./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8 --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 9fcd45ede82cce2814a3d32a6059b5373fc6da41 ................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8 --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 9fcd45ede82cce2814a3d32a6059b5373fc6da41 ................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.1-dev-4e77c04 [2021-10-13 07:30:51,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:30:51,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:30:51,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:30:51,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:30:51,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:30:51,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:30:51,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:30:51,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:30:51,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:30:51,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:30:51,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:30:51,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:30:51,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:30:51,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:30:51,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:30:51,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:30:51,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:30:51,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:30:51,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:30:51,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:30:51,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:30:51,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:30:51,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:30:51,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:30:51,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:30:51,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:30:51,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:30:51,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:30:51,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:30:51,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:30:51,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:30:51,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:30:51,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:30:51,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:30:51,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:30:51,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:30:51,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:30:51,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:30:51,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:30:51,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:30:51,821 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:30:51,852 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:30:51,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:30:51,853 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:30:51,853 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:30:51,853 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:30:51,854 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:30:51,854 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:30:51,854 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:30:51,854 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:30:51,854 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:30:51,854 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:30:51,855 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:30:51,855 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:30:51,855 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:30:51,855 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:30:51,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:30:51,856 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:30:51,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:30:51,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:30:51,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:30:51,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:30:51,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:30:51,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:30:51,857 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:30:51,858 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:30:51,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:30:51,858 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:30:51,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:30:51,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:30:51,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:30:51,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:30:51,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:30:51,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:30:51,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:30:51,860 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:30:51,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:30:51,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:30:51,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:30:51,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:30:51,861 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_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fcd45ede82cce2814a3d32a6059b5373fc6da41 [2021-10-13 07:30:52,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:30:52,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:30:52,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:30:52,135 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:30:52,135 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:30:52,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c [2021-10-13 07:30:52,218 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/data/f720816f5/79b075184b7845be94a9405bcf5de5a0/FLAG78974d441 [2021-10-13 07:30:52,657 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:30:52,658 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c [2021-10-13 07:30:52,664 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/data/f720816f5/79b075184b7845be94a9405bcf5de5a0/FLAG78974d441 [2021-10-13 07:30:53,050 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/data/f720816f5/79b075184b7845be94a9405bcf5de5a0 [2021-10-13 07:30:53,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:30:53,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:30:53,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:30:53,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:30:53,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:30:53,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:30:53" (1/1) ... [2021-10-13 07:30:53,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b255819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:53, skipping insertion in model container [2021-10-13 07:30:53,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:30:53" (1/1) ... [2021-10-13 07:30:53,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:30:53,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:30:53,269 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c[709,722] [2021-10-13 07:30:53,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:30:53,313 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:30:53,322 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c[709,722] [2021-10-13 07:30:53,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:30:53,346 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:30:53,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:53 WrapperNode [2021-10-13 07:30:53,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:30:53,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:30:53,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:30:53,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:30:53,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:53" (1/1) ... [2021-10-13 07:30:53,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:53" (1/1) ... [2021-10-13 07:30:53,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:30:53,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:30:53,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:30:53,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:30:53,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:53" (1/1) ... [2021-10-13 07:30:53,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:53" (1/1) ... [2021-10-13 07:30:53,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:53" (1/1) ... [2021-10-13 07:30:53,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:53" (1/1) ... [2021-10-13 07:30:53,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:53" (1/1) ... [2021-10-13 07:30:53,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:53" (1/1) ... [2021-10-13 07:30:53,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:53" (1/1) ... [2021-10-13 07:30:53,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:30:53,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:30:53,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:30:53,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:30:53,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:53" (1/1) ... [2021-10-13 07:30:53,432 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:30:53,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:30:53,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:30:53,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:30:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:30:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:30:53,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:30:53,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:30:53,747 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:30:53,747 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-13 07:30:53,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:30:53 BoogieIcfgContainer [2021-10-13 07:30:53,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:30:53,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:30:53,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:30:53,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:30:53,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:30:53" (1/3) ... [2021-10-13 07:30:53,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c543cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:30:53, skipping insertion in model container [2021-10-13 07:30:53,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:53" (2/3) ... [2021-10-13 07:30:53,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c543cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:30:53, skipping insertion in model container [2021-10-13 07:30:53,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:30:53" (3/3) ... [2021-10-13 07:30:53,759 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound1.c [2021-10-13 07:30:53,764 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:30:53,764 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-13 07:30:53,811 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:30:53,818 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:30:53,818 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 07:30:53,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:30:53,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 07:30:53,837 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:30:53,837 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 07:30:53,838 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:30:53,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:30:53,843 INFO L82 PathProgramCache]: Analyzing trace with hash 3980175, now seen corresponding path program 1 times [2021-10-13 07:30:53,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:30:53,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436734577] [2021-10-13 07:30:53,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:30:53,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:30:54,018 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 07:30:54,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [399998124] [2021-10-13 07:30:54,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:30:54,021 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:30:54,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:30:54,023 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:30:54,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:30:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:30:54,115 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:30:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:30:54,164 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 07:30:54,170 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:30:54,172 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:30:54,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:30:54,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:30:54,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:30:54,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:30:54,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:30:54,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:30:54,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-13 07:30:54,397 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:30:54,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:30:54 BoogieIcfgContainer [2021-10-13 07:30:54,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:30:54,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:30:54,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:30:54,419 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:30:54,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:30:53" (3/4) ... [2021-10-13 07:30:54,423 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 07:30:54,423 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:30:54,425 INFO L168 Benchmark]: Toolchain (without parser) took 1370.43 ms. Allocated memory is still 113.2 MB. Free memory was 74.6 MB in the beginning and 58.0 MB in the end (delta: 16.6 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:54,426 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 113.2 MB. Free memory is still 91.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:30:54,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.75 ms. Allocated memory is still 113.2 MB. Free memory was 74.4 MB in the beginning and 89.4 MB in the end (delta: -15.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:54,427 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.95 ms. Allocated memory is still 113.2 MB. Free memory was 89.4 MB in the beginning and 88.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:30:54,428 INFO L168 Benchmark]: Boogie Preprocessor took 37.27 ms. Allocated memory is still 113.2 MB. Free memory was 87.8 MB in the beginning and 86.8 MB in the end (delta: 946.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:54,429 INFO L168 Benchmark]: RCFGBuilder took 326.60 ms. Allocated memory is still 113.2 MB. Free memory was 86.4 MB in the beginning and 74.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:54,430 INFO L168 Benchmark]: TraceAbstraction took 666.53 ms. Allocated memory is still 113.2 MB. Free memory was 73.8 MB in the beginning and 58.4 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:30:54,430 INFO L168 Benchmark]: Witness Printer took 4.45 ms. Allocated memory is still 113.2 MB. Free memory was 58.0 MB in the beginning and 58.0 MB in the end (delta: 2.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:30:54,434 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 113.2 MB. Free memory is still 91.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.75 ms. Allocated memory is still 113.2 MB. Free memory was 74.4 MB in the beginning and 89.4 MB in the end (delta: -15.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.95 ms. Allocated memory is still 113.2 MB. Free memory was 89.4 MB in the beginning and 88.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.27 ms. Allocated memory is still 113.2 MB. Free memory was 87.8 MB in the beginning and 86.8 MB in the end (delta: 946.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 326.60 ms. Allocated memory is still 113.2 MB. Free memory was 86.4 MB in the beginning and 74.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 666.53 ms. Allocated memory is still 113.2 MB. Free memory was 73.8 MB in the beginning and 58.4 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.45 ms. Allocated memory is still 113.2 MB. Free memory was 58.0 MB in the beginning and 58.0 MB in the end (delta: 2.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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() - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 586.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 8.1ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.9ms SsaConstructionTime, 30.3ms SatisfiabilityAnalysisTime, 0.0ms 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 [2021-10-13 07:30:54,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:30:56,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:30:56,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:30:56,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:30:56,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:30:56,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:30:56,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:30:56,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:30:56,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:30:56,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:30:56,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:30:56,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:30:56,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:30:56,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:30:56,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:30:56,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:30:56,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:30:56,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:30:56,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:30:56,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:30:56,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:30:56,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:30:56,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:30:56,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:30:56,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:30:56,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:30:56,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:30:56,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:30:56,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:30:56,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:30:56,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:30:56,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:30:56,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:30:56,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:30:56,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:30:56,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:30:56,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:30:56,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:30:56,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:30:56,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:30:56,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:30:56,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:30:57,020 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:30:57,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:30:57,021 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:30:57,021 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:30:57,021 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:30:57,022 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:30:57,022 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:30:57,022 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:30:57,022 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:30:57,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:30:57,023 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:30:57,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:30:57,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:30:57,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:30:57,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:30:57,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:30:57,025 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:30:57,025 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:30:57,025 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:30:57,025 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:30:57,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:30:57,026 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:30:57,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:30:57,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:30:57,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:30:57,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:30:57,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:30:57,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:30:57,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:30:57,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:30:57,028 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:30:57,028 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:30:57,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:30:57,029 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:30:57,029 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:30:57,029 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_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fcd45ede82cce2814a3d32a6059b5373fc6da41 [2021-10-13 07:30:57,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:30:57,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:30:57,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:30:57,429 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:30:57,430 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:30:57,430 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c [2021-10-13 07:30:57,526 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/data/d232880b1/332d6e1061d74f86b69fe99afd10713f/FLAG6279acc75 [2021-10-13 07:30:58,080 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:30:58,080 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c [2021-10-13 07:30:58,091 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/data/d232880b1/332d6e1061d74f86b69fe99afd10713f/FLAG6279acc75 [2021-10-13 07:30:58,416 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/data/d232880b1/332d6e1061d74f86b69fe99afd10713f [2021-10-13 07:30:58,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:30:58,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:30:58,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:30:58,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:30:58,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:30:58,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:30:58" (1/1) ... [2021-10-13 07:30:58,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29623c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:58, skipping insertion in model container [2021-10-13 07:30:58,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:30:58" (1/1) ... [2021-10-13 07:30:58,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:30:58,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:30:58,616 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c[709,722] [2021-10-13 07:30:58,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:30:58,651 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:30:58,674 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c[709,722] [2021-10-13 07:30:58,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:30:58,725 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:30:58,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:58 WrapperNode [2021-10-13 07:30:58,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:30:58,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:30:58,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:30:58,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:30:58,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:58" (1/1) ... [2021-10-13 07:30:58,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:58" (1/1) ... [2021-10-13 07:30:58,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:30:58,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:30:58,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:30:58,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:30:58,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:58" (1/1) ... [2021-10-13 07:30:58,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:58" (1/1) ... [2021-10-13 07:30:58,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:58" (1/1) ... [2021-10-13 07:30:58,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:58" (1/1) ... [2021-10-13 07:30:58,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:58" (1/1) ... [2021-10-13 07:30:58,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:58" (1/1) ... [2021-10-13 07:30:58,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:58" (1/1) ... [2021-10-13 07:30:58,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:30:58,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:30:58,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:30:58,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:30:58,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:58" (1/1) ... [2021-10-13 07:30:58,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:30:58,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:30:58,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:30:58,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:30:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:30:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:30:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:30:58,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:31:10,851 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:31:10,851 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-13 07:31:10,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:31:10 BoogieIcfgContainer [2021-10-13 07:31:10,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:31:10,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:31:10,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:31:10,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:31:10,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:30:58" (1/3) ... [2021-10-13 07:31:10,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e31a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:31:10, skipping insertion in model container [2021-10-13 07:31:10,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:30:58" (2/3) ... [2021-10-13 07:31:10,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e31a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:31:10, skipping insertion in model container [2021-10-13 07:31:10,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:31:10" (3/3) ... [2021-10-13 07:31:10,868 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound1.c [2021-10-13 07:31:10,886 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:31:10,888 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-13 07:31:10,936 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:31:10,947 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:31:10,949 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 07:31:10,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:31:10,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 07:31:10,973 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:31:10,973 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:31:10,974 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:31:10,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:31:10,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-13 07:31:11,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:31:11,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504364754] [2021-10-13 07:31:11,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:31:11,009 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:31:11,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:31:11,013 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:31:11,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:31:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:31:11,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 07:31:11,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:31:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:31:11,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:31:11,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:31:11,374 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:31:11,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504364754] [2021-10-13 07:31:11,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504364754] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:31:11,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:31:11,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 07:31:11,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846902845] [2021-10-13 07:31:11,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:31:11,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:31:11,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:31:11,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:31:11,406 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:31:11,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:31:11,427 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2021-10-13 07:31:11,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:31:11,429 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-13 07:31:11,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:31:11,438 INFO L225 Difference]: With dead ends: 63 [2021-10-13 07:31:11,438 INFO L226 Difference]: Without dead ends: 29 [2021-10-13 07:31:11,441 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:31:11,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-13 07:31:11,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-13 07:31:11,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:31:11,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-10-13 07:31:11,478 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 7 [2021-10-13 07:31:11,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:31:11,479 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-10-13 07:31:11,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:31:11,480 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-10-13 07:31:11,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 07:31:11,480 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:31:11,480 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:31:11,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:31:11,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:31:11,695 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:31:11,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:31:11,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-13 07:31:11,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:31:11,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989138533] [2021-10-13 07:31:11,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:31:11,697 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:31:11,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:31:11,701 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:31:11,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:31:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:31:11,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 07:31:11,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:31:12,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:31:12,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:31:18,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:31:18,416 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:31:18,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989138533] [2021-10-13 07:31:18,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989138533] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:31:18,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:31:18,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-13 07:31:18,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088756085] [2021-10-13 07:31:18,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:31:18,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:31:18,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:31:18,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:31:18,421 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:31:47,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:31:47,924 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2021-10-13 07:31:47,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:31:47,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-13 07:31:47,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:31:47,925 INFO L225 Difference]: With dead ends: 34 [2021-10-13 07:31:47,926 INFO L226 Difference]: Without dead ends: 32 [2021-10-13 07:31:47,927 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 5447.5ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:31:47,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-13 07:31:47,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2021-10-13 07:31:47,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.24) internal successors, (31), 30 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:31:47,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-10-13 07:31:47,935 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 7 [2021-10-13 07:31:47,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:31:47,935 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-10-13 07:31:47,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:31:47,936 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-10-13 07:31:47,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:31:47,937 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:31:47,937 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:31:47,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:31:48,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:31:48,152 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:31:48,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:31:48,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2021-10-13 07:31:48,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:31:48,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973704421] [2021-10-13 07:31:48,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:31:48,155 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:31:48,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:31:48,158 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:31:48,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:31:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:31:48,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:31:48,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:31:50,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:31:50,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:31:56,530 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) is different from false [2021-10-13 07:31:58,567 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) is different from true [2021-10-13 07:32:27,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:32:27,470 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:32:27,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973704421] [2021-10-13 07:32:27,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973704421] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:32:27,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:32:27,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-13 07:32:27,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634271331] [2021-10-13 07:32:27,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 07:32:27,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:32:27,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 07:32:27,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=62, Unknown=2, NotChecked=16, Total=110 [2021-10-13 07:32:27,473 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:32:44,801 WARN L207 SmtUtils]: Spent 9.86 s on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2021-10-13 07:32:48,320 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 (fp.geq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse0 (fp.leq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))))) (and (or (and (or (not .cse0) (not .cse1)) (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32))) (and .cse1 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse0)) (= c_ULTIMATE.start_main_~r~0 (_ bv1 32)) .cse1 (not (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~x~0) (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) .cse0 (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-10-13 07:33:27,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:33:27,022 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2021-10-13 07:33:27,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 07:33:27,023 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 07:33:27,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:33:27,024 INFO L225 Difference]: With dead ends: 36 [2021-10-13 07:33:27,024 INFO L226 Difference]: Without dead ends: 34 [2021-10-13 07:33:27,025 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 41223.9ms TimeCoverageRelationStatistics Valid=48, Invalid=88, Unknown=4, NotChecked=42, Total=182 [2021-10-13 07:33:27,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-13 07:33:27,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2021-10-13 07:33:27,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 32 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:33:27,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-10-13 07:33:27,032 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 9 [2021-10-13 07:33:27,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:33:27,033 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2021-10-13 07:33:27,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:33:27,033 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-10-13 07:33:27,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 07:33:27,034 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:33:27,034 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:33:27,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:33:27,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:33:27,243 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:33:27,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:33:27,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2021-10-13 07:33:27,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:33:27,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1280022856] [2021-10-13 07:33:27,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:33:27,245 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:33:27,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:33:27,247 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:33:27,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:33:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:33:29,104 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:33:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:33:31,666 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-13 07:33:31,667 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:33:31,668 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:33:31,669 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:33:31,670 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:33:31,670 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:33:31,670 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:33:31,671 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:33:31,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:33:31,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:33:31,878 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:33:31,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:33:31 BoogieIcfgContainer [2021-10-13 07:33:31,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:33:31,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:33:31,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:33:31,901 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:33:31,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:31:10" (3/4) ... [2021-10-13 07:33:31,903 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 07:33:31,939 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:33:31,946 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:33:31,947 INFO L168 Benchmark]: Toolchain (without parser) took 153525.97 ms. Allocated memory was 77.6 MB in the beginning and 104.9 MB in the end (delta: 27.3 MB). Free memory was 60.8 MB in the beginning and 50.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:33:31,947 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 77.6 MB. Free memory is still 58.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:33:31,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.48 ms. Allocated memory is still 77.6 MB. Free memory was 60.6 MB in the beginning and 59.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:33:31,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.18 ms. Allocated memory is still 77.6 MB. Free memory was 59.5 MB in the beginning and 57.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:33:31,949 INFO L168 Benchmark]: Boogie Preprocessor took 50.85 ms. Allocated memory is still 77.6 MB. Free memory was 57.8 MB in the beginning and 56.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:33:31,950 INFO L168 Benchmark]: RCFGBuilder took 12034.15 ms. Allocated memory is still 77.6 MB. Free memory was 56.3 MB in the beginning and 44.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:33:31,950 INFO L168 Benchmark]: TraceAbstraction took 141044.80 ms. Allocated memory was 77.6 MB in the beginning and 104.9 MB in the end (delta: 27.3 MB). Free memory was 44.4 MB in the beginning and 52.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:33:31,951 INFO L168 Benchmark]: Witness Printer took 45.55 ms. Allocated memory is still 104.9 MB. Free memory was 52.4 MB in the beginning and 50.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:33:31,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 77.6 MB. Free memory is still 58.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 304.48 ms. Allocated memory is still 77.6 MB. Free memory was 60.6 MB in the beginning and 59.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.18 ms. Allocated memory is still 77.6 MB. Free memory was 59.5 MB in the beginning and 57.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.85 ms. Allocated memory is still 77.6 MB. Free memory was 57.8 MB in the beginning and 56.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 12034.15 ms. Allocated memory is still 77.6 MB. Free memory was 56.3 MB in the beginning and 44.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 141044.80 ms. Allocated memory was 77.6 MB in the beginning and 104.9 MB in the end (delta: 27.3 MB). Free memory was 44.4 MB in the beginning and 52.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. * Witness Printer took 45.55 ms. Allocated memory is still 104.9 MB. Free memory was 52.4 MB in the beginning and 50.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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() - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 140941.9ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 13.5ms, AutomataDifference: 89117.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 83 SDtfs, 23 SDslu, 110 SDs, 0 SdLazy, 80 SolverSat, 11 SolverUnsat, 27 SolverUnknown, 0 SolverNotchecked, 69154.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 46671.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 37.2ms AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 44.3ms SsaConstructionTime, 2634.9ms SatisfiabilityAnalysisTime, 45410.4ms InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 327 SizeOfPredicates, 11 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2021-10-13 07:33:32,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_093d12b9-8f4a-4a5e-a2a5-c7c4075a64a4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...