end (delta: -4.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 14:02:21,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.25 ms. Allocated memory was 56.6 MB in the beginning and 79.7 MB in the end (delta: 23.1 MB). Free memory was 40.1 MB in the beginning and 63.2 MB in the end (delta: -23.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:02:21,420 INFO L168 Benchmark]: Boogie Preprocessor took 22.89 ms. Allocated memory is still 79.7 MB. Free memory was 63.2 MB in the beginning and 61.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:02:21,420 INFO L168 Benchmark]: RCFGBuilder took 13303.85 ms. Allocated memory is still 79.7 MB. Free memory was 61.8 MB in the beginning and 45.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 14:02:21,421 INFO L168 Benchmark]: TraceAbstraction took 68960.13 ms. Allocated memory is still 79.7 MB. Free memory was 45.0 MB in the beginning and 38.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2020-12-09 14:02:21,421 INFO L168 Benchmark]: Witness Printer took 26.62 ms. Allocated memory is still 79.7 MB. Free memory was 38.0 MB in the beginning and 36.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:02:21,423 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 39.2 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 183.14 ms. Allocated memory is still 56.6 MB. Free memory was 35.9 MB in the beginning and 40.3 MB in the end (delta: -4.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.25 ms. Allocated memory was 56.6 MB in the beginning and 79.7 MB in the end (delta: 23.1 MB). Free memory was 40.1 MB in the beginning and 63.2 MB in the end (delta: -23.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.89 ms. Allocated memory is still 79.7 MB. Free memory was 63.2 MB in the beginning and 61.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 13303.85 ms. Allocated memory is still 79.7 MB. Free memory was 61.8 MB in the beginning and 45.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 68960.13 ms. Allocated memory is still 79.7 MB. Free memory was 45.0 MB in the beginning and 38.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. * Witness Printer took 26.62 ms. Allocated memory is still 79.7 MB. Free memory was 38.0 MB in the beginning and 36.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L29] x = a [L30] s = 3.25 [L31] r = 1 [L33] COND TRUE 1 [L17] COND FALSE !(!(cond)) [L17] COND FALSE !(!(cond)) [L17] COND TRUE !(cond) [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 68.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 46.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 13 SDslu, 88 SDs, 0 SdLazy, 42 SolverSat, 0 SolverUnsat, 17 SolverUnknown, 0 SolverNotchecked, 44.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 1 QuantifiedInterpolants, 1398 SizeOfPredicates, 11 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 proved your program to be incorrect! Received shutdown request...