./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh --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 c987364cd5b3d275ffe2f9fcce601a27cd21bf7f21a4e5bdd8d96666e9465eb2 --- 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-2329fc7 [2022-12-14 06:36:27,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:36:27,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:36:27,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:36:27,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:36:27,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:36:27,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:36:27,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:36:27,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:36:27,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:36:27,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:36:27,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:36:27,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:36:27,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:36:27,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:36:27,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:36:27,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:36:27,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:36:27,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:36:27,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:36:27,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:36:27,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:36:27,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:36:27,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:36:27,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:36:27,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:36:27,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:36:27,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:36:27,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:36:27,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:36:27,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:36:27,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:36:27,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:36:27,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:36:27,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:36:27,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:36:27,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:36:27,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:36:27,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:36:27,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:36:27,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:36:27,627 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 06:36:27,643 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:36:27,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:36:27,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:36:27,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:36:27,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:36:27,644 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:36:27,644 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:36:27,644 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:36:27,644 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:36:27,644 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:36:27,645 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:36:27,645 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:36:27,645 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:36:27,645 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:36:27,645 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:36:27,645 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:36:27,645 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:36:27,645 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:36:27,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:36:27,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:36:27,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:36:27,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:36:27,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:36:27,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:36:27,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:36:27,647 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:36:27,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:36:27,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:36:27,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:36:27,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:36:27,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:36:27,647 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:36:27,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:36:27,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:36:27,648 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:36:27,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:36:27,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:36:27,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:36:27,648 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_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c987364cd5b3d275ffe2f9fcce601a27cd21bf7f21a4e5bdd8d96666e9465eb2 [2022-12-14 06:36:27,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:36:27,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:36:27,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:36:27,865 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:36:27,865 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:36:27,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c [2022-12-14 06:36:30,450 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:36:30,595 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:36:30,595 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c [2022-12-14 06:36:30,602 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/data/42a02f0b2/050b4b53d40f4f168224c973ee1648e2/FLAG2d2948202 [2022-12-14 06:36:30,612 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/data/42a02f0b2/050b4b53d40f4f168224c973ee1648e2 [2022-12-14 06:36:30,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:36:30,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:36:30,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:36:30,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:36:30,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:36:30,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:36:30" (1/1) ... [2022-12-14 06:36:30,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d91f08e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:30, skipping insertion in model container [2022-12-14 06:36:30,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:36:30" (1/1) ... [2022-12-14 06:36:30,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:36:30,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:36:30,747 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_b046668c-16f4-4685-9bc0-8e9f0a04a84a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c[1107,1120] [2022-12-14 06:36:30,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:36:30,816 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:36:30,824 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_b046668c-16f4-4685-9bc0-8e9f0a04a84a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c[1107,1120] [2022-12-14 06:36:30,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:36:30,873 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:36:30,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:30 WrapperNode [2022-12-14 06:36:30,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:36:30,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:36:30,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:36:30,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:36:30,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:30" (1/1) ... [2022-12-14 06:36:30,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:30" (1/1) ... [2022-12-14 06:36:30,915 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 404 [2022-12-14 06:36:30,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:36:30,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:36:30,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:36:30,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:36:30,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:30" (1/1) ... [2022-12-14 06:36:30,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:30" (1/1) ... [2022-12-14 06:36:30,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:30" (1/1) ... [2022-12-14 06:36:30,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:30" (1/1) ... [2022-12-14 06:36:30,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:30" (1/1) ... [2022-12-14 06:36:30,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:30" (1/1) ... [2022-12-14 06:36:30,938 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:30" (1/1) ... [2022-12-14 06:36:30,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:30" (1/1) ... [2022-12-14 06:36:30,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:36:30,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:36:30,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:36:30,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:36:30,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:30" (1/1) ... [2022-12-14 06:36:30,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:36:30,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:36:30,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:36:30,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:36:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:36:31,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:36:31,112 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:36:31,114 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:36:31,604 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:36:31,622 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:36:31,622 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:36:31,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:36:31 BoogieIcfgContainer [2022-12-14 06:36:31,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:36:31,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:36:31,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:36:31,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:36:31,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:36:30" (1/3) ... [2022-12-14 06:36:31,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52357eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:36:31, skipping insertion in model container [2022-12-14 06:36:31,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:30" (2/3) ... [2022-12-14 06:36:31,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52357eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:36:31, skipping insertion in model container [2022-12-14 06:36:31,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:36:31" (3/3) ... [2022-12-14 06:36:31,633 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c [2022-12-14 06:36:31,651 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:36:31,652 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:36:31,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:36:31,697 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;@61e71cd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:36:31,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:36:31,700 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) [2022-12-14 06:36:31,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 06:36:31,704 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:36:31,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 06:36:31,705 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:36:31,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:36:31,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-12-14 06:36:31,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:36:31,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851523313] [2022-12-14 06:36:31,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:36:31,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:36:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:36:31,853 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:36:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:36:31,929 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 06:36:31,930 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:36:31,931 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 06:36:31,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:36:31,936 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 06:36:31,939 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:36:31,952 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 06:36:31,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:36:31 BoogieIcfgContainer [2022-12-14 06:36:31,958 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:36:31,959 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:36:31,959 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:36:31,959 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:36:31,960 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:36:31" (3/4) ... [2022-12-14 06:36:31,962 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 06:36:31,962 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:36:31,963 INFO L158 Benchmark]: Toolchain (without parser) took 1347.48ms. Allocated memory is still 132.1MB. Free memory was 95.0MB in the beginning and 95.7MB in the end (delta: -682.5kB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2022-12-14 06:36:31,964 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 109.1MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:36:31,964 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.24ms. Allocated memory is still 132.1MB. Free memory was 94.7MB in the beginning and 76.8MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 06:36:31,964 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.79ms. Allocated memory is still 132.1MB. Free memory was 76.8MB in the beginning and 72.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 06:36:31,965 INFO L158 Benchmark]: Boogie Preprocessor took 27.06ms. Allocated memory is still 132.1MB. Free memory was 72.7MB in the beginning and 70.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:36:31,965 INFO L158 Benchmark]: RCFGBuilder took 681.40ms. Allocated memory is still 132.1MB. Free memory was 70.3MB in the beginning and 63.1MB in the end (delta: 7.1MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2022-12-14 06:36:31,966 INFO L158 Benchmark]: TraceAbstraction took 331.56ms. Allocated memory is still 132.1MB. Free memory was 62.1MB in the beginning and 95.7MB in the end (delta: -33.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-14 06:36:31,966 INFO L158 Benchmark]: Witness Printer took 3.59ms. Allocated memory is still 132.1MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:36:31,968 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 109.1MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.24ms. Allocated memory is still 132.1MB. Free memory was 94.7MB in the beginning and 76.8MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.79ms. Allocated memory is still 132.1MB. Free memory was 76.8MB in the beginning and 72.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.06ms. Allocated memory is still 132.1MB. Free memory was 72.7MB in the beginning and 70.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 681.40ms. Allocated memory is still 132.1MB. Free memory was 70.3MB in the beginning and 63.1MB in the end (delta: 7.1MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. * TraceAbstraction took 331.56ms. Allocated memory is still 132.1MB. Free memory was 62.1MB in the beginning and 95.7MB in the end (delta: -33.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.59ms. Allocated memory is still 132.1MB. Free memory is still 95.7MB. 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 152, overapproximation of bitwiseOr at line 161, overapproximation of bitwiseAnd at line 146. 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_18 mask_SORT_18 = (SORT_18)-1 >> (sizeof(SORT_18) * 8 - 4); [L35] const SORT_18 msb_SORT_18 = (SORT_18)1 << (4 - 1); [L37] const SORT_71 mask_SORT_71 = (SORT_71)-1 >> (sizeof(SORT_71) * 8 - 10); [L38] const SORT_71 msb_SORT_71 = (SORT_71)1 << (10 - 1); [L40] const SORT_1 var_7 = 0; [L41] const SORT_10 var_12 = 1; [L42] const SORT_1 var_15 = 1; [L43] const SORT_18 var_20 = 1; [L44] const SORT_71 var_72 = 0; [L45] const SORT_10 var_81 = 104; [L47] SORT_1 input_2; [L48] SORT_3 input_4; [L49] SORT_1 input_5; [L50] SORT_1 input_6; [L51] SORT_1 input_32; [L52] SORT_18 input_34; [L53] SORT_1 input_36; [L54] SORT_18 input_38; [L55] SORT_1 input_40; [L56] SORT_1 input_42; [L57] SORT_1 input_48; [L58] SORT_1 input_50; [L59] SORT_1 input_52; [L60] SORT_3 input_54; [L61] SORT_1 input_57; [L62] SORT_1 input_67; [L63] SORT_1 input_75; [L64] SORT_1 input_76; [L65] SORT_1 input_77; [L66] SORT_1 input_89; [L67] SORT_1 input_90; [L68] SORT_1 input_91; [L69] SORT_1 input_102; [L70] SORT_1 input_108; [L71] SORT_1 input_114; [L72] SORT_1 input_125; [L73] SORT_1 input_127; [L74] SORT_71 input_142; [L76] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_71 state_73 = __VERIFIER_nondet_ushort() & mask_SORT_71; [L89] SORT_1 init_9_arg_1 = var_7; [L90] state_8 = init_9_arg_1 [L91] SORT_1 init_17_arg_1 = var_15; [L92] state_16 = init_17_arg_1 [L93] SORT_1 init_29_arg_1 = var_7; [L94] state_28 = init_29_arg_1 [L95] SORT_1 init_31_arg_1 = var_7; [L96] state_30 = init_31_arg_1 [L97] SORT_1 init_45_arg_1 = var_7; [L98] state_44 = init_45_arg_1 [L99] SORT_1 init_47_arg_1 = var_7; [L100] state_46 = init_47_arg_1 [L101] SORT_1 init_60_arg_1 = var_7; [L102] state_59 = init_60_arg_1 [L103] SORT_1 init_62_arg_1 = var_7; [L104] state_61 = init_62_arg_1 [L105] SORT_1 init_64_arg_1 = var_7; [L106] state_63 = init_64_arg_1 [L107] SORT_1 init_66_arg_1 = var_7; [L108] state_65 = init_66_arg_1 [L109] SORT_1 init_70_arg_1 = var_7; [L110] state_69 = init_70_arg_1 [L111] SORT_71 init_74_arg_1 = var_72; [L112] state_73 = init_74_arg_1 VAL [init_17_arg_1=1, init_29_arg_1=0, init_31_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_70_arg_1=0, init_74_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_18=15, mask_SORT_3=255, mask_SORT_71=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_18=8, msb_SORT_3=128, msb_SORT_71=512, state_16=1, state_28=0, state_30=0, state_44=0, state_46=0, state_59=0, state_61=0, state_63=0, state_65=0, state_69=0, state_73=0, state_8=0, var_12=1, var_15=1, var_20=1, var_7=0, var_72=0, var_81=104] [L115] input_2 = __VERIFIER_nondet_uchar() [L116] input_4 = __VERIFIER_nondet_uchar() [L117] input_5 = __VERIFIER_nondet_uchar() [L118] input_6 = __VERIFIER_nondet_uchar() [L119] input_32 = __VERIFIER_nondet_uchar() [L120] input_34 = __VERIFIER_nondet_uchar() [L121] input_36 = __VERIFIER_nondet_uchar() [L122] input_38 = __VERIFIER_nondet_uchar() [L123] input_40 = __VERIFIER_nondet_uchar() [L124] input_42 = __VERIFIER_nondet_uchar() [L125] input_48 = __VERIFIER_nondet_uchar() [L126] input_50 = __VERIFIER_nondet_uchar() [L127] input_52 = __VERIFIER_nondet_uchar() [L128] input_54 = __VERIFIER_nondet_uchar() [L129] input_57 = __VERIFIER_nondet_uchar() [L130] input_67 = __VERIFIER_nondet_uchar() [L131] input_75 = __VERIFIER_nondet_uchar() [L132] input_76 = __VERIFIER_nondet_uchar() [L133] input_77 = __VERIFIER_nondet_uchar() [L134] input_89 = __VERIFIER_nondet_uchar() [L135] input_90 = __VERIFIER_nondet_uchar() [L136] input_91 = __VERIFIER_nondet_uchar() [L137] input_102 = __VERIFIER_nondet_uchar() [L138] input_108 = __VERIFIER_nondet_uchar() [L139] input_114 = __VERIFIER_nondet_uchar() [L140] input_125 = __VERIFIER_nondet_uchar() [L141] input_127 = __VERIFIER_nondet_uchar() [L142] input_142 = __VERIFIER_nondet_ushort() [L145] SORT_1 var_11_arg_0 = state_8; [L146] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L147] SORT_10 var_11 = var_11_arg_0; [L148] SORT_10 var_13_arg_0 = var_11; [L149] SORT_10 var_13_arg_1 = var_12; [L150] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L151] SORT_1 var_14_arg_0 = var_13; [L152] SORT_1 var_14 = ~var_14_arg_0; [L153] SORT_1 var_19_arg_0 = state_16; [L154] var_19_arg_0 = var_19_arg_0 & mask_SORT_1 [L155] SORT_18 var_19 = var_19_arg_0; [L156] SORT_18 var_21_arg_0 = var_19; [L157] SORT_18 var_21_arg_1 = var_20; [L158] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L159] SORT_1 var_22_arg_0 = var_14; [L160] SORT_1 var_22_arg_1 = var_21; [L161] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L162] SORT_1 var_25_arg_0 = var_22; [L163] SORT_1 var_25 = ~var_25_arg_0; [L164] SORT_1 var_26_arg_0 = var_15; [L165] SORT_1 var_26_arg_1 = var_25; [L166] SORT_1 var_26 = var_26_arg_0 & var_26_arg_1; [L167] var_26 = var_26 & mask_SORT_1 [L168] SORT_1 bad_27_arg_0 = var_26; [L169] CALL __VERIFIER_assert(!(bad_27_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: 0.3s, 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, 0.1s 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 [2022-12-14 06:36:31,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh --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 c987364cd5b3d275ffe2f9fcce601a27cd21bf7f21a4e5bdd8d96666e9465eb2 --- 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-2329fc7 [2022-12-14 06:36:33,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:36:33,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:36:33,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:36:33,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:36:33,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:36:33,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:36:33,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:36:33,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:36:33,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:36:33,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:36:33,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:36:33,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:36:33,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:36:33,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:36:33,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:36:33,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:36:33,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:36:33,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:36:33,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:36:33,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:36:33,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:36:33,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:36:33,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:36:33,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:36:33,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:36:33,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:36:33,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:36:33,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:36:33,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:36:33,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:36:33,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:36:33,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:36:33,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:36:33,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:36:33,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:36:33,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:36:33,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:36:33,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:36:33,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:36:33,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:36:33,695 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 06:36:33,710 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:36:33,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:36:33,711 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:36:33,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:36:33,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:36:33,711 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:36:33,711 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:36:33,712 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:36:33,712 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:36:33,712 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:36:33,712 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:36:33,712 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:36:33,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:36:33,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:36:33,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:36:33,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:36:33,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:36:33,713 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 06:36:33,713 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 06:36:33,714 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 06:36:33,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:36:33,714 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:36:33,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:36:33,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:36:33,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 06:36:33,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:36:33,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:36:33,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:36:33,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:36:33,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:36:33,715 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 06:36:33,715 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 06:36:33,715 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:36:33,715 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:36:33,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 06:36:33,716 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_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c987364cd5b3d275ffe2f9fcce601a27cd21bf7f21a4e5bdd8d96666e9465eb2 [2022-12-14 06:36:33,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:36:33,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:36:33,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:36:33,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:36:33,967 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:36:33,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c [2022-12-14 06:36:36,513 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:36:36,682 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:36:36,682 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c [2022-12-14 06:36:36,689 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/data/8ec0e2d9f/f0de7e0fb23c462abb97654669022e0d/FLAGe13f10ddc [2022-12-14 06:36:36,700 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/data/8ec0e2d9f/f0de7e0fb23c462abb97654669022e0d [2022-12-14 06:36:36,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:36:36,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:36:36,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:36:36,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:36:36,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:36:36,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:36:36" (1/1) ... [2022-12-14 06:36:36,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4937aba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:36, skipping insertion in model container [2022-12-14 06:36:36,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:36:36" (1/1) ... [2022-12-14 06:36:36,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:36:36,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:36:36,828 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_b046668c-16f4-4685-9bc0-8e9f0a04a84a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c[1107,1120] [2022-12-14 06:36:36,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:36:36,897 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:36:36,905 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_b046668c-16f4-4685-9bc0-8e9f0a04a84a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c[1107,1120] [2022-12-14 06:36:36,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:36:36,955 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:36:36,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:36 WrapperNode [2022-12-14 06:36:36,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:36:36,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:36:36,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:36:36,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:36:36,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:36" (1/1) ... [2022-12-14 06:36:36,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:36" (1/1) ... [2022-12-14 06:36:36,995 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 404 [2022-12-14 06:36:36,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:36:36,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:36:36,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:36:36,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:36:37,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:36" (1/1) ... [2022-12-14 06:36:37,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:36" (1/1) ... [2022-12-14 06:36:37,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:36" (1/1) ... [2022-12-14 06:36:37,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:36" (1/1) ... [2022-12-14 06:36:37,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:36" (1/1) ... [2022-12-14 06:36:37,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:36" (1/1) ... [2022-12-14 06:36:37,019 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:36" (1/1) ... [2022-12-14 06:36:37,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:36" (1/1) ... [2022-12-14 06:36:37,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:36:37,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:36:37,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:36:37,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:36:37,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:36" (1/1) ... [2022-12-14 06:36:37,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:36:37,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:36:37,051 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:36:37,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:36:37,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:36:37,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:36:37,191 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:36:37,193 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:36:37,461 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:36:37,466 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:36:37,466 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:36:37,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:36:37 BoogieIcfgContainer [2022-12-14 06:36:37,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:36:37,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:36:37,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:36:37,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:36:37,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:36:36" (1/3) ... [2022-12-14 06:36:37,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53668db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:36:37, skipping insertion in model container [2022-12-14 06:36:37,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:36:36" (2/3) ... [2022-12-14 06:36:37,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53668db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:36:37, skipping insertion in model container [2022-12-14 06:36:37,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:36:37" (3/3) ... [2022-12-14 06:36:37,475 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p15.c [2022-12-14 06:36:37,489 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:36:37,489 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:36:37,525 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:36:37,531 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;@58277cf1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:36:37,531 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:36:37,534 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) [2022-12-14 06:36:37,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 06:36:37,539 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:36:37,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 06:36:37,539 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:36:37,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:36:37,543 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-14 06:36:37,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:36:37,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928555500] [2022-12-14 06:36:37,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:36:37,554 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 [2022-12-14 06:36:37,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:36:37,555 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:36:37,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:36:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:36:37,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 06:36:37,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:36:37,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:36:37,788 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:36:37,789 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:36:37,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928555500] [2022-12-14 06:36:37,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928555500] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:36:37,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:36:37,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:36:37,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472234096] [2022-12-14 06:36:37,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:36:37,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:36:37,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:36:37,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:36:37,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:36:37,823 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) [2022-12-14 06:36:37,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:36:37,886 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-14 06:36:37,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:36:37,888 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 [2022-12-14 06:36:37,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:36:37,893 INFO L225 Difference]: With dead ends: 20 [2022-12-14 06:36:37,893 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 06:36:37,895 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 [2022-12-14 06:36:37,897 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 [2022-12-14 06:36:37,898 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] [2022-12-14 06:36:37,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 06:36:37,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-14 06:36:37,918 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) [2022-12-14 06:36:37,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 06:36:37,919 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 06:36:37,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:36:37,920 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 06:36:37,920 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) [2022-12-14 06:36:37,920 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 06:36:37,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:36:37,920 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:36:37,920 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 06:36:37,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/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)] Forceful destruction successful, exit code 0 [2022-12-14 06:36:38,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:36:38,121 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:36:38,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:36:38,122 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-14 06:36:38,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:36:38,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500989216] [2022-12-14 06:36:38,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:36:38,123 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 [2022-12-14 06:36:38,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:36:38,124 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:36:38,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:36:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:36:38,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-14 06:36:38,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:36:38,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:36:38,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:36:38,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:36:38,779 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:36:38,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500989216] [2022-12-14 06:36:38,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500989216] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:36:38,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1094311541] [2022-12-14 06:36:38,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:36:38,780 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 06:36:38,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 06:36:38,781 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 06:36:38,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-14 06:36:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:36:39,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-14 06:36:39,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:36:39,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:36:39,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:36:39,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:36:39,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1094311541] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:36:39,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792897460] [2022-12-14 06:36:39,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:36:39,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:36:39,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:36:39,285 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:36:39,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:36:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:36:39,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-14 06:36:39,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:36:39,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:36:39,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:36:39,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:36:39,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792897460] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:36:39,740 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 06:36:39,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2022-12-14 06:36:39,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104779791] [2022-12-14 06:36:39,741 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 06:36:39,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 06:36:39,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:36:39,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 06:36:39,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-14 06:36:39,743 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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) [2022-12-14 06:36:39,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:36:39,848 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-14 06:36:39,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 06:36:39,849 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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 [2022-12-14 06:36:39,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:36:39,849 INFO L225 Difference]: With dead ends: 16 [2022-12-14 06:36:39,849 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 06:36:39,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:36:39,851 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:36:39,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 16 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:36:39,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 06:36:39,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-14 06:36:39,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-12-14 06:36:39,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-14 06:36:39,855 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-14 06:36:39,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:36:39,855 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-14 06:36:39,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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) [2022-12-14 06:36:39,856 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-14 06:36:39,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 06:36:39,856 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:36:39,856 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 06:36:39,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:36:40,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 06:36:40,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-12-14 06:36:40,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 06:36:40,460 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:36:40,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:36:40,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-14 06:36:40,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:36:40,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885842900] [2022-12-14 06:36:40,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:36:40,466 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 [2022-12-14 06:36:40,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:36:40,467 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:36:40,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:36:40,752 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 06:36:40,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:36:40,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 45 conjunts are in the unsatisfiable core [2022-12-14 06:36:40,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:36:40,886 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:36:40,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:36:41,812 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:36:41,812 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:36:41,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885842900] [2022-12-14 06:36:41,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885842900] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:36:41,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [668344708] [2022-12-14 06:36:41,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:36:41,813 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 06:36:41,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 06:36:41,813 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 06:36:41,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-14 06:36:42,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 06:36:42,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:36:42,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-14 06:36:42,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:36:42,304 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:36:42,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:36:42,823 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:36:42,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [668344708] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:36:42,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688350959] [2022-12-14 06:36:42,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:36:42,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:36:42,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:36:42,824 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:36:42,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 06:36:42,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 06:36:42,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:36:42,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 49 conjunts are in the unsatisfiable core [2022-12-14 06:36:42,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:36:43,084 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:36:43,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:36:43,573 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:36:43,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688350959] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:36:43,573 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 06:36:43,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 7] total 18 [2022-12-14 06:36:43,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845149928] [2022-12-14 06:36:43,574 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 06:36:43,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-14 06:36:43,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:36:43,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-14 06:36:43,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-12-14 06:36:43,576 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 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) [2022-12-14 06:36:43,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:36:43,817 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-12-14 06:36:43,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:36:43,817 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 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 11 [2022-12-14 06:36:43,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:36:43,817 INFO L225 Difference]: With dead ends: 19 [2022-12-14 06:36:43,818 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 06:36:43,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-12-14 06:36:43,819 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:36:43,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 30 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:36:43,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 06:36:43,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-14 06:36:43,821 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) [2022-12-14 06:36:43,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-14 06:36:43,821 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-12-14 06:36:43,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:36:43,822 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-14 06:36:43,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 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) [2022-12-14 06:36:43,822 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-14 06:36:43,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 06:36:43,822 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:36:43,823 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-12-14 06:36:43,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:36:44,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 06:36:44,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2022-12-14 06:36:44,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 06:36:44,424 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:36:44,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:36:44,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-12-14 06:36:44,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:36:44,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399355490] [2022-12-14 06:36:44,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 06:36:44,427 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 [2022-12-14 06:36:44,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:36:44,428 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:36:44,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/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 (9)] Waiting until timeout for monitored process [2022-12-14 06:36:44,592 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 06:36:44,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:36:44,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 42 conjunts are in the unsatisfiable core [2022-12-14 06:36:44,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:36:44,783 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 06:36:44,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:36:45,028 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 06:36:45,029 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:36:45,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399355490] [2022-12-14 06:36:45,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399355490] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:36:45,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2050854487] [2022-12-14 06:36:45,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 06:36:45,029 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 06:36:45,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 06:36:45,030 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 06:36:45,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-12-14 06:36:45,337 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 06:36:45,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:36:45,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 43 conjunts are in the unsatisfiable core [2022-12-14 06:36:45,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:36:45,548 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 06:36:45,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:36:45,776 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 06:36:45,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2050854487] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:36:45,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447448708] [2022-12-14 06:36:45,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 06:36:45,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:36:45,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:36:45,777 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:36:45,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 06:36:45,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 06:36:45,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:36:45,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 43 conjunts are in the unsatisfiable core [2022-12-14 06:36:45,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:36:46,164 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 06:36:46,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:36:46,409 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 06:36:46,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447448708] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:36:46,409 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 06:36:46,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2022-12-14 06:36:46,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624809212] [2022-12-14 06:36:46,410 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 06:36:46,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:36:46,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:36:46,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:36:46,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:36:46,411 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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) [2022-12-14 06:36:46,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:36:46,465 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-12-14 06:36:46,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:36:46,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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 [2022-12-14 06:36:46,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:36:46,466 INFO L225 Difference]: With dead ends: 15 [2022-12-14 06:36:46,466 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 06:36:46,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 69 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-12-14 06:36:46,467 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:36:46,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 10 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:36:46,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 06:36:46,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 06:36:46,468 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) [2022-12-14 06:36:46,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 06:36:46,469 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-12-14 06:36:46,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:36:46,469 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 06:36:46,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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) [2022-12-14 06:36:46,469 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 06:36:46,469 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 06:36:46,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 06:36:46,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/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 (9)] Ended with exit code 0 [2022-12-14 06:36:46,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-14 06:36:46,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-12-14 06:36:47,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 06:36:47,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 06:36:47,134 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 06:36:47,134 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 06:36:47,134 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 22 392) the Hoare annotation is: false [2022-12-14 06:36:47,134 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-14 06:36:47,135 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-14 06:36:47,135 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-12-14 06:36:47,135 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-12-14 06:36:47,135 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-12-14 06:36:47,135 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-12-14 06:36:47,135 INFO L895 garLoopResultBuilder]: At program point L113-2(lines 113 390) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_12~0#1| (_ bv1 32))) (.cse2 (= |ULTIMATE.start_main_~var_7~0#1| (_ bv0 8)))) (or (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1 (= |ULTIMATE.start_main_~state_8~0#1| (_ bv0 8)) .cse2) (and .cse0 .cse1 (= (_ bv1 8) |ULTIMATE.start_main_~var_20~0#1|) (= (_ bv0 8) |ULTIMATE.start_main_~state_63~0#1|) .cse2 (= (_ bv1 8) |ULTIMATE.start_main_~state_16~0#1|) (= |ULTIMATE.start_main_~state_8~0#1| |ULTIMATE.start_main_~var_7~0#1|) (= (_ bv0 8) |ULTIMATE.start_main_~state_59~0#1|)))) [2022-12-14 06:36:47,135 INFO L899 garLoopResultBuilder]: For program point L113-3(lines 113 390) no Hoare annotation was computed. [2022-12-14 06:36:47,137 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2022-12-14 06:36:47,138 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:36:47,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:36:47 BoogieIcfgContainer [2022-12-14 06:36:47,149 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:36:47,149 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:36:47,149 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:36:47,150 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:36:47,150 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:36:37" (3/4) ... [2022-12-14 06:36:47,153 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 06:36:47,164 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 06:36:47,165 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 06:36:47,165 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 06:36:47,210 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:36:47,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:36:47,210 INFO L158 Benchmark]: Toolchain (without parser) took 10507.03ms. Allocated memory was 73.4MB in the beginning and 188.7MB in the end (delta: 115.3MB). Free memory was 28.0MB in the beginning and 134.3MB in the end (delta: -106.2MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2022-12-14 06:36:47,210 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 73.4MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:36:47,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.07ms. Allocated memory is still 73.4MB. Free memory was 54.6MB in the beginning and 36.5MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 06:36:47,211 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.19ms. Allocated memory is still 73.4MB. Free memory was 36.5MB in the beginning and 32.9MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 06:36:47,211 INFO L158 Benchmark]: Boogie Preprocessor took 28.17ms. Allocated memory is still 73.4MB. Free memory was 32.9MB in the beginning and 30.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:36:47,211 INFO L158 Benchmark]: RCFGBuilder took 443.63ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 30.6MB in the beginning and 60.3MB in the end (delta: -29.7MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-12-14 06:36:47,211 INFO L158 Benchmark]: TraceAbstraction took 9679.00ms. Allocated memory was 88.1MB in the beginning and 188.7MB in the end (delta: 100.7MB). Free memory was 59.7MB in the beginning and 140.6MB in the end (delta: -80.8MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2022-12-14 06:36:47,211 INFO L158 Benchmark]: Witness Printer took 60.57ms. Allocated memory is still 188.7MB. Free memory was 140.6MB in the beginning and 134.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 06:36:47,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 73.4MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.07ms. Allocated memory is still 73.4MB. Free memory was 54.6MB in the beginning and 36.5MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.19ms. Allocated memory is still 73.4MB. Free memory was 36.5MB in the beginning and 32.9MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.17ms. Allocated memory is still 73.4MB. Free memory was 32.9MB in the beginning and 30.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 443.63ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 30.6MB in the beginning and 60.3MB in the end (delta: -29.7MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * TraceAbstraction took 9679.00ms. Allocated memory was 88.1MB in the beginning and 188.7MB in the end (delta: 100.7MB). Free memory was 59.7MB in the beginning and 140.6MB in the end (delta: -80.8MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * Witness Printer took 60.57ms. Allocated memory is still 188.7MB. Free memory was 140.6MB in the beginning and 134.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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: 9.6s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 15 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 193 GetRequests, 142 SyntacticMatches, 10 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 43 HoareAnnotationTreeSize, 2 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 68 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 104 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 184 ConstructedInterpolants, 63 QuantifiedInterpolants, 5056 SizeOfPredicates, 369 NumberOfNonLiveVariables, 4032 ConjunctsInSsa, 368 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 54/144 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: 113]: Loop Invariant Derived loop invariant: ((((1bv8 == mask_SORT_1 && cond == 1bv32) && var_12 == 1bv32) && state_8 == 0bv8) && var_7 == 0bv8) || (((((((1bv8 == mask_SORT_1 && var_12 == 1bv32) && 1bv8 == var_20) && 0bv8 == state_63) && var_7 == 0bv8) && 1bv8 == state_16) && state_8 == var_7) && 0bv8 == state_59) RESULT: Ultimate proved your program to be correct! [2022-12-14 06:36:47,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b046668c-16f4-4685-9bc0-8e9f0a04a84a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE