./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p08.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur --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 64bit --witnessprinter.graph.data.programhash 0ba8aabceec0e9fbb56cd96c96ca9543ed2c6a555966d7008b0b602e9c5d8437 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:32:30,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:32:30,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:32:30,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:32:30,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:32:30,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:32:30,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:32:30,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:32:30,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:32:30,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:32:30,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:32:30,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:32:30,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:32:30,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:32:30,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:32:30,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:32:30,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:32:30,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:32:30,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:32:30,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:32:30,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:32:30,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:32:30,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:32:30,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:32:30,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:32:30,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:32:30,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:32:30,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:32:30,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:32:30,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:32:30,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:32:30,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:32:30,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:32:30,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:32:30,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:32:30,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:32:30,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:32:30,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:32:30,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:32:30,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:32:30,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:32:30,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:32:30,898 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:32:30,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:32:30,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:32:30,899 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:32:30,900 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:32:30,900 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:32:30,901 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:32:30,901 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:32:30,901 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:32:30,901 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:32:30,901 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:32:30,902 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:32:30,902 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:32:30,902 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:32:30,902 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:32:30,903 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:32:30,903 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:32:30,903 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:32:30,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:32:30,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:32:30,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:32:30,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:32:30,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:32:30,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:32:30,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:32:30,906 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:32:30,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:32:30,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:32:30,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:32:30,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:32:30,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:32:30,907 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:32:30,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:32:30,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:32:30,908 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:32:30,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:32:30,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:32:30,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:32:30,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ba8aabceec0e9fbb56cd96c96ca9543ed2c6a555966d7008b0b602e9c5d8437 [2022-11-25 22:32:31,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:32:31,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:32:31,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:32:31,341 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:32:31,341 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:32:31,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p08.c [2022-11-25 22:32:34,778 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:32:35,057 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:32:35,058 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p08.c [2022-11-25 22:32:35,072 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/data/ac2654044/8c114f3310ac4f6599ac355c4a56987a/FLAGb687f7274 [2022-11-25 22:32:35,089 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/data/ac2654044/8c114f3310ac4f6599ac355c4a56987a [2022-11-25 22:32:35,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:32:35,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:32:35,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:32:35,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:32:35,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:32:35,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:32:35" (1/1) ... [2022-11-25 22:32:35,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@658bd2ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:35, skipping insertion in model container [2022-11-25 22:32:35,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:32:35" (1/1) ... [2022-11-25 22:32:35,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:32:35,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:32:35,315 WARN L237 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_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p08.c[1107,1120] [2022-11-25 22:32:35,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:32:35,417 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:32:35,430 WARN L237 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_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p08.c[1107,1120] [2022-11-25 22:32:35,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:32:35,495 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:32:35,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:35 WrapperNode [2022-11-25 22:32:35,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:32:35,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:32:35,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:32:35,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:32:35,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:35" (1/1) ... [2022-11-25 22:32:35,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:35" (1/1) ... [2022-11-25 22:32:35,555 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 239 [2022-11-25 22:32:35,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:32:35,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:32:35,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:32:35,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:32:35,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:35" (1/1) ... [2022-11-25 22:32:35,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:35" (1/1) ... [2022-11-25 22:32:35,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:35" (1/1) ... [2022-11-25 22:32:35,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:35" (1/1) ... [2022-11-25 22:32:35,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:35" (1/1) ... [2022-11-25 22:32:35,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:35" (1/1) ... [2022-11-25 22:32:35,597 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:35" (1/1) ... [2022-11-25 22:32:35,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:35" (1/1) ... [2022-11-25 22:32:35,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:32:35,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:32:35,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:32:35,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:32:35,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:35" (1/1) ... [2022-11-25 22:32:35,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:32:35,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:32:35,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:32:35,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:32:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:32:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:32:36,001 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:32:36,004 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:32:36,484 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:32:36,522 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:32:36,522 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 22:32:36,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:36 BoogieIcfgContainer [2022-11-25 22:32:36,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:32:36,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:32:36,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:32:36,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:32:36,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:32:35" (1/3) ... [2022-11-25 22:32:36,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b359e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:32:36, skipping insertion in model container [2022-11-25 22:32:36,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:35" (2/3) ... [2022-11-25 22:32:36,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b359e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:32:36, skipping insertion in model container [2022-11-25 22:32:36,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:36" (3/3) ... [2022-11-25 22:32:36,536 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p08.c [2022-11-25 22:32:36,561 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:32:36,561 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:32:36,627 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:32:36,636 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6d062d2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:32:36,636 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:32:36,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-25 22:32:36,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 22:32:36,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:36,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 22:32:36,650 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:32:36,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:36,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-25 22:32:36,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:36,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847057592] [2022-11-25 22:32:36,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:36,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:37,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:32:37,074 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:32:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:32:37,204 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:32:37,207 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:32:37,209 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 22:32:37,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:32:37,217 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 22:32:37,223 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:32:37,247 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 22:32:37,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:32:37 BoogieIcfgContainer [2022-11-25 22:32:37,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:32:37,259 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:32:37,259 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:32:37,259 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:32:37,260 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:36" (3/4) ... [2022-11-25 22:32:37,264 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:32:37,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:32:37,266 INFO L158 Benchmark]: Toolchain (without parser) took 2170.85ms. Allocated memory is still 146.8MB. Free memory was 107.9MB in the beginning and 51.8MB in the end (delta: 56.1MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-11-25 22:32:37,266 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:32:37,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.24ms. Allocated memory is still 146.8MB. Free memory was 107.4MB in the beginning and 93.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 22:32:37,268 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.77ms. Allocated memory is still 146.8MB. Free memory was 93.7MB in the beginning and 90.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:32:37,268 INFO L158 Benchmark]: Boogie Preprocessor took 73.40ms. Allocated memory is still 146.8MB. Free memory was 90.7MB in the beginning and 89.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:32:37,269 INFO L158 Benchmark]: RCFGBuilder took 894.70ms. Allocated memory is still 146.8MB. Free memory was 89.1MB in the beginning and 81.6MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 22:32:37,270 INFO L158 Benchmark]: TraceAbstraction took 730.10ms. Allocated memory is still 146.8MB. Free memory was 81.2MB in the beginning and 52.3MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-25 22:32:37,270 INFO L158 Benchmark]: Witness Printer took 5.69ms. Allocated memory is still 146.8MB. Free memory was 52.3MB in the beginning and 51.8MB in the end (delta: 479.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:32:37,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.24ms. Allocated memory is still 146.8MB. Free memory was 107.4MB in the beginning and 93.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.77ms. Allocated memory is still 146.8MB. Free memory was 93.7MB in the beginning and 90.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.40ms. Allocated memory is still 146.8MB. Free memory was 90.7MB in the beginning and 89.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 894.70ms. Allocated memory is still 146.8MB. Free memory was 89.1MB in the beginning and 81.6MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 730.10ms. Allocated memory is still 146.8MB. Free memory was 81.2MB in the beginning and 52.3MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 5.69ms. Allocated memory is still 146.8MB. Free memory was 52.3MB in the beginning and 51.8MB in the end (delta: 479.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 137, overapproximation of bitwiseOr at line 135, overapproximation of bitwiseAnd at line 122. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L32] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L34] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 4); [L35] const SORT_31 msb_SORT_31 = (SORT_31)1 << (4 - 1); [L37] const SORT_67 mask_SORT_67 = (SORT_67)-1 >> (sizeof(SORT_67) * 8 - 10); [L38] const SORT_67 msb_SORT_67 = (SORT_67)1 << (10 - 1); [L40] const SORT_1 var_7 = 0; [L41] const SORT_10 var_12 = 0; [L42] const SORT_1 var_21 = 1; [L44] SORT_1 input_2; [L45] SORT_3 input_4; [L46] SORT_1 input_5; [L47] SORT_1 input_6; [L48] SORT_1 input_29; [L49] SORT_31 input_32; [L50] SORT_31 input_34; [L51] SORT_1 input_36; [L52] SORT_1 input_38; [L53] SORT_1 input_42; [L54] SORT_1 input_44; [L55] SORT_1 input_46; [L56] SORT_1 input_48; [L57] SORT_3 input_50; [L58] SORT_1 input_53; [L59] SORT_1 input_55; [L60] SORT_1 input_59; [L61] SORT_1 input_63; [L62] SORT_1 input_65; [L63] SORT_67 input_68; [L64] SORT_1 input_70; [L65] SORT_1 input_72; [L66] SORT_1 input_78; [L67] SORT_1 input_85; [L68] SORT_1 input_91; [L70] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 init_9_arg_1 = var_7; [L79] state_8 = init_9_arg_1 [L80] SORT_1 init_15_arg_1 = var_7; [L81] state_14 = init_15_arg_1 [L82] SORT_1 init_26_arg_1 = var_7; [L83] state_25 = init_26_arg_1 [L84] SORT_1 init_28_arg_1 = var_7; [L85] state_27 = init_28_arg_1 [L86] SORT_1 init_41_arg_1 = var_7; [L87] state_40 = init_41_arg_1 [L88] SORT_1 init_58_arg_1 = var_7; [L89] state_57 = init_58_arg_1 [L90] SORT_1 init_62_arg_1 = var_7; [L91] state_61 = init_62_arg_1 VAL [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_31=15, mask_SORT_67=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_31=8, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=0, state_57=0, state_61=0, state_8=0, var_12=0, var_21=1, var_7=0] [L94] input_2 = __VERIFIER_nondet_uchar() [L95] input_4 = __VERIFIER_nondet_uchar() [L96] input_5 = __VERIFIER_nondet_uchar() [L97] input_6 = __VERIFIER_nondet_uchar() [L98] input_29 = __VERIFIER_nondet_uchar() [L99] input_32 = __VERIFIER_nondet_uchar() [L100] input_34 = __VERIFIER_nondet_uchar() [L101] input_36 = __VERIFIER_nondet_uchar() [L102] input_38 = __VERIFIER_nondet_uchar() [L103] input_42 = __VERIFIER_nondet_uchar() [L104] input_44 = __VERIFIER_nondet_uchar() [L105] input_46 = __VERIFIER_nondet_uchar() [L106] input_48 = __VERIFIER_nondet_uchar() [L107] input_50 = __VERIFIER_nondet_uchar() [L108] input_53 = __VERIFIER_nondet_uchar() [L109] input_55 = __VERIFIER_nondet_uchar() [L110] input_59 = __VERIFIER_nondet_uchar() [L111] input_63 = __VERIFIER_nondet_uchar() [L112] input_65 = __VERIFIER_nondet_uchar() [L113] input_68 = __VERIFIER_nondet_ushort() [L114] input_70 = __VERIFIER_nondet_uchar() [L115] input_72 = __VERIFIER_nondet_uchar() [L116] input_78 = __VERIFIER_nondet_uchar() [L117] input_85 = __VERIFIER_nondet_uchar() [L118] input_91 = __VERIFIER_nondet_uchar() [L121] SORT_1 var_11_arg_0 = state_8; [L122] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L123] SORT_10 var_11 = var_11_arg_0; [L124] SORT_10 var_13_arg_0 = var_11; [L125] SORT_10 var_13_arg_1 = var_12; [L126] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L127] SORT_1 var_16_arg_0 = state_14; [L128] var_16_arg_0 = var_16_arg_0 & mask_SORT_1 [L129] SORT_10 var_16 = var_16_arg_0; [L130] SORT_10 var_17_arg_0 = var_16; [L131] SORT_10 var_17_arg_1 = var_12; [L132] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L133] SORT_1 var_18_arg_0 = var_13; [L134] SORT_1 var_18_arg_1 = var_17; [L135] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L136] SORT_1 var_22_arg_0 = var_18; [L137] SORT_1 var_22 = ~var_22_arg_0; [L138] SORT_1 var_23_arg_0 = var_21; [L139] SORT_1 var_23_arg_1 = var_22; [L140] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L141] var_23 = var_23 & mask_SORT_1 [L142] SORT_1 bad_24_arg_0 = var_23; [L143] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 22:32:37,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur --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 64bit --witnessprinter.graph.data.programhash 0ba8aabceec0e9fbb56cd96c96ca9543ed2c6a555966d7008b0b602e9c5d8437 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:32:40,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:32:40,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:32:40,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:32:40,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:32:40,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:32:40,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:32:40,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:32:40,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:32:40,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:32:40,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:32:40,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:32:40,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:32:40,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:32:40,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:32:40,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:32:40,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:32:40,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:32:40,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:32:40,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:32:40,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:32:40,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:32:40,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:32:40,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:32:40,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:32:40,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:32:40,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:32:40,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:32:40,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:32:40,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:32:40,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:32:40,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:32:40,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:32:40,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:32:40,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:32:40,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:32:40,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:32:40,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:32:40,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:32:40,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:32:40,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:32:40,555 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-25 22:32:40,581 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:32:40,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:32:40,582 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:32:40,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:32:40,584 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:32:40,584 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:32:40,584 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:32:40,584 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:32:40,585 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:32:40,585 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:32:40,585 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:32:40,586 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:32:40,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:32:40,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:32:40,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:32:40,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:32:40,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:32:40,588 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:32:40,588 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:32:40,588 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:32:40,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:32:40,589 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:32:40,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:32:40,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:32:40,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:32:40,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:32:40,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:32:40,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:32:40,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:32:40,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:32:40,591 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:32:40,592 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:32:40,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:32:40,592 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:32:40,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:32:40,593 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_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ba8aabceec0e9fbb56cd96c96ca9543ed2c6a555966d7008b0b602e9c5d8437 [2022-11-25 22:32:41,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:32:41,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:32:41,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:32:41,085 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:32:41,086 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:32:41,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p08.c [2022-11-25 22:32:44,720 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:32:45,025 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:32:45,025 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p08.c [2022-11-25 22:32:45,035 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/data/5404e7421/ee28e1dd9dc0463993a3c3c72129fbc7/FLAG79f2a22da [2022-11-25 22:32:45,062 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/data/5404e7421/ee28e1dd9dc0463993a3c3c72129fbc7 [2022-11-25 22:32:45,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:32:45,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:32:45,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:32:45,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:32:45,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:32:45,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:32:45" (1/1) ... [2022-11-25 22:32:45,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47055ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:45, skipping insertion in model container [2022-11-25 22:32:45,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:32:45" (1/1) ... [2022-11-25 22:32:45,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:32:45,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:32:45,310 WARN L237 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_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p08.c[1107,1120] [2022-11-25 22:32:45,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:32:45,401 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:32:45,416 WARN L237 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_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p08.c[1107,1120] [2022-11-25 22:32:45,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:32:45,478 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:32:45,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:45 WrapperNode [2022-11-25 22:32:45,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:32:45,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:32:45,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:32:45,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:32:45,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:45" (1/1) ... [2022-11-25 22:32:45,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:45" (1/1) ... [2022-11-25 22:32:45,608 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 239 [2022-11-25 22:32:45,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:32:45,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:32:45,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:32:45,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:32:45,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:45" (1/1) ... [2022-11-25 22:32:45,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:45" (1/1) ... [2022-11-25 22:32:45,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:45" (1/1) ... [2022-11-25 22:32:45,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:45" (1/1) ... [2022-11-25 22:32:45,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:45" (1/1) ... [2022-11-25 22:32:45,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:45" (1/1) ... [2022-11-25 22:32:45,683 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:45" (1/1) ... [2022-11-25 22:32:45,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:45" (1/1) ... [2022-11-25 22:32:45,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:32:45,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:32:45,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:32:45,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:32:45,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:45" (1/1) ... [2022-11-25 22:32:45,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:32:45,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:32:45,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:32:45,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:32:45,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:32:45,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:32:46,042 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:32:46,044 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:32:46,466 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:32:46,488 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:32:46,489 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 22:32:46,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:46 BoogieIcfgContainer [2022-11-25 22:32:46,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:32:46,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:32:46,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:32:46,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:32:46,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:32:45" (1/3) ... [2022-11-25 22:32:46,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bff3f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:32:46, skipping insertion in model container [2022-11-25 22:32:46,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:45" (2/3) ... [2022-11-25 22:32:46,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bff3f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:32:46, skipping insertion in model container [2022-11-25 22:32:46,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:46" (3/3) ... [2022-11-25 22:32:46,508 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p08.c [2022-11-25 22:32:46,532 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:32:46,533 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:32:46,620 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:32:46,629 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@71db147b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:32:46,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:32:46,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) [2022-11-25 22:32:46,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:32:46,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:46,647 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:32:46,648 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:32:46,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:46,658 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 22:32:46,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:32:46,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485706968] [2022-11-25 22:32:46,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:46,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:32:46,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:32:46,687 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:32:46,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 22:32:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:46,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 22:32:46,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:47,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:47,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:32:47,249 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:32:47,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485706968] [2022-11-25 22:32:47,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485706968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:47,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:47,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:32:47,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477263760] [2022-11-25 22:32:47,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:47,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:32:47,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:32:47,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:32:47,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:32:47,317 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-25 22:32:47,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:47,390 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 22:32:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:32:47,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-11-25 22:32:47,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:47,406 INFO L225 Difference]: With dead ends: 20 [2022-11-25 22:32:47,407 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 22:32:47,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:32:47,415 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:47,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:32:47,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 22:32:47,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 22:32:47,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-11-25 22:32:47,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 22:32:47,456 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 22:32:47,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:47,457 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 22:32:47,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-25 22:32:47,458 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 22:32:47,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:32:47,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:47,459 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:47,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-25 22:32:47,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:32:47,673 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:32:47,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:47,674 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 22:32:47,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:32:47,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360770543] [2022-11-25 22:32:47,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:47,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:32:47,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:32:47,678 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:32:47,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 22:32:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:47,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-25 22:32:47,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:48,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:48,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:32:49,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:49,169 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:32:49,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360770543] [2022-11-25 22:32:49,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360770543] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:32:49,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1565673209] [2022-11-25 22:32:49,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:49,171 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:32:49,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:32:49,175 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:32:49,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-25 22:32:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:49,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-25 22:32:49,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:49,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:49,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:32:51,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:51,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1565673209] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:32:51,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758299569] [2022-11-25 22:32:51,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:51,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:32:51,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:32:51,411 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:32:51,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:32:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:51,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-25 22:32:51,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:51,878 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:51,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:32:53,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:53,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758299569] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:32:53,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-25 22:32:53,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 16 [2022-11-25 22:32:53,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756795014] [2022-11-25 22:32:53,427 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-25 22:32:53,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 22:32:53,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:32:53,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 22:32:53,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-11-25 22:32:53,431 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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) [2022-11-25 22:32:53,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:53,706 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-25 22:32:53,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 22:32:53,709 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 8 [2022-11-25 22:32:53,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:53,710 INFO L225 Difference]: With dead ends: 19 [2022-11-25 22:32:53,710 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 22:32:53,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2022-11-25 22:32:53,712 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 29 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:53,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 27 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:32:53,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 22:32:53,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-25 22:32:53,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-11-25 22:32:53,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-25 22:32:53,723 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-11-25 22:32:53,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:53,724 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-25 22:32:53,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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) [2022-11-25 22:32:53,725 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-25 22:32:53,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 22:32:53,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:53,726 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-25 22:32:53,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:32:53,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:32:54,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-25 22:32:54,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:32:54,330 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:32:54,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:54,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2022-11-25 22:32:54,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:32:54,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972563597] [2022-11-25 22:32:54,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 22:32:54,333 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:32:54,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:32:54,335 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:32:54,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-25 22:32:54,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 22:32:54,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:32:54,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 122 conjunts are in the unsatisfiable core [2022-11-25 22:32:54,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:55,595 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:55,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:33:15,519 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:33:15,519 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:33:15,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972563597] [2022-11-25 22:33:15,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972563597] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:33:15,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1448950250] [2022-11-25 22:33:15,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 22:33:15,521 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:33:15,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:33:15,523 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:33:15,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-25 22:33:15,997 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 22:33:15,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:33:16,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 55 conjunts are in the unsatisfiable core [2022-11-25 22:33:16,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:33:16,576 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:33:16,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:33:17,736 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 22:33:17,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1448950250] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:33:17,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924283957] [2022-11-25 22:33:17,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 22:33:17,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:33:17,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:33:17,739 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:33:17,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 22:33:17,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 22:33:17,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:33:17,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 80 conjunts are in the unsatisfiable core [2022-11-25 22:33:17,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:33:18,600 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:33:18,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:33:22,978 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:33:22,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924283957] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:33:22,979 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-25 22:33:22,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6, 5, 8, 8] total 27 [2022-11-25 22:33:22,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193010235] [2022-11-25 22:33:22,980 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-25 22:33:22,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-25 22:33:22,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:33:22,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-25 22:33:22,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-25 22:33:22,983 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 27 states have internal predecessors, (63), 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) [2022-11-25 22:33:23,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:33:23,220 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-25 22:33:23,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:33:23,225 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 27 states have internal predecessors, (63), 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 14 [2022-11-25 22:33:23,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:33:23,225 INFO L225 Difference]: With dead ends: 15 [2022-11-25 22:33:23,225 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 22:33:23,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=245, Invalid=625, Unknown=0, NotChecked=0, Total=870 [2022-11-25 22:33:23,227 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:33:23,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 14 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:33:23,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 22:33:23,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 22:33:23,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-25 22:33:23,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 22:33:23,229 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-25 22:33:23,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:33:23,230 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 22:33:23,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 27 states have internal predecessors, (63), 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) [2022-11-25 22:33:23,230 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 22:33:23,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 22:33:23,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 22:33:23,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:33:23,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-25 22:33:23,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 22:33:23,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:33:23,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 22:33:24,053 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 22:33:24,053 INFO L895 garLoopResultBuilder]: At program point L234(lines 22 235) the Hoare annotation is: false [2022-11-25 22:33:24,053 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 22:33:24,053 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 22:33:24,054 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 22:33:24,054 INFO L895 garLoopResultBuilder]: At program point L92-2(lines 92 233) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_57~0#1|)) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse2 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_27~0#1|)) (.cse3 (= |ULTIMATE.start_main_~var_7~0#1| (_ bv0 8))) (.cse4 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_40~0#1|)) (.cse5 (= |ULTIMATE.start_main_~state_8~0#1| |ULTIMATE.start_main_~var_7~0#1|)) (.cse6 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_61~0#1|)) (.cse7 (= (_ bv1 8) |ULTIMATE.start_main_~var_21~0#1|)) (.cse8 (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 32))) (.cse9 (= (_ bv0 8) |ULTIMATE.start_main_~state_14~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_25~0#1|) .cse7 .cse8 .cse9) (and .cse0 .cse1 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9))) [2022-11-25 22:33:24,054 INFO L899 garLoopResultBuilder]: For program point L92-3(lines 92 233) no Hoare annotation was computed. [2022-11-25 22:33:24,054 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-25 22:33:24,054 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-25 22:33:24,054 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-25 22:33:24,059 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-25 22:33:24,063 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2022-11-25 22:33:24,066 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:33:24,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:33:24 BoogieIcfgContainer [2022-11-25 22:33:24,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:33:24,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:33:24,101 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:33:24,101 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:33:24,102 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:46" (3/4) ... [2022-11-25 22:33:24,109 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 22:33:24,128 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-25 22:33:24,129 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 22:33:24,129 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 22:33:24,232 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:33:24,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:33:24,233 INFO L158 Benchmark]: Toolchain (without parser) took 39162.47ms. Allocated memory was 71.3MB in the beginning and 234.9MB in the end (delta: 163.6MB). Free memory was 48.9MB in the beginning and 159.7MB in the end (delta: -110.9MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2022-11-25 22:33:24,233 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 71.3MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:33:24,234 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.40ms. Allocated memory is still 71.3MB. Free memory was 48.7MB in the beginning and 34.3MB in the end (delta: 14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 22:33:24,234 INFO L158 Benchmark]: Boogie Procedure Inliner took 128.00ms. Allocated memory was 71.3MB in the beginning and 92.3MB in the end (delta: 21.0MB). Free memory was 34.3MB in the beginning and 70.2MB in the end (delta: -35.9MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-11-25 22:33:24,235 INFO L158 Benchmark]: Boogie Preprocessor took 79.25ms. Allocated memory is still 92.3MB. Free memory was 70.2MB in the beginning and 68.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:33:24,235 INFO L158 Benchmark]: RCFGBuilder took 801.91ms. Allocated memory is still 92.3MB. Free memory was 68.6MB in the beginning and 49.7MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 22:33:24,236 INFO L158 Benchmark]: TraceAbstraction took 37602.22ms. Allocated memory was 92.3MB in the beginning and 234.9MB in the end (delta: 142.6MB). Free memory was 48.8MB in the beginning and 165.0MB in the end (delta: -116.2MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-11-25 22:33:24,237 INFO L158 Benchmark]: Witness Printer took 133.41ms. Allocated memory is still 234.9MB. Free memory was 165.0MB in the beginning and 159.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:33:24,240 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 71.3MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 403.40ms. Allocated memory is still 71.3MB. Free memory was 48.7MB in the beginning and 34.3MB in the end (delta: 14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 128.00ms. Allocated memory was 71.3MB in the beginning and 92.3MB in the end (delta: 21.0MB). Free memory was 34.3MB in the beginning and 70.2MB in the end (delta: -35.9MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.25ms. Allocated memory is still 92.3MB. Free memory was 70.2MB in the beginning and 68.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 801.91ms. Allocated memory is still 92.3MB. Free memory was 68.6MB in the beginning and 49.7MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 37602.22ms. Allocated memory was 92.3MB in the beginning and 234.9MB in the end (delta: 142.6MB). Free memory was 48.8MB in the beginning and 165.0MB in the end (delta: -116.2MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * Witness Printer took 133.41ms. Allocated memory is still 234.9MB. Free memory was 165.0MB in the beginning and 159.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37.5s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 11 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 132 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=2, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 70 HoareAnnotationTreeSize, 2 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 37 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 33.0s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 42 QuantifiedInterpolants, 5863 SizeOfPredicates, 409 NumberOfNonLiveVariables, 2094 ConjunctsInSsa, 397 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 12/102 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: ((((((((((var_7 == state_57 && 1bv8 == mask_SORT_1) && var_7 == state_27) && var_7 == 0bv8) && var_7 == state_40) && state_8 == var_7) && var_7 == state_61) && var_7 == state_25) && 1bv8 == var_21) && var_12 == 0bv32) && 0bv8 == state_14) || ((((((((((var_7 == state_57 && 1bv8 == mask_SORT_1) && cond == 1bv32) && var_7 == state_27) && var_7 == 0bv8) && var_7 == state_40) && state_8 == var_7) && var_7 == state_61) && 1bv8 == var_21) && var_12 == 0bv32) && 0bv8 == state_14) RESULT: Ultimate proved your program to be correct! [2022-11-25 22:33:24,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c1114cf-b0e3-4e14-b3c1-96e2e91f4bbb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE